This minilathe design is very common in the hobbyist community. It is branded under several names, but the design variations between them are very limited and many
components are shared and interchangeable. They are pretty much all based on Seig design, model CX2.
A STEP file was also added thanks to Daniel Escobedo who helped by sending a converted version. Let me know if anything doesn't work with it. I'll see what I can do. My poor computer is not cooperating with me for conversions right now!