3D printed concrete lathe

Free and open-source metal lathe design where we print the forms using a 3D printer, fill them with concrete or other suitable mix, post-process the parts with sanding and assemble a CNC-ready lathe together using off-the-shelf parts and a few custom CNCed pieces.

• 125mm chuck, MT5 spindle with 38mm through-hole
• 136mm cross-slide travel
• 80mm between cross-slide and centerline
• 300mm maximum turning diameter
• Any bed length, default 800mm with 600mm rails
• No backlash, double ball nut on Z
• 20mm/15mm linear rails, 16mm/12mm ball screws, NEMA23 motors
• Double row angular ball bearings
• Integrated spindle lock and magnet bed covers
• Manual operation and CNC with or without PC

It is a hard, long and expensive project to complete. The end result can surpass many comparable lathes in rigidity and features.

Mechanics and assembly: https://youtu.be/lnFw8G95LGo

Motors and digital control: https://youtu.be/Vne_7rnhub0

Further details - https://github.com/kachurovskiy/modulathe/tree/master/v2