DIY 3018 CNC - More expensive, but stronger

thingiverse

####[WORK IN PROGRESS] This is my design of the 3018 CNC, but stringer. I love the 3018 CNC project, but I think it needs some updates to be able to cut trhough harder materials, like aluminum or even PCBs. I changed the Spindle for a 500W, air-cooled motor, improved the stepper motors to 4401 for higher torque and redesigned the Z carriage. This might not be the perfect cnc, nor this is better than the original 3018, but I had fun designing it and solving some of its problems :) Also, this is my first uploaded thing here on Thingiverse and also a Work In Progress, so any comments would be appreciated! ####Parts bought to build one of this: - [2x] 100mm x 8mm Smooth Rod - [2x] 370mm x 8mm Smooth Rod - [2x] 450mm x 8mm Smooth Rod - [1x] 100mm x 8mm Lead Screw (2mm Lead) - [1x] 350mm x 8mm Lead Screw (2mm Lead) - [1x] 450mm x 8mm Lead Screw (2mm Lead) - [16x] Corner connector for 2020 Extrusions - [8x] 8mm Shaft Support (SK8) - [2x] NEMA 17 Mounting Plate - [6x] 8mm Linear Bearing (LM8UU) - [2x] 8mm Linear Bearing (LM8LUU) - [3x] Rigid Coupler - [3x] T8 Anti backlash nut (Lead 2mm) ####Electronic parts: - [1x] 500W air-cooled Spindle motor with Power Supply and 52mm clamp - [3x] NEMA 17 4401 (1.7A) - [1x] GRBL Controller board ####3D Printed parts: - [1x] Z Carriage - [1x] X Carriage - [2x] Corner Supports - [1x] Lead Screw Bearing Support ####TO-DO - Attach the bed correctly - Position endstop switches to limit the axis movements - Design bed support to T8 anti backlash nut (underneath)