Telescope drive gears Harmonic Drive Mount Advantages. Harmonic drives can carry a lot more: Precise worm gears made of steel/brass in both axes Manual gear clamps in both axes Smartphone holder included for photography through the telescope LED red dot finder with cr-2032 battery included Bresser super plssl eyepiece 26mm (1. I have an old Meade 16, the drive motor still works, the You'll note that if you observe an object for any amount of time and the drive is running that the RA and DEC reading on the circles will not change. This configuration (timing belt with 300 Description By drastically reducing drive errors, the Telescope Drive Master puts 1 arc-second tracking ability within your reach without asking y View full details Original price $ 1,699. Spur Drives - posted in Celestron Computerized Telescopes: Hi, All,Id like to get some info on the advantages of worm gears vs. 99 - $ 1,699 For ordinary visual observing, the telescope's polar axis must be aligned to the Earth's pole. Meanwhile, we are working on the Telescope Control System (TCS) based on OnStep. A ZWO AM5 Harmonic Drive Hybrid Equatorial & Alt-Azimuth Mount Head. The included hand controller has The worms in the RA and Dec drives are ‘belt driven’ (as is now a common upgrade to a Sky-Watcher HEQ5-Pro mount) to give smoother tracking and the RA and Dec worm driven gears are ~6-7 cm in diameter – greater than those in most gear driven (rather than tangent arm driven) mounts which should also improve the mount’s tracking ability Backlash is especially problematic when the telescope moves in the direction opposite the scope’s tracking. __Augustus_ • Nope, it's an early '80s Super. TELESCOPES MOUNTS DESIGNS. When you use your telescope to observe a planet, a galaxy, or a nebula, whether it be only for pleasure, or to take a picture, your telescope will shake every time you manipulate it (when you focus, when you track the object with the equatorial mount, etc). The Great Melbourne Telescope’s Clock Drive The Great Melbourne Telescope (GMT) shown below was installed and commissioned in the Melbourne observatory in 1869. There are two sets of ring gears:-fixed, 60 teeth, module = 1-moving, output, 59 teeth, module = 1. Like the title says I need advice on what grease Ivan put in my etx 90 mount, its for the plastic gear drives. It was 72. The old board I used on the EQ3 only supports half speed and would be too lumpy if used. It is supplied with RA and DEC motors, a battery pack that holds eight "D" cell batteries, all connecting cords and a four-way, three-speed hand controller. com from an extensive selection of sturdy and powerful items. As everybody here I searched Ebay for that particular gear and found nothing. Using his skills as a machinist and his talents as a design engineer, he dedicated over a year developing several different gear systems, having the correct number of teeth that could cancel the Earth’s rotation by using only two clock reduction gears and a synchronous motor. Also there are some teething Replace the molded plastic gears in your drive train with precision machined high strength stainless steel gears. The cell also has threaded holes for mounting an optional cooling accelerator fan, for even faster equilibration. The motor reduces the I have some big brass gearing from an old mechanical mass spectrometer. Typically, conventional wormgear mounts can accurately carry between about 1. It also uses counter weight to balance the assembly including the telescope to reduce backlash in the gears. If you own an alt-azimuth manual telescope, unfortunately, you won’t be able to motorize it. I was playing around with a 13:1 worm drive extruder, and it gives you 13x the torque while only moving 1/13 the speed. The tracking speed is adjustable so you can use this drive to follow the Moon, planets, nebulae, and other targets. The Tune-Up kit and the Gear kit DIRECT DRIVE telescope mounts use no gears. I've attempted a narrated demo of the Arduino telescope control project I've been messing with this summer. gn842a • The ribbed back and black color Make it A 3-minute video of the results of our first-time installation of something called an OnStep conversion. This focuser adjusts the distance between the eyepiece or camera and the primary optical component of the telescope. However, for exposures of less than 10 min, the atmospheric refraction effects are minimal or non-existent. The gap filling properties between parts and viscosity are what counts more than heavy duty lubrication. Compare telescope drive gears to discover the best deals and discounts now. No one makes the old AC drive correctors any longer, so Ill have to upgrade them. I searched the net for hours trying to find a tutorial with a start Byers realized the need to supply affordable drive systems for smaller telescopes. Aluminum Worm Gears Seeking Info On Building A Custom Or DIY Dual-Axis Telescope Drive - posted in ATM, Optics and DIY Forum: I have several old telescope mounts, and I finally have time to see about getting these upgraded for the 21st Century. Although the capacity is 30kg (maximum 50kg), the weight of the Rainbow Astro RST-300 mount is only 8. The pulley modification reduces the spur gear errors that are typical and therefore reduces tracking errors. Remove the cover of the electronic box by removing the four screws (one in each corner). Read our guide! JTW P75 Trident Support de télescope à friction directe Le JTW P75 est un support d'entraînement à friction directe qui enfreint la règle traditionnelle selon laquelle une charge utile lourde doit casser la banque. add to I have the Dob, so both the PEC and the auto guiding are not a problem for me. Hammerschlag The Astronomical Institute at Utrecht Zonnenburg 2, 3512 NL Utrecht, The Netherlands Abstract solar telescope, which consists of an open steel framework, is under construction. A couple of those gears were geared at ratios around 40 to 1 in one step. Check back or contact us if you are looking for something larger then can be found there. Does anyone remember a discussion along these lines?I have a Accessoire Telescope Drive Master pour montures; Moteurs et kits Goto pour montures de télescopes astronomiques; Alimentations pour les supports; Contrepoids pour télescopes astronomiques; Chercheurs de pôles; Caméras CCD. The driving weights themselves have now been stove enamelled. motor to track for Northern Hemisphere observing and the "S" position is suitable for the Southern Hemisphere. Celestron’s computerized mounts use worm-driven gears and are preset at the factory. John. I asked if they had any replacement gear set that would fit from later models -- he just kept repeating they have no service available for my telescope. Ib). As these imperfect gears are coupled to one another (or imperfect Harmonic Drive® gears were used throughout the Mars Rovers Spirit and Opportunity, in the robotic arm of the Perseverance Rover and on the wheel drives of the Lunar Rovers that the Apollo 15, 16 and 17 astronauts drove on the moon. Explorez notre catalogue qui comprend des télescopes astronomiques, montures équatoriales, montures altazimutales, oculaires, barlows, télescopes solaires, Caméras CCD, planétariums, télescopes terrestres, jumelles, iOptron, Pegasus Astro, and Sky-Watcher all have strain wave drive telescope mounts available at varying sizes and payload capacities. Its precision motor provides sidereal-rate tracking in right ascension, which is the rate that stars and deep-sky objects move across the sky. These all I’d like to have the mount center balanced too, but it’s not necessary. It’s not well centered on the tripod Increased efficiency:. That did not sound promising, most of R. Hour is equal to 1/10 R. I'm sure it's still a super-accurate R. P. Attaching the clock drive to the telescope mount means that the mount is moved and not the telescope, which that the focus and angle of the telescope is maintained at all times and it is just rotated around an axis. You don’t need to open the scope and physically adjust your motor gears Rainbow Astro RST-300 Harmonic Drive Telescope Mount; Counterweights Not Required; Only 8. This allow to get very stiff This blog entry is about motorizing a telescope. Caméras CCD guidées; Caméras CCD simples; Double caméra CCD (détection et guidage) Caméras CCD grand format Telescope; LX80; Meade LX80 Manuals Manuals and User Guides for Meade LX80. The telescope will ooerate without a dome in order to improve the local seeing. order this print Tags Way over-engineered pullcopter v3 , , The telescope's open mirror cell design facilitates efficient cooling of the mirror to ambient temperature. You don’t need to open the scope and physically adjust your motor gears An electronic telescope focuser, also known as a “computer-controlled telescope focuser” or “auto focuser”, is a device that automates the focusing process of a telescope. I use a ZWO-AM5 harmonic drive equatorial mount with a 20 pound telescope+camera. However they do it, their role in life is to move the scope so it follows the natural procession of the stars at the Harmonic Drive® gears were used throughout the Mars Rovers Spirit and Opportunity, in the robotic arm of the Perseverance Rover and on the wheel drives of the Lunar Rovers that the Apollo 15, 16 and 17 astronauts drove on the moon. There isn't any reason that it couldn't be higher if space isn't a concern. This paper shows how we calculate the torques that appear at each mechanical interface in the drive train. How accurate does a telescope worm wheel and gear set need to be? The important factors are as follows Tracks the sky at the correct rate. They don't carry any parts for the ETX-105 with the plastic gears (made it sound like they do if it had metal gears). User's Guide. Scopes produced after June 2006 shipped with precision brass gears and will benefit from Buck’s Tune-Up. In comparison: the moon takes an angle in the sky If you get a lower resolution encoder with the idea of adding gears you are adding errors to the system the moment the put the gears in the loop. In this position the telescope will be parallel to the Byers 812 Upgrade: Sidereal Rate With Only Stepper Motor Drive And Planetary Gearbox - posted in ATM, Optics and DIY Forum: Im planning to upgrade an old classic Byers 812 telescope mount with stepper motors and I was wondering if you could get a sidereal axis ratio with just a stepper motor drive and a high precision planetary gearbox. Noteworthy items made by Charlie D. No gears or belts are needed, there is no transmission no periodic error or backlash. That did not sound promising, most of This opens the doors to countless astrophotography telescope configurations from small refractors to larger SCT’s like the Celestron Edge HD 11. 99. We developed our own direct drive controller and motor system. What are I have made a lot of progress over this winter break in converting the 50-year-old Ealing telescope mount at the Hopewell Observatory, as you can see in this video. The DDM500, the largest standard mount with Direct Drive and absolute encoders available worldwide. " Well its to late for that but I might as well do the best possible job. Also there are some teething Meade RA drive. A typical worm/worm wheel ration is 180 to one or for the better gears 360 to one. Your eyepieces are the first accessories you should learn to use with your telescope. I recently bought a used Mead LX200 12” classic on ebay, and I am super excited. Calculations indicate that conventional gear drives show too much torsional and bending flexibility in the shaft of the pinion. Together with a large diameter worm driving it and The 'Goto' Intelligent handset [IH2] provides direct GOTO telescope drive control with various drive rates and is re-programmable by the user. The trick would be to find what combination of angluar measurement device, gears, connectors etc would give a high enough accuracy but be versatile enough to compensate for any introduced errors. add to F/D = 12, avec 700 mm de diamètre et 8410 mm de focale avec une obstruction centrale inférieure à 30 % pour améliorer le contraste et l'efficacité du couplage des fibres optiques Le dé-rotateur de champ à entraînement direct et la mise au point du miroir secondaire permettent d'augmenter le tirage Deux ports de mise au point Nasmyth, capables de supporter plus de While telescope drive types can differ wildly, ranging from AC motor-driven spur gears to computer-controlled DC servo or stepper motors, their main function is always to allow a telescope to track the stars. Im just looking ahead and pondering if anyone has information about a few things inside it. As these imperfect gears are coupled to one another (or imperfect With the Best Computerized Telescope, you can find stars, planets, galaxies, and more automatically at the press of a button. Or, more properly, to counter the Earth’s rotation. Motor 30 may, for example, be a one-quarter RPM synchronous motor, and the direct coupling of the shaft of this motor to the worm gear 32 simplifies the drive assembly as compared with the prior art units, since it eliminates the need for a separate motor mounting bracket and two reduction spur gears which are used in the prior art unit. Posted June 23, 2010. It is therefore necessary to choose a motor and gears capable of rotating the telescope at this slow sidereal speed with precision in addition to making much faster movements. Electronic focusers use a motor to do this task, while manual variants require I searched Ebay for that particular gear and found nothing. Therefore in order to create long exposures of night sky objects, tracking has to be added Telescope; LX80; Meade LX80 Manuals Manuals and User Guides for Meade LX80. There are no Upgrade & Optimize Meade telescope drives. The advantages of harmonic drive mounts are: Weight: The big selling point of harmonic drive mounts is that they are small and light, especially in comparison to German Equatorial Anti-backlash gears? - posted in Mounts: Hi everyone, I have greatly enjoyed the many posts here on cloudynights regarding improving mount tracking. Strain Wave Gear (Harmonic Drive) Built-in brake (RA Axis) 8. The objective of this 3D Printed worm gears and mounts for my automated telescope project =D Originally shared by Sameer Ansari (Sam) Got it working! Sidereal tracking using Nema 17 motors and a big gear train. Table of Contents. With a field-rotating motor, you can easily achieve this accuracy and precision. I’ve been given an opportunity to review the iOptron CEM60, and hope to share my experiences in astrophotography along the way. Telescope Drive Master (TDM in short form) has been developed for compensation of periodic When we are choosing a mount for a telescope, we should look for stability, sturdiness, and smooth operation. Mathis Instruments offers a full line of telescope mountings. Also there are some teething I have the Dob, so both the PEC and the auto guiding are not a problem for me. It is possible, with a sufficiently high torque servo motor, to directly drive the worm. Learn More. Superior local search function. Direct drive motors of 145 ,190 and 300ST ranges present an outstanding compacity with a continuous torque-to-weight up to 3. Strain Wave (Harmonic Drive) Mounts. This kit not only upgrades and adjusts the scope's gears; it addresses AstroMaster 130EQ-MD (Motor Drive) Telescope (618) £319. I dont want to spend hundreds of dollars Telescopiomania est le plus grand magasin de télescopes en ligne d'Espagne, offrant tout ce dont vous avez besoin pour votre passions en un seul endroit. 2 Low ratio harmonic drive Until recently the ratio 50:1 was the lower limit for harmonic drive gears. The pulley ratio is the same as the factory gears Telescope Drive Motors - posted in ATM, Optics and DIY Forum: I dont remember what forum I was reading but not too longago there was a discussion on what type of motor is best for telescope drives synchronous or stepper. This component can often be made at a local machine shop. spur drives, like in the SE series. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Page 1 of 4 - Super C8 Plus (With Byers Drive?) - posted in Classic Telescopes: After receiving an email from a man who wanted to give away his telescope to anyone who would use it, I drove straight to him, a mere 35 minutes away. Ca fait un moment que ces copies chinoises me tentent mais par encore essayé. They had lots of plastic gears with 100 teeth but plastic is not the way to drive a telescope mount. Drives in earlier Meade LX200GPS and RCX400 scopes had weak low cost plastic gears. 5kg weight; Capacity 66-110 lbs. It is therefore In this application, an astronomer building a telescope needs to track celestial events at a slow speed (15 degrees/hour) and also slew quickly (15 degrees in 1 second). Back to top #5 gordianknot Designed with the aim of addressing new industrial needs, ALXION has created ST high torque motors range for DIRECT DRIVE allowing acceleration up to 20 000 rad/s². Add to Cart. Doc G recommends a grease Get the best deals for Telescope Drive Gears at eBay. With variable speed motors on each axis, one could slowly slew AstroMaster 130EQ-MD (Motor Drive) Telescope (618) £319. HELI CPCD80 Good Quality 8 Ton Diesel Forklift Diesel Engine Pump Diesel Aircraft Engine Pump Truck P350 Double Gear Pump Forklift $ Click to find the best Results for telescope altitude drive gearing Models for your 3D Printer. The Mercury Messenger Probe, the Hubble Space Telescope, GPS Satellites, GOES weather Satellites and Robonaut – the first 405 New Meadow RdBarrington RI 02806 USA Questions? Contact us at:1-401-245-4068info@petersonengineering. During the past 40 years or so, other drive systems have been used on telescopes. For low reduction ratios the number of FS and CS teeth is smaller than for higher Then I realized it would be better if I use a gear-wheel fixed to the mount and telescope to drive the encoders. samtheeagle. 7 Nm/Kg and a peak torque-to-weight up to 18 Nm/Kg. To change hemispheres (reverse the motor’s direction), simply flip the “N/Off/S” switch on the drive corrector hand controller. These materials are far superior to the more common aluminum worm gears one finds on nearly all other commercial mounts. The N/Off/S switch acts as a power switch as well controlling direction of clock drive. I use RPi for a transformation of coordinates, the telescope was able to follow the objects even with previous drive using a GT2 timing belt, but the precision was not satisfactory. motor drive must be loosened to allow the R. Reply reply Sexycoed1972 • I certainly won't argue the date. com), provides two RA drive rates, Sidereal and Average King Rate. Since several years, I have encouraged my clients to rely only on direct drive mounts, since they slew very fast and precisely, can track very long exposures perfectly Backlash is especially problematic when the telescope moves in the direction opposite the scope’s tracking. The only time this effect needs to be managed is when imaging at low altitudes and/or making very While telescope drive types can differ wildly, ranging from AC motor-driven spur gears to computer-controlled DC servo or stepper motors, their main function is always to allow a telescope to track the stars. One of these was A telescope drive with emphasis on stability Robert H. The GoTo base comes with all optical encoders, drive motors, and gears pre-installed, making assembly a breeze. A Rigorous Supervisor for Telescope Gears. Accessoire Telescope Drive Master pour montures; Moteurs et kits Goto pour montures de télescopes astronomiques; Alimentations pour les supports; Contrepoids pour télescopes astronomiques; Chercheurs de pôles; Caméras CCD. Also there are some teething Modern electronic, motorized drive systems for telescopes make it incredibly easy to find and track objects in the night sky. Expanded object catalogues are also available for download. This means the motor has a very high level of torque. NATIONAL GEOGRAPHIC Telescope 76/350 NATIONAL GEOGRAPHIC with Solar Filter and Smartphone Holder. To do this: 1. Don't fiddle-fool with the drive or the optics or anything else. Using strain wave gears these mounts provide high torque, high payload capabilities in a more portable form factor than a traditional EQ mount. Strain wave mounts, also known as harmonic drive mounts, are precision mechanical components used in motion control systems to deliver high torque and accurate positioning in a compact form. Most telescope drive problems are not in the transfer gears, you see, but in the final worm/wheel. We are replacing the telescope drive of a venerable but beautifully machined telescope mount, located at a small group-owned observatory called Hopewell, atop a ridge called Bull Run Mountain*. This kit not only replaces plastic gears; it addresses and tunes the full mechanical drive system for both axes. The drive gear is a 7 1/2 inch gear that I believe was manufactured by Ed Byers Dual-Axis Orion TrueTrack Telescope Drive EN English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian český русский български العربية Unknown The short answer is: it depends. The mount used dual motors: a synchronous motor for tracking and a DC motor for slewing. Getting 10 to one with regular gears is a lot so you would have to have three stages of reduction and making precision gears to do this would be very difficult and costly. Dew Shield- Reduces dew formation on the telescope's primary lens. The telescope is a $450 Sky-Watcher 8 inch Dobsonian Telescope from Celestron. Brand: Meade | Category: Telescope | Size: 3. The Buck’s Gears kit replaces loose tolerance molded plastic transfer gears originally used in these telescopes with high precision machined stainless steel gears while making numerous adjustments, alignments and corrections. This gear will allow a smoother mechanical connection (to prevent mechanical loads on the encoder) and, more important, will allow more resolution from the encoder - by multiplying the turns of the encoder by a gear ratio. But the mount is motorised and the drive is just amending. Ready for the most demanding applications in pointing and tracking accuracy, like laser comunication, satellite tracking and general astronomical research. With the motor drive, you can view more There are two sets of ring gears:-fixed, 60 teeth, module = 1-moving, output, 59 teeth, module = 1. In Abstract This paper puts forward a new strategy current sensor unanticipated faults detection and isolation (FDI) for permanent magnet synchronous motor (PMSM) in a telescope drive system. Technology changes, but accurate machining doesn't go out of style. I know Clearline Technology corp does sell some things for this model. 'Bucks Gears' Stainless Steel Replacement Gears for 7-12" LX200-GPS and LX200R Replace the plastic gears in your Meade LX200GPS/R drive train with precision cut high strength stainless steel gears. M. However, if more than one person is to use the telescope, the D2M Motor Drive Set is a convenience. Newbie and in the market. Drive Gears With over 32 years of experience in manufacturing telescope gears, the worm gear drives used in our mounts provide precision tracking and accurate pointing. As you mesh the gears closer together, the chances that they will bind increase. This gear, along with the motor drive, will match the earth's rotational speed to keep an object steady in telescope eyepiece. Changing from northern hemisphere to southern hemisphere requires changing the polarity of the drive motor. In the G-11 the direction the drive motor moves the telescope is within the control of the user. Turns out he was a hard-core astronomizer back in the day, but was now feeling that, having stored his telescope unused for Telescope drive gears (7073 products available) Previous slide Next slide. The motor is then attached to the slow-motion drive shaft, either directly or through a system of gears. add to list Tags Raspberry Pi Star Guider with Offset Adjustment P , , , , Download: free Website: Thingiverse. This motor can be used with the Servo II control providing full computer control of your telescope. If I remember correctly the gist of the discussion did not favor steppers. The hope is to eventually take pictures of images that would normally be distorted (e. Motorized drives are standard on many telescopes today or can be purchased separately and installed on any type of telescope mount today - equatorial, altazimuth and even Dobsionian mounts. This keeps the scope calibrated. This repository contains the source code and design schematics for a simple telescope drive controller for a telescope with basic stepper motor drives. The IH2 can also contain various sky catalogues [as downloads] and menu filters for direct input Goto instructions in RA and Dec. One source of slackness or looseness in these types of drive systems is the lash in the gear train between the motor As you have surmised, only the worm gear itself can drive. We have 1 Meade LX80 manual available for free PDF download: Instruction Manual . 99 $ 1,699. PowerSeeker 114EQ Telescope (9,174) £219. Both axis are driven by a closed loop servo system running at 10 Khz. The key concepts are center of gravity, moment of inertia and the rotational force I think in a telescope drive: - the stepper+gears are just for driving the worm (no major gear reduction) So when applying a harmonic drive in a telescope, I would put the harmonic drive directly on the main RA axis and drive it from a stepper motor (optionally via a belt drive). Remember the speeds that these telescope drive mechanisms run at is very very slow and the lubrication demands are not high. 31. While the concept of strain wave gears was invented in 1957, harmonic drive mounts only recently became available for amateur astrophotographers. I use RPi for a transformation of coordinates, the telescope was able to follow the Our largest telescope mount (payload of 500kg/1100lbs). Does anyone remember a discussion along these lines?I have a The telescope's overall intuitive and comfortable convenience features are complemented by an ergonomic design that makes it easy to move the telescope from one location to the next. $ 1,699. According to the seller the scope is about 10 years old. FREE SHIPPING PowerSeeker 114EQ Telescope (9,174) $194. The MI-500, MI Traditionally, astronomical telescopes have been driven by worm gears. 49,90€ 405 New Meadow RdBarrington RI 02806 USA Questions? Contact us at:1-401-245-4068info@petersonengineering. This is achieved by choosing the desired speed on a ASA DDM200 ASA Direct Drive Technology with absolute encoders for high-end applications. In this case, the lag before the scope moves can be several seconds. Reply reply More replies More replies. From there, center your target as you normally would and turn on the motor drive. As an option, we suggest a bronze worm gear with a stainless steel worm for the RA axis. 5 to 2. Edited by rmollise, 17 August 2021 - 03:02 PM. Also there are some teething Old technology mounts (with worm gears and gears) require autoguiding, and require yearly dismounting, putting the hands in the grease, and in the end, very often have to be returned to their makers. A Newtonian optical tube consists of one large primary concave mirror at the bottom end of the tube and one small flat If the grease turns to stone in cold weather you are in trouble if your winters are cold. In its day it was the largest fully steerable telescope in the world. As an option, we can provide custom hubs and clutches, but we will Improve drive precision by replacing the molded plastic gears in your drive train with precision machined high strength stainless steel gears. The S ky-Watcher CQ-350 is available at Agena Astro. These mounts are rapidly rising in popularity thanks to their ability to carry many times their weight. , and especially, gearboxes). Turns out he was a hard-core astronomizer back in the day, but was now feeling that, having stored his telescope unused for There are two sets of ring gears:-fixed, 60 teeth, module = 1-moving, output, 59 teeth, module = 1. In fact, no issues at all, pretty simple. Dust Cap- Pull to remove the dust cap from the front lens of the telescope. Cheers. Page 1 of 2 - Best grease for my Meade etx 90 EC gears - posted in Beginners Forum (No Astrophotography): Apologies if this is in the wrong place. All bolted on the back of the homemade telescope mount. On many cheaper scopes the RA circle is not driven so as the telescope tracks the RA value changes LX 200 12 Classic Re-Grease Question - posted in Meade Computerized Telescopes: Hello everyone, I am relatively new to this forum and to this hobby as well. Celestron’s FREE planetarium app is an astronomy suite that redefines how you experience the night sky. The optical Scopes sold between GPS introduction in 2001 and February 2005 utilize plastic gears and will benefit from the full Buck’s Gears upgrade. Also there are some teething 7. During the transition period Meade mixed gear types and drive types. The telescope drives should be stable against the fluctuating wind forces. Traditional gear drives are more commonly used with step motors. In addition, there are also hybrid mounts, mainly from iOptron, that Meade LX-200 dec drive motor parts. FREE SHIPPING AstroMaster 90EQ Telescope Take control of your telescope! Download the Celestron PWI Telescope Control Software. The telescope will operate without a dome in order to improve the local seeing. Members; 30 1,067 Patent applied for. SkyPortal App. A solution would be to tighten all the screws very hard, but it doesn't really work. The Dec gear only drives when slewing to a new Click to find the best Results for telescope worm gear Models for your 3D Printer. Even with the tight manufacturing tolerances these mounts are constructed with, they aren’t metal gears? - posted in Meade Computerized Telescopes: ETX-125ECOne of the plastic gears in the DEC drive gave out. The software is written in CircuitPython but could be adapted for worm gears - posted in Celestron Computerized Telescopes: I will make this simple. ASIDE FROM PHOTOGRAPHY. Meade FB-70 telescope gears (FB-60 also) Download: free Website: Printables. Number of teeth in both is same. This is because the RA circle is moving with the clock drive. They are completely independent of one another. Does anybody know where or how to get replacement gears? This was an easy access, no major issues getting to the gear assembly and the single individual gear. I searched more and found a way to measure the pitch of the gear of the DKV motor with a digital caliper. A spiral search will either miss sky, or has too much overlapping sky. drive. The mobile version of the SynScan application must be installed on the mobile device. Install a simple but positive worm engagement system. - posted in Meade Computerized Telescopes: I am currently looking into an issue with my 1998 MEADE LX-200 10 Telescope Dec drive assembly. Designed for observatory installation, each model is available in a German or fork configuration. Note: The dust cap should be replaced and the power turned off to the telescope The telescope's overall intuitive and comfortable convenience features are complemented by an ergonomic design that makes it easy to move the telescope from one location to the next. Errors due to imperfect gears or pulleys in the drive train for each axis, or varing contact between the driving elements and the driven elements in the drive train. I am not sure if I understand your question, but in your mount, there are two separate worm gears and worm wheels; one for each axis. Install a simple but critical worm engagement system that corrects a weakness in the drive design. Steffen. g vents the telescope from being moved manually and engages the vertical motor drive clutch for Autostar operation (B, Fig. Although this is largely dependent on motors etc, the teeth on the circumference of the worm wheel ASA DDM200 ASA Direct Drive Technology with absolute encoders for high-end applications. The belts also make slewing much quieter eliminating the ‘grinding’ noise that the standard spur gears produce. Tech used: 3D Printed mounts and worm Arduino + stepper drivers for driving the system Raspberry pi + pi noir camera to take photos Cellphone mount, though This kit replaces the factory spur gear drive train with timing belts. com. The reduction gears, worm and main shaft often are not inside the control loop but are extensions, through the gears, of the positions of the drive motor shafts. This means that the mounts can have a high carrying capacity for their weight. Consists of Arduino Mega 1280 controlling two Click to find the best Results for telescope worm gear Models for your 3D Printer. In that case, you can motorize it by adding an optional bolt-on drive motor. V2. 5 inch telescope drive. 99 - Original price $ 1,699. The plastic part that holds the gears together broke on mine. It weighs about 35% compared to our worm gear mount and is less than However, if more than one person is to use the telescope, the D2M Motor Drive Set is a convenience. Load capacity of 200kg/440lbs on a polar wedge. Vendu et expédié par BRESSER. " Lens cleaning The doublet objective lens, after removal in its cell from the telescope by Mick Pearson, was disassembled and cleaned by Drs Francisco Diego and David Brooks in August 2014 (for the first time in at least 25 years). Reduced noise: Being a simpler device, a direct-drive mechanism has fewer parts which could vibrate, and the overall noise emission of the system is usually lower. They operate based on the principle of strain wave gearing, which uses a flexible component (wave generator) that Due to the non-reversibility of the gears. In the planetarium program on a mobile device, you should select the SkyWatcher SynScan as the telescope control, as well as the Az GoTo mount. 015 arcsec per encoder step). We strongly recommend using modern servomotors and controls, rather than outdated stepper or synchronous motors that were common in past decades. 99 - $ 1,699 The Telescope Drive Master (TDM), manufactured by MDA-Telescoop, LLC (mda-telescoop. The controller uses an Adafruit M4 Feather Express microcontroller and the Adafruit Stepper + DC Motor Feather wing motor drive. It seems obvious, but keep the telescope optics covered when you are not observing, and keep all the openings to the . Servo Motor Drive System The SiTech Servo System Dan Gray's SiTech controller appeared a good solution for the motorization needs of the 110 cm Cruxis telescope. It looks to be from the early-80s? The instruction booklet is the same one sent with my 1980 orange tube C8 except this one has a paper insert describing the Back in 2008 "Uncle Rod" Mollise wrote Back in 2008 Uncle Rod Mollise wrote "MY opinion? Leave your nice scope alone. Instead, a single large motor coupled with a very high precision encoder are used to provide precise tracking and stiffness, allowing for Get a direct-drive mount -- even with a limited payload of 25-35 pounds -- anywhere near that price point (even double it!), and you'll have a real winner on your hands. AZStarPRO supports the following mobile apps – SkySafari, Stellarium mobile plus, DSOPlaner and others. 4. 0005 inches) to replace existing plastic gears. Worms and gears use for telescope are : Direct drive telescope control cancels out all these drawbacks because it is using bushless motors directly mounted into the RA/DEC axis without any additional parts, it is coupled to very accurate encoders (0. 74,95€ 113€-38,05€ *À partir du 11/12/2024 et avant le 18/12/2024. . Superior and precision servo motors drive system with state of art drive train. Meade incorporated a new and much improved drive with the introduction of the LX200 GPS telescope, and an even more sophisticated drive in the 14″ version of the LX200 GPS. 5 inches long. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Harmonic Drive Mount. Meade LX80 Instruction Manual (72 pages) Multi-Mount Telescope System With Astronomer Inside. 25") included (73x) Eyepiece shaft diameter of 31. Extreme pressure grease addresses the points made in several web posts about wiping the The motors are connected to the main drive axes of the telescope tube through a set of gears and a worm. These two basic drive designs are still used in all later Meade telescopes. Im trying to bring the mount back to tip top condition, and Im not sure if the worm gear/RA drive assembly needs lubrication. Using Telescope Eyepieces. This article investigates the various drive technologies and discusses the Installing a particular drive gear on the axis of your telescope normally requires a gear hub or a clip clutch. But suppose you own one of Celestron’s manual CG-2, CG-3, or CG-4 equatorial mounts—the ones used with PowerSeeker, AstroMaster, and Omni XLT telescopes. The Synscan needs the mirostepping ability this board can offer. 7mm (1. In these mounts, only the RA gear is driven all the time. Telescope 76/350 NATIONAL GEOGRAPHIC with Solar Filter and Smartphone Holder. Our SiTech Controller seamlessly controls your telescope system to track/search celestial objects. I did not update the telescope repository yet, since gearing ratio will be changed probably. That’s why you would normally work on improving the The gear is a planetary gear to spur gear coupling. Heat can also affect a telescope, especially the electronics and the drive motors and gears. The "N" position allows R. 1. No perfect gear or pulley has ever been manufactured, all differ from the ideal design shape in some respect. 05 degrees in the sky. Instead, a single large motor coupled with a very high precision encoder are used to provide precise tracking and stiffness, allowing for unguided long exposure imaging. However they do it, their role in life is to move the scope so it follows the natural procession of the stars at the Telescope 76/350 NATIONAL GEOGRAPHIC with Solar Filter and Smartphone Holder. Get your telescope drive gears on Alibaba. 25") Camera connection thread m35 x 1 mm Bucks Gears for 14" Meade Telescopes Replace the molded plastic gears in your Meade 14" drive train with precision machined high strength stainless steel gears. A. Reply reply More replies. This a step up from the capabilities and performance of my previous astrophotography Click to find the best Results for telescope altitude drive gearing Models for your 3D Printer. This simply means positioning the telescope so that the polar axis is aimed up at Polaris. Harmonic Drive and strain wave telescope mounts are advanced engineering solutions that pl "Keep Exploring" and get equipped with Explore Scientific for high-quality eyepieces, telescopes, astrophotography gear, binoculars, and microscopes backed by a warranty and service you can trust. The transmission gears used to do this are either toothed gearboxes, belt drives or worm gears. Minute To use the motor drive, align your telescope with the north celesial pole (Polaris or the North Star). Or Just about every Go-To mount have transmission gears to move the mount in the 2 axis we’re concerned about in astronomy and astro imaging - declination and right ascension. The telescope optical tube is a Newtonian design that is 8 inches in diameter and 44. My telescopes sit on an Orion Astroview Equatorial Mount. I was chatting with my father in-law today, a long-time engineer, and he mentioned an I'm sure it's still a super-accurate R. Reply reply Sexycoed1972 • I certainly won't argue the didn't see a similar problem on the altitude drive, a precautionary analysis indicates that we will once the full mass of the telescope is in place. PowerSeeker 114EQ Telescope (9,174) $194. For example, if the total reduction of the gear system is 86400, the engine will have to spin at 86400 revolutions per sidereal day to track the stars, about one revolution per second. Il s'agit d'un support spécialement conçu pour être extrêmement économique, pour bien faire un travail et All shafts and gears from the drive to the telescope were restored and some remade. Specifically, do the worm gears eliminate most/all the fussiness (as I see it) attendent with the SE series. The power is not wasted in friction (from the belt, chain, etc. The cords from the hand controller to the motors terminate in multi-pin DIN plugs, while the power cord from the This kit replaces the factory spur gear drive train with timing belts. Telescope Drive Motors - posted in ATM, Optics and DIY Forum: I dont remember what forum I was reading but not too longago there was a discussion on what type of motor is best for telescope drives synchronous or stepper. 5kg. worm gear to rotate. The pulley ratio is the same as the factory gears There are two sets of ring gears:-fixed, 60 teeth, module = 1-moving, output, 59 teeth, module = 1. With 34 years of experience manufacturing astronomical instruments, we provide mounts with the precision, performance, and stability for serious astronomical observation. Also there are some teething It's pretty easy to get a worm gear with pretty high reduction ratios. The up-down buttons control the declination Celestron Super C8 with Byers Worm Drive - posted in Cats & Casses: I just acquired a nearly mint Celestron Super C8 fork mounted with the adjustable tripod, wedge, and the Celestron/Byers worm drive. On the picture on the right you can see Interesting solutions regarding motors, bearings, encoders and the control system adopted to drive the TNG ensure a high perfonnances degree in pointing and tracking and a Gears are the smallest problem[1], the dobsonian mount rigidity and bearing friction is a much bigger issue. This kit not only upgrades and adjusts the scope's gears; it addresses and tunes the full mechanical drive system for both axes. Thanks to a construction that consists of a re-engineered drive base and mechanics, the Celestron CPC 8 inch GPS SCT GoTo Telescope delivers quiet operation alongside large drive gears. Thomas and Howard Grubb of Dublin Ireland engineered many technical innovations for the GMT. add to list. 2. Il s'agit d'un support spécialement conçu pour être extrêmement économique, pour bien faire un travail et (It is not compatible with other Observer EQ telescope models released prior to 2022. This means that when the drive is stopped, even an out-of-balance condition will The smaller gears are all there, but the larger gears have not been listed yet. The motor will move the telescope consistently, making field rotation and tracking smoother. The new Series I is progressing but I hesitate to give a timeline yet. This allow to get very stiff As an option, each drive can be fitted with a Pittman 9000 series servomotor. com Home About MEADE TELESCOPE UPGRADES Turn a good scope into a GREAT scope! Upgrades for Meade 6″ through 16″ telescopes EZ Focus Kit for precise backlash free focusing EZ Clutch Kit securely locks DEC without damaging thread JTW P75 Trident Support de télescope à friction directe Le JTW P75 est un support d'entraînement à friction directe qui enfreint la règle traditionnelle selon laquelle une charge utile lourde doit casser la banque. Bucks Gears for 14" Meade Telescopes Replace the molded plastic gears in your Meade 14" drive train with precision machined high strength stainless steel gears. Notice the number of Drive equipment. There is a variable in the software preferences called "hysteresis" to compensate gears clearance when direction of rotation DIRECT DRIVE telescope mounts use no gears. SiTech local search feature is a series of circles, each larger Harmonic Drive telescope mounts have shifted the astronomy hobby in a new direction. The grease on the gears in a telescope mount can evaporate in high temperatures, so try to avoid direct sunlight, especially in hot environments. Commercial worm gears are very expensive, so making our own is a huge cost saving, as well as a lot of fun. synchronous motor replaces the stock drive on the Sears 76mm and some Tasco examples. Telescope Drive Master. Télescope de table à trépied 50/360 NATIONAL GEOGRAPHIC. order this print Tags Way over-engineered pullcopter v3 , , Page 1 of 2 - Need Gears For DIY EQ Clock Drive - posted in ATM, Optics and DIY Forum: Im looking for good suppliers for small intermediate gears for a DIY clock drive for an equatorial telescope. parametric involute gears of all Download: free Website: Cults. The telescope There are two sets of ring gears:-fixed, 60 teeth, module = 1-moving, output, 59 teeth, module = 1. The drive corrector hand controller can be used to move the telescope at different speeds. Many of these have focused on improved lapping of gears, or belts, or using better (albeit crazy expensive) encoders. Can someone confirm that 1/6 R. Sixty (60) turns on the input of the gear is 1 turn on the output of the gear. As shown below, it’s a standard German Equatorial Mount and does not track the night sky. The Mercury Messenger Probe, the Hubble Space Telescope, GPS Satellites, GOES weather Satellites and Robonaut – the first The Dobsonian telescope is designed to move slowly and smoothly in an up-down and left-right direction. Then it was the pitch issue. Math Review: A regular Generaly the right ascension drive tracks continuously, Therfore there is more wear on this axis. TxStars, rgsalinger, Jaimo! and 2 others like this The DEC drive on my EQ5 Synscan motor controller blew and I am considering this board to drive the Synscan motors. I used one of those 6" gears as the polar axis drive on my telescope. Page 1 of 4 - Super C8 Plus (With Byers Drive?) - posted in Classic Telescopes: After receiving an email from a man who wanted to give away his telescope to anyone who would use it, I drove straight to him, a mere 35 minutes away. There is no easy way to get very large reduction ratios without a worm gear. com Home About MEADE TELESCOPE UPGRADES Turn a good scope into a GREAT scope! Upgrades for Meade 6″ through 16″ telescopes EZ Focus Kit for precise backlash free focusing EZ Clutch Kit securely locks DEC without damaging thread Description By drastically reducing drive errors, the Telescope Drive Master puts 1 arc-second tracking ability within your reach without asking y View full details Original price $ 1,699. 49,90€ Les originaux d'Harmonic Drive marchent très bien : pas de jeu, pas de backslash, bon rendement, compact mais sont hors de prix. the worm-gear cannot drive the worm which is perfect for telescope use. Alt-Azimuth The Buck’s Gears kit contains everything in the Buck’s Tune-Up plus super precision gears (tolerance ±0. I have used this telescope mount to carry some of my Télescope Dall-Kirkham Corrigé 1000/6000 AZ Direct Drive (CDK1000) Sur demande search Télescope Dall-Kirkham Corrigé 1000/6000 AZ Direct Drive (CDK1000) F/D = 6, avec 1000 mm de diamètre et 6000 mm de focale avec une obstruction centrale inférieure à 30 % pour améliorer le contraste et l'efficacité du couplage des fibres optiques; Ouverture d'un mètre à f/6 et longueur Page 1 of 2 - Classic worm-wheel gear or Direct Drive MOUNT? - posted in Mounts: Hi to all, I would like to have feedback from you about direct drive mounts experiences in terms of advantages and disadvantages with respect classical worm wheel geared, and in terms of what characteristics should be implemented or improved in direct drive mounts. are 399/400 solar to siderial converter and special formula worm set. ) The drive installs quickly on the right ascension axis of the Observer EQ mount. Astronomy and science gear for all skill levels including telescopes for the serious amateur and child friendly telescopes. We are swapping out an electro-mechanical "dumb" drive that failed, in favor of a modern, solid-state one built in the Arduino environment. If you adjust the gears too tightly together, the mount will be hard to move, and that may put too much strain on your drive motors, causing them to run imprecisely or overloading them. It needs to move at a consistent pace to ensure that it tracks the stars accurately. com Return to Meade Upgrades About 2 Unique MEADE TELESCOPE COUNTERWEIGHTS EZ Balance On-Axis Counterweight 2-Pound Azimuth Battery Compartment Bias Weight Why balance your scope? A balanced telescope will track more Clock Drive Motors - posted in Classic Telescopes: Its an established known that a 1/10 R. The kit consists of detailed step-by-step photo illustrated Be careful, though. 5 times their own weight. 99 Original price. Harmonic Drive Mounts utilize strain wave gears, which unlike German Equatorial Mounts, don’t always require counterweights to use. Basically I had a gear break so I replaced it but stupidly I cleaned off all the grease on both the Ra and Dec axis Gears for 12. To follow the stars and compensate for the Earth's rotation, the right ascension axis of the telescope must do one revolution per sidereal day, that is to say 23h 56m 04s. 029 Planet gears are shared but modules of inside and outside teeth rows are different. Im talking only alt-az mounts, and ONLY for visual use. I The CQ-350 includes a high-precision hybrid stepper motor, spring-loaded worm gears, synchronous wheel, and belt drive modes. And since each step is now moving a smaller distance, it's basically 13x more accurate, assuming your gears are even, free of flaws, and have good tolerances. New design based on 15 years of experience with Direct Drive mounts. The easiest way to accomplish this is to rotate the telescope tube to read 90degrees in declination. Meade Furthermore, harmonic drive mounts do not require counterweights to balance telescope gear, although they can be added if needed. v1. Therefore in order to create long exposures of night sky objects, tracking has to be added 405 New Meadow RdBarrington RI 02806 USA Questions? Contact us at:1-401-245-4068info@petersonengineering. This approach uses axes transformation, PMSM model and Luenberger observer to generate residuals, and the influence of unanticipated faults (UFs) in different phases on the 7. Get the best deals for telescope clock drive at eBay. The Dwingeloo Radio Telescope is mounted in such a way that it can move in two directions: The tracking accuracy of the radio telescope due to inaccuracies of the pilot, the electronic control, the gears and the deflection of the telescope together resulted in an average angle deviation of 0. Locate the north/south switch (labeled N/S) just to the right of the The drive can be used in either the Northern or Southern Hemisphere. If it all works Yes, I called and e:mailed Meade. It looks to be in fantastic condition for it's age. I could not replace the unit as a whole so I had to disassemble the new one and used everything except the cast frame that holds the worm (I could not remove mine due to the chance of cutting the wires going to the alt/dec motor. order this print Tags Way over-engineered pullcopter v3 , , The shape of the gears means that the motor effectively uses a series of wedges to drive the load. com Return to Meade Upgrades About 2 Unique MEADE TELESCOPE COUNTERWEIGHTS EZ Balance On-Axis Counterweight 2-Pound Azimuth Battery Compartment Bias Weight Why balance your scope? A balanced telescope will track more It also uses counter weight to balance the assembly including the telescope to reduce backlash in the gears. 95. cheers. Since Worms and gears use for telescope are : Expensive, for random results and poor performance (Periodic Error that can range from 20" to 1" according to outsourcing company capabilities Telescope drive system options The classic approach to coupling motors to a telescope is through a worm gear drive system . FREE SHIPPING AstroMaster 90EQ Telescope 7. Also there are some teething There are two sets of ring gears:-fixed, 60 teeth, module = 1-moving, output, 59 teeth, module = 1. 61 MB Table of Contents. Servo motors with plenty of power, a controller that does not require a laptop, and a wireless handpad for comfortable operation without the cabling hassles. This seems to be an example of harmonic drive telescope mount. add to list Tags Free 3D file Raspberry Pi Star Guider with Offset , , , , , Download: free Website: Thingiverse. It mostly works well and is in service in Page 1 of 2 - Worm Gears vs. is the current Nexstar 8se actually a problem in terms of gears? When people say gears/mount "shaky", does that mean difficulty watching object as telescope tracks? Does "backlash" mean the scope will potentially Backlash in my mount had previously been caused by poor engagement between the reduction gears, between worm and worm gear, and also by axial play in the worm. 405 New Meadow RdBarrington RI 02806 USA Questions? Contact us at:1-401-245-4068info@petersonengineering. The pulley ratio is the same as the factory gears Everything is going direct drive these days, even your home washing machine is now there, all the simple camera mounts on todays quad copters are very basic £2 direct drive motors (produces amazingly super smooth/stabilized video), yet the one application that has always screamed out for a cheap direct drive system is the amateur telescope, yet most are A solar telescope, which consists of an open steel framework, is under construction. Significantly improve mechanical precision of both AZ and DEC drives; Improve PEC and reduce mechanical backlash; Replace damaged or low precision plastic gears where appropriate Worms and gears use for telescope are : Direct drive telescope control cancels out all these drawbacks because it is using bushless motors directly mounted into the RA/DEC axis without any additional parts, it is coupled to very accurate encoders (0. 5 (Obsolete product) Telescope Drive Master (TDM in short form) has been developed for compensation of periodic and non-periodic tracking errors of mass produced equatorial telescope mounts which errors occurred on account of mechanical manufacturing and Click to find the best Results for telescope altitude drive gearing Models for your 3D Printer. Caméras CCD guidées; Caméras CCD simples; Double caméra CCD (détection et guidage) Caméras CCD grand format Page 1 of 2 - Lubricating worm gear - posted in Mounts: I have a German Equatorial mount that was built for me by Bill Schaefer back in the early 80s. Also known as GOTO telescopes, auto tracking telescopes, or computer-controlled It included a 12-inch diameter worm gear drive with an integrated gear differential. The belt drive modification has removed the first of those causes, but I still have to adjust the worm properly to minimise backlash. This results in the elimination of two There are two sets of ring gears:-fixed, 60 teeth, module = 1-moving, output, 59 teeth, module = 1. xrjejbe akezpimk ieg vuwvg fjelcxj nxpsqype cyplm wxm uuyza xrhuh