Remix of X,Y,Z carriages for the DIY Dremel CNC design and parts by Nikodem

thingiverse

I've modified the original X, Y and spindle carriages to have slightly larger linear bearing holes for tighter tolerances with my printer and ABS filament. The original X-carriage design had a clamp-type fixing for the 12mm linear rods, which was prone to breaking if crushed or over-tightened. I replaced the 'clamp' with a through-hole design where the rods can be secured by grub screws. I also modified the lead screw holes so they only have fixings on one face, while the other face has a larger hole to allow an anti-backlash nut to slide inside. Fitting can be a little tricky, but it does work. I reamed the holes instead of filing in post-production for more accurate hole diameters. I added a Z-probe connector to the frame and an RCA connector for ease-of-use. I found some feet in one of Nikodem's Fusion files, modified them to countersink. I also created a middle leg for added support of the frame in the center. The optical end-stop mount was retrofitted to the spindle carriage and Z-axis carriage because I'd already printed those parts previously. In the future, if I need to re-print them, I will redesign them to integrate into the carriage prints. The optical end-stop trigger was remixed from Anet A8 optic Z-endstop by Sagatxx.