A 3D printed Cycloid Gearbox with two rotors (and suggested improvements)
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- Опубліковано 5 вер 2024
- I'm putting together a 2 stage 20:1 Cycloid Gearbox that's designed in Fusion360 and 3D printed on a Prusa Mini. The motor is a NEMA17 with about 30Ncm torque. As I go I'm explaining some design features and areas to improve. I hope this is fun and educational for you. If you find this useful, please caress that like button and show it to a friend.
Here is the Thingiverse file: www.thingivers...
I try to make these gearboxes because I have yet to find someone that can make the gearbox I want. If you are that someone, ping me.
Mad love for @Levi Janssen and his video about cycloid design in Fusion360: • How to Design a Cycloi... I don't remember who first suggested to me to use the mounting screws in this way, but to you I say thank you! Very interesting!
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Needless to say, but you're up to your ears in Robotic Cycloid gears. 👍
You inspired the people at Prusa working on the XL lol
Oh yeah? Nice. I like what they got.
Nice idea with the C clips. That will solve some of my spacing problems. What size bearing is going on the top?
Paul Gould (the Paul Gould?! Wow!). I believe it’s a 6807? 6813? Big. Not ideal. Best I had on hand.
Cool stuff! Keep up the great work
Subbed for more cycloidal improvements! Nice job!
Dan, Great Job! I called them Strain Wave gearboxes. Check out DYS Gimbal Motor 24N22P GBM5208-75T DSLR Hollow Shaft for 2.0kg . They use them in camera gimbals. You'd need an encoder or gyro MEMS chip. They don't run like steppers. Think Drone copters. Very high speed. Come in every size you can imagine.
FilmFactry strain wave gearboxes are not cycloid gearboxes. I can find a torque rating on your gimbal motor. Nema17 was 54Ncm iirc.
@@Joshua0689 can you fin one with 1Nm torque?
Another cheap toy I'm waiting to arrive "AS5600 magnetic encoder magnetic induction angle measurement sensor module" a couple dollars. use a magnet at the end of the shaft and this uses I2C to give 12 bit angle. They make a 14 bit version as well.
"The AS5600 is an easy to program magnetic rotary position sensor with a high-resolution 12-bit analog or PWM output. This contactless system measures the absolute angle of a diametric magnetized on-axis magnet."
nice work
Dan Royer from flipcode back in the day? 20 years ago...
That’s me!
@@i-make-robots Nice man! Good to see you still active with stuff. =)
Nice job. I'm going to build a cycloidal reducer and read some papers about it. According to the papers, the torque ripple is intrinsic to these reducers. Have you considered this issue?
Thanks
Considered it how?
This is a fantastic design.
I am planning to implement this into one of my designs and would like to increase the mechanical advantage to 38:1 (38 pins and 39 lobes)
Do you have .step files available? working with .stl or .obj files is cumbersome
Thank you
Go for it! Sorry, I don't have STEP files.
I am trying to design a cycloidal gear setup in an application. I'm still confused as to why the four posts rolling in the larger holes are necessary. I'm also not clear on how to get the cycloidal gear tooth shape.
if the posts are fixed then the outside housing will rotate. if the outside housing is fixed then the posts will rotate. which you choose depends on your application. live janssen's video in the description shows how to get the tooth shape.
You mentioned the gears were different but you did not explain what's different about them is it that one gear has one tooth more can both gears have the same number of teeth or do they cancel one another out resulting in no output
The difference is the position of the four holes relative to the teeth. Line up both sets of teeth and the holes will not match. One tooth more is crazy talk, it wouldn’t fit in the housing.
@@i-make-robots so the holes are alignment holes to have both gears at 180 degrees opposition to each other ...correct me if I'm wrong people have said that the two Gear's cannot have the same number of teeth so one must have less than the other ... how many teeth are on both of your gears
@@772777777777777 both discs have the same number but are dephased by 180°
The outer ring has 1 tooth more than the inner discs.
"May I know which model of the control board is in the video?"
A Rumba board. it's a 6 axis controller based on a mega2560 chip.
бля*ь, помолчал бы секунд 10, чтобы послушать насколько оно шумным получилось.