The file 'MR5 Robotic Track System 3D Printer Model' is (stl,pdf) file type, size is 20.4MB.
This Robotic track system has been in use in my classroom for two years. It is strong, robust and maintainable.
This model is the track only, but comes with a mount for the Pololu 25D series motors. There is also a frame mount that I used for the prototyping version (purple and yellow one in the images) of the tankbot which was able to withstand a 3kg rig being used in the classroom by 14 year olds for 4 semesters. The only time they broke was when they were driven off a table.
Here is a video of it in action in the classroom -> https://youtu.be/EVI0HyWWj3E
I cannot share the original CAD files I am sorry.
All parts and printing instructions are in a PDF Assembly Guide uploaded here.
50_Tracks.stl | 44.4MB | |
COG_Blank.stl | 260.9KB | |
COG_Spindle.stl | 274.8KB | |
MR5_Assembly_Instructions.pdf | 16.6MB | |
Pololu_25D_Mount.stl | 110.0KB | |
track.stl | 176.5KB | |
Track_Frame_Inner.stl | 523.3KB | |
Track_Frame_Mount.stl | 194.6KB | |
Track_Frame_Outer.stl | 332.0KB |