CNCycle

thingiverse

This is a CNC machine primarily constructed from leftover parts of paper printers I disassembled to source components for my itopie 3D printer. It employs 6mm diameter brass bushings and steel rods commonly found in paper printers that end up being discarded when searching for the more frequently used 8mm rods required for 3D printing. The stepper motors are Nema 17 from paper printers as well, while the axes are driven on M6 threaded rods and nuts. However, this means that this CNC's axis will not be very rigid so high precision work should not be expected on this machine; I'm mainly aiming to machine PCBs and aluminum and gain enough knowledge to build a larger CNC. The base and bridge are 16 mm thick MDF, with all assembly parts 3D printed using 6 mm long M3 brass inserts for the screws. I used screws from the printers I disassembled, mostly M3, but also 4 and 5 mm plastic screws. Additionally, I obtained longer screws from a hardware store. To control the machine, an Arduino Uno R3 and a CNC shield are utilized. Feel free to modify the design as I will do. BOM : 3*Nema 17 stepper motors X axis : 2x 222 mm 6mm diameter rod Y axis : 2x 232 mm 6mm diameter rod Z axis : 2x 150 mm 6mm diameter rod