FKM-CNC para/for PCB

thingiverse

I designed the FKM-CNC to use with a Dremel mini-lathe for PCB fabrication. The work area is X-150MM, Y110mm, and Z 60mm. The electronics include an Arduino Uno with a CNC shield and recycled Epson printer motors. This CNC can be converted into a mini 3D printer with some modifications. To assemble the profiles, I made holes, grooves, and threads, but all that work can be avoided by using printed corner brackets with special screws for these profiles. Here is a list of some materials: --- Profiles 2020: 2 pieces of 110mm long 3 pieces of 170mm long 1 piece of 200mm long 1 piece of 210mm long 2 pieces of 220mm long NOTE: The profiles I used as the workbench base are the same ones used for corners when placing tiles. You will need 10 of these profiles, each 160mm long. This base can be leveled since it is independent of the Y-axis carriage, which means you can replace it with whatever base suits your needs. ---13 plastic pulleys of 24mm diameter (V-slot) 5 of these pulleys are regulated by eccentric nuts. ---Total GT2 belt length: approximately 1100mm To make the XY tensioners' belts, I printed two bushings for 604zz bearings (you will need 2 for each tensor). ---Hardware: Pulleys plastic: 10 M5 x 30mm screws 3 M5 x 40mm screws 13 self-locking nuts 5 bicelated washers (used for regulated pulleys) Tensor X-axis: 1 M4 x 25mm screw 2 M4 self-locking nuts Tensor Y-axis: 1 M4 x 20mm screw 1 M4 self-locking nut 4 M3 x 10mm screws 4 common M3 nuts Workbench base: 4 M5 x 25mm screws (level) 4 common M5 nuts (level) 8 M3 x 5mm screws (attach profiles) 4 springs/struts Y-axis belt tensioner: 2 allen M4 x 10mm screws 2 common nuts Z-axis transmission: M8 threaded rod, 180mm long 2 common nuts 1 flat washer 1 spring/strut These are most of the materials needed to assemble the CNC. I still need to upload the PCB holder system soon. Please comment if you have any questions. Best regards