Lifting 20Kg with NEMA17

30V @ 1A
1.2Kg
28:1 cycloidal, 3.6:1 5M HTD & 3.6:1 3M HTD timing belt reductions
360:1 total reduction
Full needle and ball bearings
NEMA17 stepper motor
Open source soon
#cycloidal, #robotics, #nema17, #mechatronics, #actuator, #3dprinting

[@TqSNv9R0iG5Ckxew]

Most people cannot appreciate how truly amazing this is. I wouldn't have believed it if I didn't see it

[@arcsiz]

I cannot believe the plastic gears didn't crumble inside. That's 700kg*cm of torque, absolutely insane.

[@huytranvan2754]

@@arcsiz Maybe there's high amount of wear after prolonged usage. Still amazing any how.

[@NerferCo]

@@huytranvan2754 At the end, you can see that all of the contact surfaces have roller bearings, so I wouldn't expect too much wear at all. Though material creep might cause issues under load

[@PaulGouldRobotics]

That's such a nice thing to say. I'm happy with it. Next is to replace the NEMA17 with a NEMA23 and see if I can lift 50Kg.

[@irkedoff]

​@Paul Gould I would love to see that❣️

[@ParisLuHv]

Finally a decent short I'm actually interested in!

[@PaulGouldRobotics]

Thanks

[@ChrisHarmon1]

44lbs that smooth on 3d printed parts. This is a feat just in how smooth it is with a lever that long.

[@OhHeyTrevorFlowers]

The sound is encouraging. Neat work!

[@GRBtutorials]

Wow, over 60 Nm! Impressive.

[@bjarnivalur6330]

Such a strong little NEMA17

[@osopoe]

Bro just needs some tiktok edits, smash cuts and some giga chad theme music for that stepper and gear box now.

[@pogo758]

Amazing!

[@PaulGouldRobotics]

Thanks!

[@Robotinnovations]

Lovely

[@PaulGouldRobotics]

Thanks

[@adisaksukul8088]

Awesome video! Please keep posting. I'm following :)

[@MrBoi96969]

Hey very great project 😊 can you plz tell me about the size of stepper motor you used

[@manojguha2046]

Incredible torque

[@HappyMathDad]

Since the belt reduction output torque is about 1.6 ft/pound you could replace it with a magnetic gear. I'm not sure what would be a more complex construction.

[@PaulGouldRobotics]

I've played around with magnetic gears. They don't have much torque handling.

[@HappyMathDad]

@@PaulGouldRobotics That's the idea. Combine both the first stage may be okay. But you got a belt. It could help with efficiency I believe.

[@michaeln.8311]

Can the hand go faster and how many reps can it do in a minute? I ask for a friend... 🤣

[@VairoBartolini]

Great work! Do you performed some tests to measure the backlash?

[@narenm5939]

what is the holding torque and at what rpm does the stepper rotating and and what is the speed and torque after gear reduction

[@harolddornier5483]

😮 ahhh ouai il vraiment bcp trop chaud le gars 😐

[@xenontesla122]

Impressive! Just how big is the total reduction?

[@PaulGouldRobotics]

28:1 cycloidal, 3.6:1 5M HTD & 3.6:1 3M HTD timing belt reductions
360:1 total reduction

[@henrik9596]

Would this work for building a robot arm like the ar4 robotic arm?

[@PaulGouldRobotics]

The cycloidal might have too much backlash for the ar4. Maybe my anti-backlash housing design with needle bearings and extra timing belt stages could work.

[@NazLouis]

This is crazy bro lol my 3d prints keep failing at half the weight

[@tomasjaws521]

Hello, is there any possible way to get the cad drawings or contact you about designing these gear drives?

[@PaulGouldRobotics]

CAD files at Thingiverse 5595805. I'm happy to chat to you on Instagram.

[@FARRUKHCNCMAKER]

how strong stapper motor nema 17

[@michazarzycki1634]

Coud you tell what stepper drivier do you use, in my project of cyclodi drive with NEMA 23 motor and TB6600 driver i see little current and the tork is way lower than i expeceted, do you have any sygestions whot can i do?

[@PaulGouldRobotics]

I use the KL-4030 (40V @ 3A) and the 17hs24-2104s stepper motor. TB6600 is better. What is your NEMA23?

[@michazarzycki1634]

@@PaulGouldRobotics Thenk you for responding, i'm using JK57HS56-2504 nema 23 stepper motor with 1:19 reduction on my cycloid drive, and i could only lift about 4,5 kg on 15cm arm, wich is about 6,6 Nm, even on really low speeds. I didnt check the stall torque of the whole drive, but still i think thats really low.
I've just find out that you reduction was 360 and know i understand that you couldev lift that much. Really impresive stuff.

[@elielsalvaterra780]

where can I find this bearing?

[@PaulGouldRobotics]

Ali-express; details on thingiverse 5595805

[@JM_Tushe]

Dang, that's scary.

[@jamesrcrypto]

And no fishing cable...

[@PaulGouldRobotics]

Do you mean Capstan drives?

[@jamesrcrypto]

@@PaulGouldRobotics Yeah, I thought they were stronger?

[@okanvitaliy]

Редуктор нелинейно вращается. Уже проходили такое.

[@dimarusful]

Почему? Это обычный циклоидалтный редуктор. Добиться хорошей соостности на напечатанных деталях задача очень сложная, но в остальном ок.

[@okanvitaliy]

@@dimarusful когда добьетесь линейности, то сообщите мне пожалуйста.

[@ULTIMATEPOWER-qj1gm]

Plastic gear !!!

[@PaulGouldRobotics]

PLA+ 90% infill, 3 walls

[@LupusMechanicus]

44 ft/lbs? Thats pretty impressive.

[@PaulGouldRobotics]

It is stronger than me :-)

[@irkedoff]

Great job! Was this printed with solid infill?

[@PaulGouldRobotics]

3 layers, 90% infill 0.4mm nozzle and PLA+