I recently learned about ODrive and it is a very exciting project
I was wondering whether anyone had managed to build a large ball or lead screw based system with ODrive. I am wondering what kind of speeds can be reached, as possible speeds (up to 7500 rpm considering the AMT102 encoder) would require very large screws or very small distances not to exceed the critical speed of the screw.
I was considering retrofitting an OpenBuilds-based system with ODrive, but based on critical speed calculations, and considering:
- A 8 mm lead screw
- A critical speed of 10,000 rpm (7,500 rpm usable considering a security factor of 0.75)
The maximum length of a system going at maximum speed would be 45 cm (~18"), which is not as much as I would need. If I were to build a 36" system, I would need a lead screw with a 32 mm diameter…!
Does anyone have any advice and/or positive/negative experience with fast screw based systems? I do not have any experience building these systems so maybe this is just theoretical babble?
Thanks for the help,