The spacers I can't get hold of 10mm outside for m3 3.2mm, the best I can do is outside of 8mm. What would the impact be if I used this size? also I might be using inventor wrong, but the motor spacers measure 5mm inside diameter.
also the Standoff text says 37mm, but the part is 35mm. is the 35mm the correct part or do I need 37?
So the spacers for the motor are 3mm ID, 10mm OD, but an 8mm OD should work fine! The idlers also use 3mm ID for the taller ones, and once again 8mm OD will be fine. For the internal tubes for the toothed idlers (3mm ID, 5mm OD), they can't change.
For the standoffs on the control board, use 37mm. The files may not be updated or may be misnamed!