For anyone intersted i am offering a cnc lathe kit for the 9x20 chinese import lathe. the current kit uses standard nema 23 stepper motors. i have my unit running using 425 oz/in stepper motors with a xylotex controller and can achieve rapids at 90 IPM on both the z and x axis.
the x axis has a special bronze anti backlash nut for long wear life and rides on an acme screw
the z axis uses a 5/8 ball screw with dual ball nuts spring loaded with a custom preload adjuster so there is zero backlash on this axis as well.
This is a completely bolt on kit. no extra drilling required. the kit will come with all brackets needed to install it to the lathe. you can reuse your original mounting hardware and whatever stepper or servo motors you choose.
i will have some pics of the setup later this week.
Kits in this configuration will run $450.00 plus shipping.
thanks
Jerry