Milovana.com

Hello :)
well long time ago i read that someone build a fucking machine using a Chi machine. I did the same but have to say that i just used the motor with the travo and the control unit with the board. Then i used some bearings, some four-square wood and printed some parts with my 3d printer and voila i have my fucking machine and it costs me about 70€. It has a stroke about 14 cm and I used it like this for 1 year now buuuut there is one thing i dont like: Its too fast. Yes, right, too fast normally isnt the problem but with the control unit of the chi machine i can set speed 1 to 10 but speed 1 is already 3-4 bps. Im an mechanical engineer but im not familiar with electrical engineering and dont know how i can adjust the board to get a slower motor, because i find 0 information online about this board/machine etc. ...Mayber someone have a idea to find out how i can slow it down? I will thank you ;) Here is a pictures of the board:

1. full view, left the control unit, in front the plug, right side the transformator and the motor
2. motor, PMD-071060-004 - cant find anything about this cheap china thingy
3. - 6. some detailed pictures

Spoiler: show

regards
Rene

Don´t go for electronic speed reduction, go for mechanical speed reduction.
Build a set of gears in between or alternatively, some belt and pulleys.

If you reduce the speed to much, you risk overheating the electronics and motor. They are not build to run that slow.

By the way, I have build something similar.