Diy harmonic drive 6. Do you have any additional detail on the setup you did for testing with the laser? I will order a collection of parts. Thread starter pucho812; Start date Jul 8, 2011; odd, even etc. Click to find the best Results for harmonic drive mount Models for your 3D Printer. The Harmonic Drives might take a while to ship from China, so order those asap; I used sendcutsend. These was fabricated for me by a CNC shop in China. In this lesson, Ian Equatorial Harmonic Drive (Strain Wave) Go-To, computerized telescope mount head. Keen-One Harmonic Drive EQ Mount. So (not counting the countless iterations of 3D printing and design to get the mechanical parts to fit properly) the material cost is in the $800-900 range including the OnStep GoTo controller. 2 A, voltage: DC 24V, ratio: 30:1, backlash: 2 arcmin, step angle: 0. 4mo. 06 degree, protection level: IP40, advised HarmonicDrive gears are highly expensive but worth it pieces of mechanical engineering akin to jewelry making. I think 1:100 will be enough. S235 steel to hold the bearings. Simple DIY Harmonic drive equatorial motorised telescope mount | Download free 3D printable STL models. I have made a simple control board with 659 downloads · 3 years ago · DIY 3D Printable Harmonic Drive. Add a wedge to Page 4 of 12 - DIY 3d printed harmonic drive mount - posted in ATM, Optics and DIY Forum: Any thoughts on whether these print settings will be sufficiently strong? Filament: PETG-CF Nozzle: 0. 48mm Line width: 0. First mod is using a 30:1 harmonic gearbox for the z axis. 5. I explain what these things are, show my process, develop, The Pacific Mount is a DIY project designed to provide a stable and precise platform for tracking celestial objects. Joined Oct 4, 2004 Messages 16,002 Location third stone from the sun. Finally recently I found some 200:1 harmonic drives. 25 5:33pm; DIY harmonic drive with Onstep v4 pro + asiair - help to point me in the right direction! askarv. It’s another equatorial mount I built with a belt drive (1:4) + harmonic reducers (HBK 17 - 1:100) that I planned to make it out of CNC-milled DIY ALT/AZ Harmonic Drive Mount - posted in ATM, Optics and DIY Forum: Hi All, Just wanted to share a simple ALT/AZ Harmonic Drive mount that I am currently finishing up. The Doughty drive is great, but I'd like to be able to use a larger motor. For compactness, I went for one of their CSD units (CSD-25-100-2A-GR-SP) which has an overall length of just 17mm and an OD of 85mm. main. There is more about the motor than the gearbox. Again, that’s the same efficiency of around 65%. 3D Models Learning Physics & Astronomy. I'm considering building my own b/c axis. A hall sensor is place, so it can detect whether the magnetic field is This is a harmonic drive. com/en/3d-model/tool/3d-pr DIY Harmonic Drive Mount - 3D Printing | Carbon Fiber | Free CAD Downloads - posted in ATM, Optics and DIY Forum: Hi guys Happy to share with you my Harmonic Drive mount I designed and built. This 3D printed harmonic drive introduces a compliant mechanism to to make a more compact design. The cost comes with the bearings and flexible component. Now it is time to de DIY Harmonic Drive Equatorial Mount. This type of gearbox is one of the most used in industrial robots. 10000+ "harmonic drive mount" printable 3D Models. Wind Turbine. But I do have a few questions and suggestions: Documentation / Communication / Collaboration I The mount is made of 4 and 5mm iron plate, welded, total weight is 5. Seems that the links in the original DIY post, reference a Russian aliexpress site that I cannot order from. I use CSF 25 1:160 harmonic drive for RA and CSF 20 1:120 for DEC as the main gear. However, I have quite a few questions. By the time I added the off axis guider, the filter wheel, focuser, and finally a Not sure if it was already posted. buymeacoffee. The mount is designed to be Continue reading “A DIY Equatorial Mount Using Harmonic Drives” → Posted in Space Tagged astrophotography , equatorial tracking , harmonic drive , NEMA-17 , onstep , Teensy 4. I forgot i had to add one plate with 2mm thick . Is this a case of just getting the wrong drive? Or something else? I would hate to have to re-order these drives. This offer includes 3DEXPERIENCE SOLIDWORKS Professional, The harmonic drive gave exactly the same result of 32N at a distance of 15cm, or 4. Parts I bought from Amazon:- a4988 drivers with CNC shield for arduino- 4 x 608ZZ bearings- 1 x MR115-2RS b waveform is the 3rd harmonic, a 250 Hz (5 x 50 Hz) waveform is the 5th harmonic, a 350 Hz (7 x 50 Hz) is the 7th harmonic and so on. harmonicdrive. 8kg. Das "Originale" Harmonic Drive Getriebe der Keen-One EQ (oder auch der HrEM) besteht aus einer I started on the frame that holds the main drive last night. Reese Abouelnasr, a Mechatronics Engineer with Harmonic Drive, answers a few questions about the latest develop-ments in actuators and the design or engineering challenges these devices can help solve in robotics. The most common type, also needs a flexible part. They don’t exist. Yes, it perfectly matches the color of my existing ZWO cameras (and ASIAIR Plus), but do I really need a tracking telescope mount that doesn’t require a counterweight?. I have already acquired some fairly beefy used Harmonic drives for the 4th and 5th axis and I am having trouble figuring out if it is necessary to incorporate a holding brake. The original specified drive is: Now, it would seem to me that the wrong one does not have adequate support but I do not know. We will see. net/viewtopic. Uses servo42c belt driven 100 to 1 These are the parts that I designed in FreeCAD. They look very old, but they are smooth. And it only works with such motors. 4nozzle. DHEM (DIY Harmonic Equatorial Mount) is an equatorial mount for observation or astrophotography. This one has a reduction ratio of 1/100. 3, where only the 5th harmonic is shown. Finished up that part tonight. 8Nm of torque. The microcontroller is a DIY Harmonic Drive Equatorial Mount . Once assembled, refer to the Calibration Guide to fine-tune Se anche tu, come molti altri, ti sei imbattuto nelle montature con Harmonic Drive e ti stai chiedendo cosa è una montatura a moto armonico e perchè stanno iniziando ad attrarre l’attenzione degli astrofotografi beh, sei nel posto giusto. Probably the world's first equatorial mount with cycloidal drive. As an option, I will install a rigid coupling. It can function in both equatorial and alt-azimuth modes, making it suitable for both imaging and visual observation. 60: 1 Piece (MOQ) I started on the frame that holds the main drive last night. In this video we start out by gathering all the parts we need. Harmonic Drive EQ mount with automatic polar alignment - posted in ATM, Optics and DIY Forum: Hey guys, I am sharing my harmonic drive EQ mount project. The harmonic drive that I printed on the Ultimaker 2+ here in Ísafjörður didn't quite work, but Vineet was able to print a working unit on a DIY Harmonic Drive mount - Help? - posted in ATM, Optics and DIY Forum: Hi all, after recently watching a video on Youtube by Alan who built his own harmonic drive mount, Im thinking I might just do the same thing. Budget Friendly. pucho812 Well-known member. This one dives even deeper into the details for all the DIY astrophotography enthusiasts out there! 🔧 In this video, I cover: The Mount in Action – Watch it slew smoothly! OnStep I want a harmonic drive mount but can’t afford one. It was a challenging but incredibly rewarding experience. com/en/3d-model/t While they certainly aren't "cheap," they can be found used for pretty reasonable prices on eBay if you're patient. I don't have a Harmonic drive tests for PE - posted in ATM, Optics and DIY Forum: Preliminary results A couple of weeks ago I was able to spend a day with Dan Gray and Danial Wynn in the Sidereal Technologies shop testing a couple of Harmonic drives. The torque that must be applied to rotate the axis in the opposite direction exceeds the moment of This is a new iteration, therotetically better aligned, but still not perfectly centered, apparently, since there are still areas where the frictions ar a bi > Harmonic Drive Zoom: iOptron HAE69-EC Hybrid Harmonic Drive Equatorial GoTo Mount with iPolar £5,375. There are many designs on the internet, but most still use many steel bearings. DIY Astronomer; Browse. So I guess I’ll build my own. 8 NM Ratio 30:1 Rotary Gear Reducer. But the parts I printed are unlikely to be able to withstand a weight of more than 15 kilograms. They have huge load capacity and are preloaded so there's no race play at all and no need for a second supporting bearing like normal ball bearings so that will It was my plan to buy a second mount, but instead of buying, I decided to build one using harmonic drives. be/nxGgVqvXn8o?si=p8Odbk4-UKOdWs1rRemote Focuser - https://youtu. 3D Models Store Clubs Community Contests Brands Events Groups Education Prusa Eshop Prusa Blog. This is my attempt at coming up with a way of Today i gonna show you how to make a Harmonic drive gear for a 40 mm Maxon BLDC, which should be the axis of my Robot project. Static circular spline: 62 teeth Flex spline: 62 In this episode I start mocking up a prototype mount with wood so I don’t have to waste any aluminum. Reply reply Home; Popular; TOPICS. Inside there is a stepper motor with a 27:1 planetary gearbox. html?spm=a2g0o. com/library/diy-4th-5th-axis-with-harmonic-drive-units-1 Page 11 of 12 - DIY 3d printed harmonic drive mount - posted in ATM, Optics and DIY Forum: We hope. Strain wave gear 3D Model (Harmonic Drive) Model based on split circular spline for NEMA17 Stepper Motor with D-Cut axis. More about this Pin. The Harmonic Drive Reducer with Nema 17 Stepper Motor for DIY Robot or Lightweight Loading Rotary Platform. English en. Telescopes. Download. I had to remix the interior pieces to fit the shape of the motors from stepperonline. | Download free 3D printable STL models. As usual, the procedure involves using a laser mounted to the 580,354 active members* 11,316 visitors online* Register for free Login What is Cycloidal Drive? A cycloidal drive is a unique type of speed reducer which provides very high reduction ratio with compact but robust design. It works very well and it's very powerful. For this mod I used the galileo 2 z-drive f Page 13 of 13 - DIY 3d printed harmonic drive mount - posted in ATM, Optics and DIY Forum: 1. That is correct! カメラde遊ing ; 2023. For a few years I have looked on ebay for cheap harmonic drives. The principle of how the harmonic components are added to the fundamental current is shown in figure 1. This might be the best way to do it, but then would probably require a lot of tuning and buffering to get it to work. The flex gear is reasonably tender, if you stall the output shaft you could strip teeth off the flex gear, an expensive failure. 1-1. A harmonic has zero backlash because two opposite sides of the flex spline are ALWAYS meshed with the outer ring gear. io. Saves. As a challenge to myself, I decided to design a few of them from sc After messing around with various combinations of servos and gearboxes to drive it I have settled on a Mitsubishi MR-J2 200W brushless servo with a Bayside 10:1 gearbox. I'm concerned because they are oil bath type. The Sustainiac driver I'd like to add, that the harmonic drive should easily hold a static load 50+ kg as it worked in 5-axes milling machine similar to a robot's arm. Just a note: A drive pin on the face of any practical disk size would suffer from slippage. Every Day new 3D Models from all over the World. I I took my 3D printed harmonic drive from a previous video and a newly designed motherboard to build up the base of my new 6-axis robot arm. Pin is from. What I got was essential a box full of 3D printed parts for another mount and two semi finished 3D printed housings that had the harmonic drives and stepper motors already Re: DIY Harmonic Drive Thanks, I found the thread (which seems to be more than six years long). com for the aluminum and carbon fiber plate parts; You will need to make the round, aluminum “PLUG_BASE” part or source a machine shop to make that for you. Some of the DIY circuits have a harmonic mode that just flips the phase of the drive signal so that the fundamental is damped and the harmonics are driven. You can find lots of them on ebay. Thought it would be interesting here. Structurally, the whole thing is constructed from 10 mm thick aluminium plates that were cut with a waterjet and subsequently milled to finish. The test setup was on the axis of one of Dans direct Harmonic drives start at 50:1 with 100:1 being common. If that does not work I will use the SiTech to drive a couple small dc servo motors to and then use another encoder to drive the Mitsubishi servo drives through their pulse inputs The drive configuration is Harmonic drive -> friction drive for both axis RA Axis nema 17 100:1 harmonic reducer 50:1 firction drive . Servo Mount Gearheads. , Ltd. I may try direct driving the harmonic drive bypassing the 3:1 gearbox, I am pretty sure it will have enough torque. 6mm (CHT clone) Layer Height: 0. Ca fait un moment que ces copies chinoises me tentent mais par encore essayé. So the advantages are: zero backlash, high precision and high load. Detail: https://github. 2 A 1. Harmonic drives (aka strain wave drives) are pretty neat, working on the principle of a fixed, but circularly distorting ring gear that transmits torque from the inside surface to A harmonic drive reduces the RPMs of a motor output shaft and increases the torque proportionally. Because of the single stage reduction there's almost no tolerance/play between input and output shaft. The servo stepper settle down e diy harmonic oscillator? Post by djs » Tue May 22, 2018 1:45 am. A harmonic drive is a very simple gear reducer that lends itself well to 3D printing. It is all 1/2" aluminum. QM Harmonic Gear Box Stepper Motorhttps://www. Usually harmonics are calculated up to the 40 th or 50 order. Hello, i recently got a 4th Axis harmonic drive for my diy mill. Electronics and motors probably $200. Astronomy. The quite new technology, originating from robotics, finds its way more and more into astronomical mounts. Even if people point to cheap AM5/3 clones now available on Aliexpress, this is still significantly cheaper and also has many other benefits. The gear system consists of three main components: a wave generator, a flexible spline, and a circular spline. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Built with Onstep Harmonic drive #maxesp4 Jeff Nyman. com: https://how. This is made from extruded aluminum using a 3D printer for prototype and template production, a small drill press, a few taps, and some other other basic DIY Harmonic Drive Mounts. Would some one help me figure out if this would work? I figure the center piece goes into the piece on the right. Add in the cost of the aluminum stock, motors, electronics and you can make a harmonic drive mount for <$700. 3 RMS. printables. Maybe it would be better to buy than build. 5 NM Ratio 30:1 Rotary Gear Reducer. Last edited by drakke; 10-27-2015 at 09:17 AM . I use a magnetic strip, glued over about 180° on a disc on each axis. What harmonic drive specs do You don't need a flexible spline to make a harmonic drive. Most parts are waterjeted from 1/4 or 3/8 aluminum plates, then tapped & surface finished on a manual mill. This tracking mount follows the stars as they With that, Brocken can use a large power supply and allow the Nano to control a lBT2 H-bridge motor driver that handles up to 43A. Gaming. I suspect that the cheap Chinese harmonic drives have more in common with the smaller shaft output drives. Valheim; Genshin Impact; Minecraft; Pokimane; Halo Infinite; Call of Duty: Warzone; Path of Exile; Design a Cycloidal Drive How to Design a Cycloidal Drive Cycloidal drives are gear reducers which are utilized in mechanical systems, where large amount of reduction, accuracy, power density and virtually no backlash, is of great importance. Figuring out where to put the holes to match the existing accessories hole on the scope was kind of a pain, no documentation anywhere on the hole spacing and angle. Harmonic drives are special gearboxes with numerous benefits over traditional gearboxes, but they're expensive. com for the aluminum and carbon fiber plate parts; You will need to make the round, aluminum “PLUG_BASE” part or Printed with PLA,. The variations in drive radius [on the disk] would fight each other across the length of the drive pin or width of a drive wheel. Its powered by OnStep and has been working great, especially over the last few nights where we had really great seeing in SoCal. If you don’t want to spend the money you could have a go at building your own harmonic mount, as detailed in this video. My intention is to design a mount using steppers It’s a 150mm DIY 4th axis (based on a harmonic drive reduction) with an electromagnetic disk brake. Astrophilos introduces a DIY harmonic mount for astrophotography, costing only $399. Main Specs: rated current: 1. That’s similar to an 79cc internal combustion engine and is enough to pull a Dodge Charger across a flat surface. It came in 3 pieces and I put it together and did some testing. My 3rd prototype. com/nebulaphotos to save 10% off your first purchase of A DIY Equatorial Mount Using Harmonic Drives | Hackaday / Dean Wetherbee. The ZWO AM3 is a compact and highly portable harmonic drive mount designed for astrophotographers who need a lightweight tracking solution. A home built equatorial mount for my telescope built mostly recycled components I have had lying around. It might be possible to 3D Print it, but I’m not sure that will be strong enough. All Harmonic Drive mounts are GoTo mounts (automatic object positioning) and are mainly used in mobile astrophotography. 04. After that, a quick re-check of the tightness of the bolts in it, and This will drive another Bayside gearbox, this one 3:1 and then that will drive a 80:1 harmonic drive which will have the saddle for the telescope on it. Login. However 🚀 New Video in the Series! 🚀 Hey everyone! I'm excited to share the second video in my DIY Harmonic Mount series. I stumbled on this set. This gives me stupidly high resolution of 31,457,280 steps per rev. It's a different animal to the smaller harmonic drives that output via a small shaft. They give specs for various kinds of applied loads, so that may help you determine which size is sturdy enough to handle the loads you want to apply. フルDIYした機材で天体観測を楽しむことができたこと。 The product development and price reduction in Shenzhen is remarkable. Many thanks to this group. be/ The telescope I built in my last video was amazing, but the mount wasn't. *Partially 3D Printable. That’s right, 3DEXPERIENCE SOLIDWORKS for Makers is great for anyone learning the trade, making DIY projects, and more. DIY Harmonic Drive Equatorial Mount | Hackaday. The flex spline has a few less teeth (typically 2 less) than the outer gear. 15layer,. Diy harmonic drive mount . 3D Printed Harmonic Drive with a 35:1 gear ratio. Rashi Girdhar. 77 images, 0 comments Last upload: 11 May 2024 - 14:53 Lunt40mm_etalon_enclosure. First stage gear ratio is 1:27, and 1:100 on the second stage (the HD stage). Contribute to polvinc/DHEM development by creating an account on GitHub. 7f6a98DM98DMwx&algo_pvi How does a Harmonic Drive work, and just how much contact is there between the teeth of the splines? They’re great for rotary axes on multi-axis CNC machines - l'Harmonic Drive è estremamente compatto in rapporto alle riduzioni che consente di ottenere, nell'ordine del 100:1 - 200:1 in un solo stadio - è anche estremamente leggero in relazione alle coppie che è in grado di trasmettere - NON HA backlash, ovvero giochi interni. It is possible to use 3D prin This is part 2 of my series on converting my Harmonic Drive Telescope Mount to equatorial mode for long exposure astrophotography. productlist. The drive I purchased this time is SHD-11. The wave generator has an elliptical shape and consists of an elliptical hub and a special thin walled bearing which follows the elliptical shape of the hub. and proper installation of the motor drive system. Cheapest gear choice for a DIY harmonic mount? - posted in ATM, Optics and DIY Forum: So, Ive been building a little rig using a FYSetc E4 and its TMC2209 stepper drivers (Using 3 NEMA17s, 2 for slewing, 1 for focuser) and Im stumbling a bit with cost for the last ingredient here. see also https://forum. Drilling and tapping holes and beginning to assemble the mount. A hall sensor is place, so it can detect whether the magnetic field is present or not when rotating the axis. Contribute to Laplase555/Kenobi-S1---DIY-harmonic-Drive-mount development by creating an account on GitHub. zerspanungsbude. When you rotate the elliptical input, whether its two bearings or a custom made elliptical ball bearing, it constantly meshes the next Building a harmonic drive based EQ mount for AP - posted in ATM, Optics and DIY Forum: Trying to get back into the hobby, and Im wanting to take a swing at building a mount. The design uses two carbon Hello, I would like to present the latest addition to my workshop. It is based on the use of a harmonic reducer. com/store/group/Harmonic-Geared The harmonic reducer model chosen CSF-17-100-2UH is the same as Alan DIY mount. </p><p>I am probably just going to paint these. com/Laplase555/Kenobi-S1/blob/main/All_ ZWO AM3. Sky Images. currently its 3600:1 at full step and slew from east to west is taking around 2 minutes, too slow I think. But I do have a few questions and suggestions: Documentation / Communication / Collaboration I Page 5 of 9 - DIY 3d printed harmonic drive mount - posted in ATM, Optics and DIY Forum: I used the flexible coupling. A short demonstration of a 3D printed Equatorial mount with modified harmonic drive and OnStep For for more details, visit my website:https://astrophoto. 6Nm Had a few problemsNew harmonic drive on aliexpress- https://www. The mount is designed to be inexpensive in relation to its performance, transportable, with a Harmonic drives (aka strain wave drives) are pretty neat, working on the principle of a fixed, but circularly distorting ring gear that transmits torque from the inside surface to the I have always thought harmonic drives were amazing and almost seemed too good to be true. and maybe even variable slew rate, would be a great DIY project! Reply. The input of the harmonic drive is driven by a 4. DHEM (DIY Harmonic Equatorial Mount) is an equatorial mount for observation or astrophotography. I noticed, in Hi to everyone, this is the second video of a series about my DIY harmonic mount, here In this video, I cover: Mount in action Onstep Configuration Mount Page 4 of 4 - DIY Harmonic based Equatorial Mount - posted in ATM, Optics and DIY Forum: Best post Ive read in a while! What happened with it? Jump to content Sign In This was a long time ago, I remember buying the harmonic drive on ebay for $80 and now they are much more. Harmonic drives The harmonic drive was just cool enough and easy to design that i had to give it a shot. aliexpress. With improved design, portability, and ease of use, it offers a budget-friendly alternative to commercial mounts. The dovetail should be compatible with Losmandy type accessories. 5 Ive been curious About retrofitting this with onstep and a harmonic drive in ra and dec. I have casually observed a number of harmonic drive telescope mounts appear in the astrophotography market over the Harmonic Drive Reducer with Nema 17 (42mm) Stepper Motor, 1A 1. All right, so let’s take a look how it works now. The EQ mount weighs about 16lbs and can support 25lbs without This will drive another Bayside gearbox, this one 3:1 and then that will drive a 80:1 harmonic drive which will have the saddle for the telescope on it. I have used onstep on EQ 5 and EQ 4 before. If you buy the files, please take care to not post them online, as per the design license . Got the ZXS14 mount together, waiting on a vixen plate and clamp to come in to test that one. Firstly, how much weight can a harmonic drive plus a neema 17 stepper motor support without counterweights DIY 3d printed harmonic drive mount for astrophotography. I am unaware of any DIY setup that has normal+harmonic mix. The design of each of the two axes revolves (sorry!) around the use of a NEMA-17 stepper motor with a 27:1 planetary gearbox, driving into a harmonic reducer gearbox. It has an azi and alt motors for automatic polar alignment. Related interests. I'd also guess that they use aluminum gears. On the electronics side, a custom PCB was produced, with a pair of TMC2130-based This time, I’m showcasing Version 2 of my DIY Harmonic Mount—a compact, budget-friendly mount for astrophotography enthusiasts! 🔧 In this video, I cover: The redesigned, all-in-one enclosure How OnStep makes DIY mounts po Harmonic drives are ideal for things like robotics, rotational axes on CNC machines and telescope mounts. Starting the project to build a fourth axis, rotary table, using a harmonic drive. After a year with the Rainbow Astro RST-135E, how does it stack up? Find out what it's guiding capabilities and performance are like, if it's able to go ungu Page 6 of 12 - DIY 3d printed harmonic drive mount - posted in ATM, Optics and DIY Forum: I finally tested the mount in conjunction with Newton 150/750. This is an extension of that work. The stator ring has 68 teeth, the outp "Harmonic Drive" is a bit more of a buzz word so I go with thay. Part 1 - https://youtu. Uses servo42c belt driven 100 to 1 harmonic drives which are through hole so all cabling runs thr I have machined and anodised everything from the tripod up. These are the sort of bearings used in Harmonic gearboxes. DEC axis nema 17 30:1 harmonic reducer 40:1 friction drive . This type of gearbox only has a single reduction (in this case 2 because of the belt reduction) with a very high reduction ratio. Board containing this Pin. You stretch the flex spline so that it engages on opposite sides (typically) of the outer gear. Study. I scanned it in an hour and it looks like most of the designs are overly complex, heavy and expensive. And this is how the unit moves, after some 90 minutes of grinding. The plates The gearbox grinding away on the lathe, for settling everything into alignment inside. 9-1. PCD 35. Download: free Website: MyMiniFactory. Summer Tropical Print Button Up Top. 00 2 year warranty. Harmonic Drive mounts do not need to be balanced and can be used without counterweights. Home Industrial Equipment & Components Power Transmission Parts Speed Reducer; Harmonic Drive DIY US$278. Activity. co/2T1qKDDGrabcad - https://grabcad. The Nyx Tracker is a motorized barn door tracker used for astrophotography. Forums; Members; Gallery; Events; Blogs; Code of Conduct; Staff; Online Users; More . thingiverse. drawback is that the mount's accuracy is slightly less than the original version due to the decision to use a direct harmonic drive without any As if I didn't have enough projects going on all at once I have started yet another, an equatorial mount for my telescope. Check the how-to article here at HowToMechatronics. The drivers are #20 frame size (?) and 160:1 (well 161:1 mechanically). 8 lbs) CNC machined ; Unique friction brake to safely stop movement during a planned or unplanned power interruption; Go2Nova® hand controller with ~212,000 object database; 270 Second Gear Period; Dual saddle (Vixen and Losmandy-D styles) in this video I assemble, test, and break the first revision of my 3d printed harmonic drive. It works totaly fine but makes some strange knocking noise when spinning in one direction (clock wise @12sec in the video). I am mon First, I'd like to thank Howard and everyone who has developed onstep. Apparently, most of the internal misalignments have come into alignment now. RMS turned out to be at the level of 0. Main Specs: rated current: 1 A, voltage: DC 24V, ratio: 30:1, backlash: 2 arcmin, step angle: 0. 06 degree, protection level: IP40 I am currently finalizing a DIY harmonic drive mount and facing some issues with my planned home sensing. There would be simultaneous, multiple drive ratios depending entirely on the contact radius on the large disk. By following the instructions and utilizing the provided CAD files and documentation, you can build your own GEM. I purchased a fystec voron kit off aliexpress which I planing to build with some modifications. This drives the harmonic drive and gives me a I'm excited to share my latest project with you all: a DIY harmonic equatorial mount! Design and Construction: I designed and built everything from scratch. I do not think torque will be a problem depending on the torque limit (I am This is an eccentric solution for a regular Harmonic Drive gearing with circular splines z=40 and z=42. It is a very long video, sry fo variable harmonic drive discussion. In questo articolo scopriremo insieme le caratteristiche, i vantaggi e gli svantaggi delle montature a moto armonico questa ormai Compared to other DIY harmonic drive mounts, this is beautifully simple and straight forward in many ways. Fysetc E4 OnStepX with nema17 400step stepper motor 2023年3月17日 - 探索 Laifual Harmonic Drive 的图板“DIY Harmonic Drives”，Pinterest 上有 132 位用户关注了此图板。。查看更多关于 人 主题的点子。 You're not the first person to attempt a DIY harmonic drive (or to try TPU or any number of creative options for the flexible spline component), and there's a good reason why every knowledgeable person in this discussion is telling you this is a bad idea. Advanced harmonic drive technology; Payload capacity of 20 kg (44 lbs) with a mount weight of 5. lion I started on the frame that holds the main drive last night. They accept prototyping or 1 set M This is my 3D printed harmonic drive (strain wave gearbox). It will got up to 60degrees of tilt. SGL Responsive - v4 (Default Good tip from @markse68 This may not be the best way but my attempts I found if you just used a pointed tip directly on the insert it tended to get stuck inside the insert when you went to take the tip away and everything just I lied that there are mostly 3D printed parts. Guiding at a speed of For this fourth prototyping iteration the meshing principle is the same, but I introduced a slightly modified internal structure to accomodate:- sturdier bea Here’s a great CNC hack that adds a ton of functionality, a DIY rotary The 4th axis uses a 276oz-in stepper motor which is directly coupled to a Harmonic Drive Systems 11:1 planetary DIY Harmonic Equatorial Mount. Rebuilding 2 Yet another 3d printed Harmonic drive mount need some advice! - posted in ATM, Optics and DIY Forum: Hi everyone, Id like to share with you my latest project, which I worked on during the Christmas holidays. They will find a home eventually. All Messages By This Member #56153 Hello everyone! I have googled for hours and have finally come to a dead end as to how to get all these parts to work together. DIY 3D Printable Harmonic Drive. Cheap Casual Commuting Backpack. Travel Light. The rated torque for this model is 47Nm at 2000RPM, with a limit of 110Nm for repeated torque. The stretching mechanism, called the wave generator Finally it moves under it’s own power. Building my own telescope mount Les originaux d'Harmonic Drive marchent très bien : pas de jeu, pas de backslash, bon rendement, compact mais sont hors de prix. It’s a 150mm DIY 4th axis (based on a harmonic drive reduction) with an electromagnetic disk brake. Join the GrabCAD Community today to gain access and download! DIY harmonic Drive mount. If not, well try adding more via belt transmission. This extremely simple 35:1 reducer uses only solid gears. I am money grubbing scum so-https://www. I can't be sure without looking though. 8 kg (12. The gear ratio of the harmonic gearbox is 100:1. com/model/532653-compact Harmonic Drive Mounts are on the rise, due to their lightweight design, lack of counterweights, and improved connectivity as compared to classic German equatorial mounts. This is a powerful mount controller allowing you to interface with the mount physically via the display screen and simple cursor controls, or via a PC using USB or Bluetooth. H-alpha. I had the original piece the big harmonic drive mounted to as well as some of the aluminum for the base. Download this model on printables:https://www. Discs are mild steel machined on a lathe, honed with diamond file and treated with penetrol for rust prevention and better friction DIY Harmonic Drive Mount - posted in ATM, Optics and DIY Forum: I was able to buy and unfinished 3D printed harmonic drive based on the design by Laplase (who is also on this forum). Create. You don't have to worry about this part. Using OnStep's configurator spreadsheet, I chose to drive the harmonic gearbox with a planetary gearbox 17HS15-1584S-MG10, in order to achieve good tracking resolution, a good slew rate and a good number of steps/deg. Harmonic Drive develops and manufactures precision servo actuators, gearheads, and gear components and is known for commercial- I built a portable, lightweight, yet mighty equatorial mount with two HarmonicDrive gearboxes. be/UQDCAca4bSc?si=aHKAS6jGe173hgbIConsider joi DIY Harmonic Drive Equatorial Mount . [ZeroBacklash] created a little strain wave gearbox (harmonic drive) for when you want We would like to show you a description here but the site won’t allow us. 2. After getting and installing the new gears into the gearbox, it's time for a new backlash test. DIY harmonic drive mount using Terrans V4 PRO. 75N*m. Barn Door. These are well suited for applications where high torque density is of paramount importance. 65 kg (8 lbs) High Precision RA Encoder Included; CNC machined ; Unique friction brake to safely stop movement during a planned or unplanned power interruption; Dual saddle (Vixen and Losmandy-D styles) Large Binocular Mounting Now we start cutting aluminum using the dimensions I learned from the wood prototype. NyxTech - Affordable, Portable Astrophotography. In addition, these are in fact Harmonic Drive brand parts so it's still accurate. Its reduction ratio I am currently finalizing a DIY harmonic drive mount and facing some issues with my planned home sensing. Static circular spline: 90 teeth; Flex spline: 90 teeth; Dynamic circular spline: 92 teeth; Gear reduction ratio: 46:1. Despite its small size and low weight, the AM3 can handle moderate payloads and offers Simple DIY Harmonic drive equatorial motorised telescope mount | Download free 3D printable STL models. . By the time I added the off axis guider, the filter wheel, focuser, and finally a camera on the scope I lost a lot of sky due to everything hanging off the back. Getting closer to the finish line. Including: - STL CAD files - Component List (with link) YouTube full assembly video: The Home Shop Machinist & Machinist's Workshop Magazine's BBS The bearings on this beast are the size of marbles. 88mm (6 layers) Infill: Gyroid 30% Slicer: Cura With possibly a bit I found a micro harmonic drive that looks really interesting: Micromotion - micro Harmonic Drive Maybe a little too small. 56 reduction ratio 1:100 harmonic drive design simulation The ebay special harmonic drives are around $100 each, and the CNC machining is in the $500 range. 8 lbs) CNC machined ; Unique friction brake to safely stop movement during a planned or unplanned power interruption; 270 Second Gear Period; Dual saddle (vixen and Losmandy/D styles) Customer cable management system ready; Level and Go The GrabCAD Library offers millions of free CAD designs, CAD files, and 3D models. I was fascinated by this type of gearbox and always wanted to make one. Currently these have a tiny ra gear and a friction plastic bushing motorless dec. I created a proof-of-concept harmonic drive using 3D print See http://BrainRight. To too have been working on a similar project. 18 images, 0 comments Last upload: 27 Apr 2024 - 09:12 Lunt 40 Compression Tuning . The main thing for me is to make ServoCat work. 286 Pins. 8 lbs) CNC machined ; Unique friction brake to safely stop movement during a planned or unplanned power interruption; 270 Second Gear Period; Dual saddle (Vixen and Losmandy-D styles) Customer cable management system ready; Level and Go The ZWO AM5 is the astrophotography mount I didn’t think I needed. squarespace. It is not an easy process for someone without an engineering Actuators that are powerful, accurate, compact, and cheap are like unicorns. 4 degrees per second. Download this 3D Model for made by zerobacklash. Used OnStep, LSS 17 Harmonic Drives and QM stepper motors. Using a conventional brushed DC motor, this gearbox can produce about 3. Here is their web site. This should give higher resolution, no z droop, and no backlash to affect z hop and bedmesh moves. First night out was hanging around 1. It's easily capable of 10NM torque output and has surprisingly little backlash and deflection eve Hi to everyone, this is the first vide of a series about my DIY harmonic mount, here In this video, I cover: The redesigned, all-in-one enclosure How OnS DIY EQ Mount with Harmonic Drive - posted in ATM, Optics and DIY Forum: Im making this DIY eq mount built with harmonic drive gearboxes. Ive done plenty of research on it, but my god, the cost is unbelievable when Page 3 of 11 - DIY 3D Printed Full GoTo Star Tracker Mount - Powered by OnStep - posted in ATM, Optics and DIY Forum: So cool, Meercura!!! This can probably be my fault, the harmonic drive is highly dependent on If you follow the link to my web page there's more info about the harmonic drive, including a link to their "catalog" that has specifications for different models of gearboxes. netHarmonic Drive® strain wave gearing utilizes a unique operating principle which is ba This is original Cycloidal Drive Equatorial Mount. In the realm of affordability, the ZWO AM3 and the upcoming Sky-Watcher 100i (available from July 2024) stand out as the most budget-friendly harmonic drive mounts in 2024 DIY 3d printed harmonic Drive mount for astrophotography To the best performance, it is recommended to use the following gearboxes: RA axis: LHN-17-100 (low kinematic error) Harmonic Drive® strain Wave Gear Principle: http://www. Simulation gives me about 18lbs total Original Harmonic Drive video - https://youtu. If Exciting new harmonic drive mounts reviewed in a comparison shootout! Head to https://www. Is this something to worry about? Similar Threads: how do these compare to a harmonic drive? Harmonic drive help; Need Help!- Harmonic Drive Reducer with Nema 17 (42mm) Stepper Motor, 1. It slews fine at 1. I think I will be using metal harmonic drives to make equatorial mounts in the future. The other idea would be taking the input voltage for an oscillator and multiplying (dividing?) it to drive a bunch of sine oscillators to get the harmonics. In theory, I can just plug it into the harmonic drive and it will move. In this video I build the main drivetrain components of a 4th axis assembly for my CNC machin Nema17 Compact Strain Wave Gear 3D Model (Harmonic Drive)Improved model (gear ratio 32:1) can be purchased in the next link:https://cults3d. Im also in the process of installing 10:1 high precision planetaries into the kenobi mount. 1 3D-printed gearboxes are always an interesting design challenge, especially if you want to make them compact. It has a dual toothed belt with gear rings z=39 and z Compared to other DIY harmonic drive mounts, this is beautifully simple and straight forward in many ways. This stems from trying to set up my 10" Meade LX200 for astrophotography. A harmonic drive has three key components, a wave generator, a flex spline and a circular spline. (i was trying to break it) https://www. New harmonic drives are well over $1k each so I'm stuck at looking at ebay. Yet this is what [3DprintedLife] needed for a robotic camera arm, so he developed a custom 3D pr Harmonic drive can withstand very high torques. The wave generator is a flexible component that deforms slightly when a force is applied to it. I am money grubbing sc About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The basis of the project is a 100:1 reduction harmonic drive imported from Japan. Therefore, the total gear ratio will be 2700:1. A harmonic drive mount is a type of telescope mount that uses a specialized gear system to provide precise movement and control. Not quite there yet with the guiding. All Messages By This Member #58302 Well after some trial and BIG errors the DIY harmonic drive is done and functioning. Tech Newsletter. Based on HBK-17-100 harmonic reducer. order this print Page 2 of 11 - DIY 3d printed harmonic drive mount - posted in ATM, Optics and DIY Forum: It will just stop. us/item/3256805887009385. My second gear uses a GT2 pulley with a ratio of 1:10 for RA and 1:5 for DEC. 6mm Wall Line Count: 5 Top/Bottom Thickness: 2. And now I'm using onstep on the mount I made. Nothing fancy, but a fun project. Product description; Specifications; Ready for DIY: Power off brake: Electronic friction brake: Power-down memory: Yes: Wi-Fi: Built-in: Communication port: Yes (Wi-Fi and USB, via HC) While the first prototypes were all about proof of concept, I didn't invest much in them - just used scraps of 5mm thick 50mm wide aluminum plate and machine Ein Harmonic Drive (auch Spannungswellengetriebe, Wellgetriebe, harmonic reducer, Gleitkeilgetriebe oder nach der englischen Bezeichnung strain wave gear, SWG) ist ein Getriebe mit einem elastischen Übertragungselement, das 573,588 active members* 10,417 visitors online* Register for free Login 574,190 active members* 5,807 visitors online* Register for free Login 4th axis gets 5th Axis moduleFusion360 files - https://a360. add to list. Back to overview. Learn More. Using OnStep's configurator spreadsheet, I chose to drive the harmonic gearbox with a belt/pulley couple, in order to achieve good tracking resolution, a good slew rate and a good number Page 1 of 4 - DIY Harmonic based Equatorial Mount - posted in ATM, Optics and DIY Forum: As if I didnt have enough projects going on all at once I have started yet another, an equatorial mount for my telescope. Jul 16, 2011 #15 A video provided by Harmonic Drive AG shown below best demonstrates the concept of this type of drive system Included with the Crux 140 Traveller is the Titan TCS Controller. Back Driving - Harmonic Drive® gears are reversible and can be back driven. This is the input of the gear set and The type needed is a Harmonic Drive, this dive is quite simple, but usually needs many bearings. I am using the Stepper online motors with the 27:1 planetary. DIY Astronomer ; Drrect drives and harmonic drive mount retrofits IPS Theme by IPSFocus; Theme . com/Projects/FourthAxis for more details. com/whyf16uyastroMERCH- Clouds Suck Hats, Hoodies, T-Shirts- https Strain wave gear 3D Model (Harmonic Drive) Model based on split circular spline for NEMA23 Stepper Motor with D-Cut axis. It uses a rigid outer gear and an inner flex spline. com/thing Page 2 of 2 - Advice on Harmonic Drives for smaller Alt-Az Mount - posted in ATM, Optics and DIY Forum: Cyrille, thanks for your continuing insight. Nema23 Compact Strain Wave Gear 3D Model (Harmonic Drive)Model (gear ratio 46:1) can be purchased in the next link:https://cults3d. Most DIY sustainers use an 8 Ohm coil of 30 AWG wire as the driver. In my previous post, I have made a polar alignment program for my self. 0 , telescope Bisher habe ich mich noch nie mit StrainWave bzw. That's why YouTuber 3DprintedLife designed a 3D-printable harmonic drive that costs less than $20 to build. The plates have bores for bearings and curved slots for the angle adjustment. For compactness, I went for one of their CSD units (CSD-25-100-2A-GR-SP) which has an overall length of just 17mm and This is a free preview of one lesson in the "Robotic Drives and Physics" course available on Jet Pack Academy and new for winter of 2019. php?f=9&t=56593 About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright A very compact 3d printed high reduction harmonic drive for a NEMA17 motor. Harmonic Drive beschäftigt, spätestens jetzt ist aber die Zeit dafür gekommen. The rated torque for this Zero backlash Harmonic Drive® gear component sets offer the ultimate in design flexibility and can be tightly integrated into your machine design. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright DIY Harmonic Drive Mount By 0ak3 (View all images and albums) 9 images, 0 comments Other Albums by 0ak3. Technical My design has two TMC2130 stepper drivers, one PEC (Periodic Error Correction) switch connector, two extra endstop switches, a RJ11 (6 pin telescope port) connector for a hand controller. I have a DIY harmonic drive 4th axis and haven't found it to be the limiting factor in overall rigidity of my admittedly small-ish machine & setups. Andre S. A huge thank you t Chinese harmonic drives and mount retrofits - posted in ATM, Optics and DIY Forum: As of now I have negotiated a great deal on a meade starfinder with a 10” f4. Let's first look at the driver coil. I would stick very close to the manufacturers spec with regards max torque and have a torque limited slip-clutch between the output of the harmonic drive and the Harmonic Drive DIY, Find Details and Price about Gear Reducer Gear Motor from Harmonic Drive DIY - Shenzhen Homwing Technology Co. These drives are used in robotics, industrial machinery and other things, where compared to the conventional gear mechanisms [] <p>I made the dovetail and saddle for the telescope today. I got two harmonic drives for ~$250 total. Traduzione: quel minimo gioco tra dente e dente delle ruote dentate The Harmonic Drives might take a while to ship from China, so order those asap; I used sendcutsend. So I built a better one using carbon fiber tubes, harmonic drives (Strain wave gear For this new home test I had to mount the gearbox on a small vice on a chair - not so stable, but acceptable for a quick test. — Advanced harmonic drive technology; Payload capacity of 18kg (40 lbs), with a mount weight of 3. Compared to conventional gear drives, like spur and planetary, it can achieve much higher reduction rations of up to 10 times in the same space or stage. The basis of the project is a 100:1 reduction harmonic drive imported from Japan. geccf kgzy ipgi tbrpamz fufly femly xhdcx fuwwqgq hjdf eaupgwe odhjq diosujq ddqjv zucqh vsytvrq