Hello all, this is my first post here so I hope that is ok. I figured I would start by introducing the project that has me interested in using a RPi to automate movement. I have a 1945 Craftsman 101.07403 lathe that is in excellent shape. I am a machinist and although I can use it as is, I believe that I can convert it to CNC without making any permanent modifications to the lathe. I have access to the necessary machines to manufacture the custom parts I want. My plan is to convert the lead screw and cross slide screws to ball screws. In order to not modify the lathe I plan to replace the apron with a new piece that will attach to the ball screw nut. To attach the ballscrew to the lathe I plan to make new bearing mounts, with the bearing mount on the headstock side including the mount for a NEMA 34. In order to automate the cross slide I plan to remove the stock bearing support/micrometer collar from the cross slide and making a bearing support for the ball screw. On the opposite side of the cross slide there are bolt holes for a taper attachment. I plan to use them as the bolt holes for the NEMA 23 and ball screw bearing supports.
I am a machinist now, for the six years before I became a machinist I was an Explosive Ordnance Disposal (EOD) technician. I have tinkered with electronics including soldering together electrical circuit board kits. I am definitely capable of putting the system together once I know what I actually need in order to make my dream come true. Here is a list of some of the items I have in mind for designing my system.
NEMA 34 - https://smile.amazon.com/stepper-Contro ... op+stepper
NEMA 23 - https://smile.amazon.com/Nema24-Stepper ... op+stepper
Power Supply - https://www.amazon.com/Switching-Supply ... +48v&psc=1