DIY Cycloidal Laser-Cut All-Metal Robotic Actuator: Durable!
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- čas přidán 30. 06. 2023
- We make a powerful robotic actuator based on a cycloidal gear made of metal laser-cut parts. At the end of the video we test it for maximum speed and torque.
The cycloidal wheel generator has beeen taken from:
EASY CYCLOIDAL GEAR WHEEL GENERATOR by kowalski.szymon.87@gmail.com
grabcad.com/library/easy-cycl...
I am very pleased that my work, after so many years, still helps create great things. Great invention.
Share it ;)
Great job! Do not forget to lubricate the mechanics.
Good to see someone else doing interesting designs with flat laser cut parts (the offset crank) where machining isn't feasible or possible.
Great video. Thank you for sharing this.
I was just trying to do something like this, nice work! Awesome to see what goes into making it from another perspective.
LOL!! Nice work with laser cut. Simple but strong design. Please share more info
My god!! This is a beast!!! 😁
thats an awesome design. Compact & strong. Useful as actuators 👍. Thanks for sharing ❤
love this design
You placed that actuator dangerously close to the laptop during testing lol
Woudnt want to destroy tat $100 laptop
Excellent! Metal laser cut parts are indeed the best choice! Maybe expand the drive for more torque?!
Very nice! The cycloids look durable, but I think the mounting of the motor should be better. Only those 4 bolts on the housing keep everything in place. That would also help with positioning the motor for coaxiality. Great work, subscribed!
Hi this is Harvey from PCBWay, we really like your work and would love to do some collab with you!
It would be nice! my mail is hoxrobotics@gmail.com
Very nice, well done
What is the ratio of the gearbox
great work HOX Best i,ve seen yet,👍 did it have much back lash?
Thanks, it has a quite small backlash, but still noticeable. I would say less than one deegree.
To improve accuracy, how about getting the holes cut slightly smaller, then using a reamer to ream out the holes to final dimensions? Also, using shoulder bolts instead of using all thread bolts?
Good suggestions, I will consider them in next builds, thanks!
That is an awesome build and I think I understand cycloidal gears better now.
Wouldn't the motor get hot in the box?
Will the gearset need lubrication and lube separation from the motor?
There should be no friction, the cycloidal gears only touch the roller bearings, the eccentric shaft bearings and the output shaft bearings. But you are right, it would be good to put some solid lubrication. If motor gets hot I could open some slits, or even put a small fan
9:42 20kg at this angle are not 20kg perpendicular to the output axis, so either you need to calculate the torque with a shorter distance between motor axis and mount point of the spring
4:12 Perhaps having an annular ring reducing bolt flexing. How about adding some dielectric grease to make it smoother?
That annular ring could be a good improvement. Adding some grease is definitely needed!
Fun project! but two things really grinds my gears.
First of you used no lubrication at all, and secondly you use the heads of bolts as the transfer from the motor and the gearbox witch is a bold move to say the least.
There should be no friction, the cycloidal gears only touch the roller bearings, the eccentric shaft bearings and the output shaft bearings. But you are right, it would be good to put some lubrication
Thanks for sharing this! But, normalize your audio in post!!! hard to hear you.
Very impressive! Btw the link in the description doesn't work.
Fixed, thanks
PEEK 3d-printed assembly like this should be much less noisy
Probably, but the idea was to make and test a full-metal gear to see if it was feasible
you dont even need PEEK, some of the nylons would be sufficient, and also printable on a bambu x1c. 3dxtech has a MoS2 infused nylon that i like a lot and intend to do this with, called WearX.
Any idea why the backdrivability isn't smooth?
Maybe it’s too tight and friction add up to the whole resistive torque due to gearbox and motor inertia, try to avoid friction
@@federico6b Thanks. I'll try this design and add some lubricant. Great work!
Maybe it is too tight, and probably the positions of the roller axes are not as accurate as they should be, due to manufacturing errors
What was the motor?
Eagle Power EA95 motor
śruby nie mogą mieć gwintu w miejscach gdzie stykają się z elementami które przenoszą na nie obciążenia