Mini Lathe

thingiverse

Mini lathe printed in 3D, I recommend filling mechanical parts at 50%. I've printed it in Pla and Petg (red) - Pla + holds up very well. You'll need two pieces of 20x20 aluminum profile, decide on the length, but don't make them too long, max 50/60 cm. This lathe works with small diameters, even if the spindle reaches 40 mm. It's perfect for small model-making pieces and key-rings. You'll need M4 Allen screws in 10 mm, 30 mm, and 25 mm to fix the parts. The motor is a 775, 12V, 6000 rpm pulley with 20 teeth on the motor and 36 teeth on the spindle pin - GT2 pulleys are used. A closed GT2 belt 20 cm long is required, plus a smooth GT2 pulley with a 5 mm pin hole, an M5 threaded bar 11 cm long for the smooth pulley, and an M8 piece 16 cm long for the tailstock. Some M8 nuts (for knobs and to lock spindles) are also needed. I used a 40W variator for direct current on the motor - it's more comfortable and speed can be adjusted. A small aluminum sheet (0.5 mm thick) was inserted under the engine for thickness. Two tips: center the spikes of the pins well, so the lathe works perfectly, and use locknuts with washers on the spindle screws to prevent them from unscrewing during use - they'll stay securely locked even after long use.