Hi David,
I want to replace the M3 ballstuds with an M4 assembly. I'd have to drill the holes to 3.2mm and cut an M4 thread.
I know, the surface of the PCB has a big clearance around the ball stud area, but is it a 4-layer design?
THX
Olaf
Be careful to maintain exactly the same spacing between the ball studs at the top and bottom of the arms. So make sure that your drill bit is accurately centred. I don't know how accurately you can tap 1.6mm epoxy glass.
Edited 2 time(s). Last edit at 03/10/2018 04:34AM by dc42.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].