I built an Equatorial Mount for astronomy, with two HarmonicDrive gearboxes

Ғылым және технология

I built a portable, lightweight, yet mighty equatorial mount with two HarmonicDrive gearboxes. The EQ mount weighs about 16lbs and can support 25lbs without counterweights, or 70+lbs with counterweights.
Update: I finally finished cleaning up my design files and released all of them (part design, solidworks drawings, BoMs, PCB boards and so on) here: github.com/alanzjl/AlkaidMount
BGMs:
Podington Bear - Bated Breath
Gotye - State Of The Art
Portugal. The Man - Feel It Still
Time to Pretend - Lazer Boomerang

Пікірлер: 361

  • @craftedbyjz
    @craftedbyjz Жыл бұрын

    Update: I finally finished cleaning up my design files and released all of them (part design, solidworks drawings, BoMs, PCB boards and so on) here: github.com/alanzjl/AlkaidMount About the cost: I got mine HarmonicDrive CSF-17 pair for ~400 usd used from eBay. Aluminum sheets were cheap - about $60 in total. Screws ~40. I used the university machine shop so it’s free. Electronics about 100 in total (but I got enough components to make me about 10 boards:). Motor & planetary gearboxes ~100. So the total cost was about $700, very nice deal compared to a commercial RainBow HD mount that’s $3k+. I had a beginner EQ mount (HEQ-5 pro) which I got for $1.6k (during Covid) and I 100% prefer my own mount.

  • @gpaunescu

    @gpaunescu

    Жыл бұрын

    Thanks for info; please let me know the motor model, if you can.

  • @dinmavric5504

    @dinmavric5504

    Жыл бұрын

    That is amazing. I've long thought how a custom made mount would be much cheaper than buying one, you confirm that idea.

  • @PaoloBanci

    @PaoloBanci

    Жыл бұрын

    Can I order one? :-D

  • @greatpix

    @greatpix

    Жыл бұрын

    Did you keep track of how many man hours you put into building it?

  • @syberand

    @syberand

    Жыл бұрын

    Hows the tracking, and very impressive

  • @Aubstract
    @Aubstract Жыл бұрын

    Mounts have gotten so ridiculously expensive, it makes sense that people with equipment like yours would start making their own.

  • @Robin-Visser

    @Robin-Visser

    Жыл бұрын

    Correct. But after using one of those expensive mounts for about 3 years, your resell value is probably higher than a diy one. The increased pricings lately will also give a higher return when you sell it. Also think about the brake safety and other features that might help you to prevent costly damage to your scope

  • @brandonhicks7549

    @brandonhicks7549

    Жыл бұрын

    @robin That’s a funny argument. It’s like the inverse of the “just think of all the taxes you’ll save” by taking a job with less pay. Of course it won’t be worth as much-it didn’t cost as much and doesn’t come with a pedegree. Such is the nature of diy.

  • @Robin-Visser

    @Robin-Visser

    Жыл бұрын

    @@brandonhicks7549 i bet investing in a known brand will cost you less compared to building something yourself. Prices of branded items will probably outperform inflation. Chances are that you will sell your branded astro gear after some years of use and receive more than you paid for. Like real estate. Sometimes going cheap costs more than a good but more expensive purchase.

  • @nadaadeclarar1979

    @nadaadeclarar1979

    Жыл бұрын

    I completely agree, in the country where I live there are no manufacturers so you have to import, the government charges a 60% fee on top of the value of the imported product and also on the cost of shipping, making it almost impossible to buy an EQ5 for example. I recently became interested in producing a handmade one and I'm researching the subject, I've seen that it's possible to produce one buying local material and importing some parts like stepper motors, pulleys, bearings as well as electronic components making it much more advantageous to manufacture it myself.

  • @RaisinEnjoyer

    @RaisinEnjoyer

    7 ай бұрын

    @@Robin-Visserastrophotographer try not to have buyers remorse challenge: impossible

  • @beatsntoons
    @beatsntoons Жыл бұрын

    I'm utterly blown away by your project, and your generosity in releasing the files/design. Thanks for your kind service to the community. I hope your new mount performs well for you for years to come :)

  • @johnlahmann
    @johnlahmann4 ай бұрын

    the amount of "know-how" in this video is incredible

  • @lukomatico
    @lukomatico Жыл бұрын

    This is incredible work mate, I'm so impressed!!

  • @hivetyrant7
    @hivetyrant7 Жыл бұрын

    This is one of those videos you watch and think "This channel is going to blow up, I guarantee it". Very impressive work!

  • @0Logan05

    @0Logan05

    5 ай бұрын

    ..I was far too distracted with the God Awful sound track.. Sad really as it rendered it moot..

  • @johnw6908
    @johnw6908 Жыл бұрын

    Wow! Thank you for sharing! Every bit of the video was awesome, the editing, music, your machinist/engineering skills and photography! Thank you!

  • @Wolfie6020
    @Wolfie6020 Жыл бұрын

    Excellent work and congratulations on building such a fabulous mount. Thanks for sharing and I watched it with a smile on my face and in awe of your talent.

  • @whereswa11y

    @whereswa11y

    Жыл бұрын

    As did I.

  • @jeremytheimer7443
    @jeremytheimer7443 Жыл бұрын

    Love the craftsmanship, everything seems to fit very well together. I'm very impressed with the final image.

  • @ExoPhotography1
    @ExoPhotography1 Жыл бұрын

    WOW! I love the craftmanship going in to this build! This is what drives the amateur astronomy segment forward! Keep videos like these coming! /Daniel

  • @kzar33
    @kzar33 Жыл бұрын

    Fantastic job! A year ago I was about to design a harmonic drive mount myself but life got in the way and the project has been on the back burner. This video just renewed my interest. Thank you!

  • @derekderek2570

    @derekderek2570

    Жыл бұрын

    I mean.... you really think you could do this?

  • @lawabidingcitizen5153

    @lawabidingcitizen5153

    6 ай бұрын

    @@derekderek2570 If anything it will be worth it for the learning experience, no need to demotivate anyone...

  • @witr
    @witr Жыл бұрын

    This is super cool, I had an idea to try and do something similar a while ago but never actually tried to execute it. You definitely did a much better job of it than I could have anyway lol. It's great to see something like this work out. awesome work

  • @TimK-1971
    @TimK-19718 ай бұрын

    This is so gratifying to watch and listen to. Thanks for sharing this video with us.

  • @heinrichhemker8123
    @heinrichhemker8123 Жыл бұрын

    Congratulations! Absolutely outstanding - look and feel of a pro unit!

  • @FrootyRecords
    @FrootyRecords Жыл бұрын

    Very Impressive, you have great engineering skills and a nice workshop and equipment!

  • @astroboden
    @astroboden Жыл бұрын

    Mesmerising video. Excellent work. So nice to see. Thanks for sharing!

  • @arvindkumarts
    @arvindkumarts Жыл бұрын

    Great video buddy, I was thinking for a long time whether to buy one for $$$ or can i make a reliable, precise one, finally I came through this video, and its so kind of you that, you have made plans, methods available to public and thus encouraging such enthusiasts to build one for themselves! Appreciate it!

  • @blackbear92201
    @blackbear92201Ай бұрын

    I think this is magnificent, beautiful and inspiring. Subscribed. thanks for posting! :D

  • @danield4573
    @danield4573 Жыл бұрын

    I couldn't even imaging undertaking this, extremely impressive.

  • @bigmeechmane
    @bigmeechmane3 ай бұрын

    Super inspiring man. Great engineering.

  • @gabeeg
    @gabeeg Жыл бұрын

    Pretty amazing, well done! ...and extra kudos for GPL!

  • @lukasdimmler2622
    @lukasdimmler2622 Жыл бұрын

    Absolutely awesome result!

  • @3VAudioVideo
    @3VAudioVideo Жыл бұрын

    WOW! Amazing! Sweet project. I would have never thought to make one. Great job!

  • @gregoryzloch9106
    @gregoryzloch9106 Жыл бұрын

    What a beautiful bit of kit. Kudos.

  • @rizeglass
    @rizeglass Жыл бұрын

    I followed the video perfectly and it only took an hour to make. thanks for posting

  • @daveashcroftuk
    @daveashcroftuk Жыл бұрын

    Good work fella. What an outstanding piece of engineering! 🙂

  • @C40V15
    @C40V15 Жыл бұрын

    This is a super cool build and a smooth video. Bravo!

  • @joebiscoeiv747
    @joebiscoeiv747 Жыл бұрын

    Great work! I love the DIY!

  • @markwelsh9068
    @markwelsh9068 Жыл бұрын

    Absolutely incredible work! I envy the talent of people such as yourself.

  • @denispol79
    @denispol79 Жыл бұрын

    Wow! Awesome job mate! I also had HEQ-5 pro once and it sure had plenty of issues. An astronomic thanks for releasing it all to the public. Sub )

  • @GeneralChangFromDanang
    @GeneralChangFromDanang9 ай бұрын

    As a Tool Maker and weekend astronomer, this looks like it's right up my alley. Thanks for the video.

  • @chrisroberts1440
    @chrisroberts1440 Жыл бұрын

    Excellent work, not listened to Magnetic Fields for years so enjoyed that too.

  • @jeremyjames2643
    @jeremyjames2643Ай бұрын

    Just got into astronomy, been looking at many diy mounts and this by far is the best ive seen. Unfortunately even with all the information provided im far too dumb to design it let alone building and assembly. Its beautiful though absolutely amazing work!

  • @Astrobloke
    @Astrobloke Жыл бұрын

    That is fantasic work JZ. My father has a lathe and milling machine but whether we could make this or not I am unsure, I would absolutely love to though it looks amazing. Thank you for sharing your work and clear skies to you

  • @Neil_Winston
    @Neil_Winston Жыл бұрын

    Really nice build and great video!

  • @jfgout
    @jfgout Жыл бұрын

    Impressive project and great result!

  • @RocTheReaper
    @RocTheReaper4 ай бұрын

    As an engineer, programmer and network security professional... I was like WTFFFF? What is up with this set of skills?!? And then I saw MIT and it all made sense LOL. Awesome work man!

  • @MaxRockatansky
    @MaxRockatansky Жыл бұрын

    Outstanding work!

  • @kutaibaa
    @kutaibaa Жыл бұрын

    Absolutely incredible work .. wow I'm speachless

  • @WKfpv
    @WKfpv Жыл бұрын

    Guy has skills on several fields. Amazing. Loved it.

  • @roostaCSGO
    @roostaCSGO Жыл бұрын

    Simply incredible. I have always wanted to go this route and DIY a mount to be alongside my CEM40, but unfortunately I have limited access to proper machining tools. If you do choose to release plans, it would be incredibly helpful as there are not many resources on doing something like this. The closest project I can think of is the OpenAstroTech designs, and those have a relatively small load capacity compared to your design due to them being mostly 3D printed. I look forward to seeing your other projects!

  • @donstronomy7606
    @donstronomy7606 Жыл бұрын

    You have just blown my mind. Thank you for sharing. 🙏👏👏👏

  • @brenthann2623
    @brenthann262311 ай бұрын

    i cannot tell you how envious of your abilities i am.

  • @itsgmani
    @itsgmani Жыл бұрын

    Great music selection.

  • @scottwilliams895
    @scottwilliams895 Жыл бұрын

    I *deeply* appreciate this build, made almost entirely out of plate stock. A thing of beauty.

  • @scottwilliams895

    @scottwilliams895

    Жыл бұрын

    The 3d printed covers are a nice touch. From the thumbnail, I didn't notice they weren't also aluminum! If I might ask, what filament is that? (I saw the brief note that it was provided/sponsored)

  • @davidmurren4644
    @davidmurren4644 Жыл бұрын

    Excellent work! You have earned my subscription!

  • @joearcuri3377
    @joearcuri33774 ай бұрын

    awesome work

  • @cbuddy66
    @cbuddy66 Жыл бұрын

    Very impressive 👍🏼. Well done!

  • @PifflePrattle
    @PifflePrattle Жыл бұрын

    I built an equatorial mount at school as a metalwork project. It wasn't as good as this. But I was only 14 with ambitions advanced beyond abilities. And the project began a few months before Jim, Frank and Bill enjoyed the best Christmas ever cooped up in a small tent sized can beaming grainy low resolution pictures back to us excited kids. My mount was based on the German type and had no drive. I just liked the idea of being able to view without constantly moving two axes. It bore the same relation to a professionally manufactured mount as the live TV of Neil and Buzz doing their thing does to 4K video.

  • @srikanthmeg
    @srikanthmeg Жыл бұрын

    Amazing work! YOU are the BOSS

  • @glauberprado8752
    @glauberprado8752 Жыл бұрын

    very nice design, amazing mechanical lab, never saw a underwater cnc before

  • @TiagoRamos79
    @TiagoRamos79 Жыл бұрын

    Simply Brutal. Congratulations.

  • @stefan_astro
    @stefan_astro Жыл бұрын

    Incredibly well done man😮!!

  • @Ghostnotes1221
    @Ghostnotes1221 Жыл бұрын

    As a senior robotics engineer and designer, however a very new amateur astronomer, I wondered how long it would take for harmonic drives to really enter the mainstream. I bought a Losmandy G11 and immediately afterward saw the Ipotron. I almost returned the G11 knowing the capabilities this tech has. This will be the new norm in the near future. Sharing your knowledge freely, for the benefit of others is a very noble thing. Well done.

  • @zibmi9
    @zibmi9 Жыл бұрын

    Superb skills.. amazing job

  • @heraldofdisaster3322
    @heraldofdisaster33222 ай бұрын

    Thank you for sharing project drawing Alan! İ subscribed

  • @tychobrahe4578
    @tychobrahe4578 Жыл бұрын

    Good job, very impressive !

  • @misturarica7519
    @misturarica7519 Жыл бұрын

    Wow, awesome job!

  • @ozgurunaldi
    @ozgurunaldiАй бұрын

    👏👏👏 Great work!

  • @TexasTimelapse
    @TexasTimelapse Жыл бұрын

    Nice work! That's one sexy mount!

  • @ACKitsBilltheCAT
    @ACKitsBilltheCAT Жыл бұрын

    First - absolutely amazing work! Second - love the Jean-Michel Jarre music!

  • @jayswindle9529
    @jayswindle9529 Жыл бұрын

    Far from "too boxy" I find the design and execution beautiful. Well done.

  • @joostvisser6508
    @joostvisser6508 Жыл бұрын

    This is brilliant

  • @again5t.your53lf6
    @again5t.your53lf6 Жыл бұрын

    Damn thats Amazing !!!!!!! Probs to you, wish i could buy one

  • @flyingdockp
    @flyingdockp Жыл бұрын

    You really have golden hands!!!

  • @patchyadventures
    @patchyadventures Жыл бұрын

    Awesome video!

  • @valentinotera3244
    @valentinotera3244 Жыл бұрын

    some serious skills outhere

  • @MatthewHolevinski
    @MatthewHolevinski Жыл бұрын

    It's about time we start seeing some open source hardware :) You sir are a saint.

  • @Larstronomy
    @Larstronomy Жыл бұрын

    That is incredible!!!

  • @sylvanapritkovs2244
    @sylvanapritkovs2244 Жыл бұрын

    Wow, amazing stuff man. Can I ask did you consider using direct drive motors or are there more technical challenges associated with those? I want to be able to build my own mount one day instead of paying thousands of $$ too, thanks for inspiration.

  • @eSUN3DP
    @eSUN3DP Жыл бұрын

    👍Nice job and professional technique

  • @christophermussel5783
    @christophermussel5783 Жыл бұрын

    Nice job!

  • @anandarochisha
    @anandarochisha Жыл бұрын

    Good work.

  • @AstroEscape
    @AstroEscape Жыл бұрын

    If I could, I would. My brothers are into machining, I may challenge them to make a mount someday. It's not me though, I enjoy helping bringing people into the hobby before they craft things like this. Well done!

  • @user-mv6de3sc8g
    @user-mv6de3sc8g Жыл бұрын

    My shit! I can't believe what you did ! You are very much creative guy. Continue to study!

  • @IvanProsper
    @IvanProsper9 ай бұрын

    I feel I would love to buy this in Kit form and build it myself. great job.

  • @astroindianx
    @astroindianx Жыл бұрын

    OMG MAN GREAT WORK!!

  • @profphilbell2075
    @profphilbell2075 Жыл бұрын

    Amazing!

  • @ergio1
    @ergio1 Жыл бұрын

    Nice one! Thanks for sharing, 🎉

  • @the_astro_garden
    @the_astro_garden Жыл бұрын

    Astro DIY on another level!

  • @gregsonberlin3782
    @gregsonberlin3782 Жыл бұрын

    Exactly the mount I need…. …just need the machines and the material and the skills and the time and the plan…. Meeeh. Great work anyway! :)

  • @CuriousRiz
    @CuriousRiz Жыл бұрын

    Absolutely awesome! Subbed.

  • @jeandubois8810
    @jeandubois8810 Жыл бұрын

    I love it !. You should make the electronic enclosure waterproof and include desiccant.

  • @glauberprado8752

    @glauberprado8752

    Жыл бұрын

    most eletronics involved are pretty cheap so if it breaks just replace it

  • @jollyvivi
    @jollyvivi Жыл бұрын

    Wow.. what a superb built.. It would be wonderful if you could share the design and details of the PCB and parts ! I would certainly want to build it !

  • @NELLODIDIER
    @NELLODIDIER8 ай бұрын

    Superbe, bravo.

  • @motoflyte
    @motoflyte Жыл бұрын

    That is Very cool !!

  • @maxdemian6312
    @maxdemian6312 Жыл бұрын

    OnStep is amazing!

  • @tarangan.chinchwad
    @tarangan.chinchwad Жыл бұрын

    Excellent

  • @Psychlist1972
    @Psychlist1972 Жыл бұрын

    Very nice!

  • @paulmog666
    @paulmog666 Жыл бұрын

    Wow excellent

  • @alex.zen.4587
    @alex.zen.45879 ай бұрын

    I liked the montage. Suitable for a small astrograph. But to make all the parts, a vice, a hacksaw for metal, a file and an electric drill are enough. The polar axis tilt assembly axis can be replaced with a simple bolt.

  • @DavidKirwanirl
    @DavidKirwanirl Жыл бұрын

    Very nice

  • @neggleston
    @neggleston Жыл бұрын

    Very very impressive

  • @leeguilfoyle9481
    @leeguilfoyle9481 Жыл бұрын

    Cool project, have a pair of harmonic drives on order myself, this has just spurred on. Are you using an ESP32 as the controller? Was looking to breakout the stepper control lines beyond SPI and possibly run a closed loop system to have one more level of error checking in the motion control. Subscribed, this is just immense engineering at this level and access of tooling.

  • @operator911
    @operator91110 ай бұрын

    Totally badass

  • @chrismofer
    @chrismofer Жыл бұрын

    lovely design. I wish I had the actuators to make an EQ mount for my whole dobsonian, but it's quite big and heavy and would probably sag at odd angles. An EQ platform is typical for dobsonian users, but they don't track for very long.

  • @laurentvilarem6149
    @laurentvilarem6149 Жыл бұрын

    Really impressive by your creation ! Love the DIY touch and it look very nice ! Do you have any idea of the precision ? or you don't mind like you have a camera which guide the all sytem ?

  • @MadeWithLayers
    @MadeWithLayers Жыл бұрын

    Nice

  • @TylerMillhouse
    @TylerMillhouse Жыл бұрын

    One day, I hope to be a quarter as good at building things! Currently a 3d printer person with aspirations of building a CNC (printnc). Inspiring work!!!

  • @josemanuelramirezgomez
    @josemanuelramirezgomez Жыл бұрын

    Really wonderful. I want to know how you will design and build an eq platform for dobsonian telescopes. Sure it will be amazing and state of the art constructed.

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