Some of the first steps are outlined here.
- Check out the mechanics
- Do some calculations and design the motor mounts
- Remove the old motors and feedback devices
- Feedback devices are all removed.
- X motor needs extracted
- Take measurements
- Do some calculations to pick a good pulley ratio
- Existing ratios are 4:1
- We probably can’t easily get 4:1, but we also don’t need that high of a ratio.
- Go for 3:1 by replacing motor pulleys (OD’s are too small for us to salvage them)
- Any ratio close to 3:1 will be fine.
- Make the required parts to adapt the motors to the lathe.
- Clean out the old wiring
- All of the servo/motor/tach/feedback wiring can go.
- Need to trace out and salvage home and overtravel switches.
- Trace out all digital I/O sensors and actuators, adapt them to 24v I/O as needed.
- Figure out the spindle drive/motor – salvage what still works, if anything.
- If the drive works, or seems like it is fixable, fix it.
- If the drive can’t be salvaged, attempt to salvage the motor.
- The motor works. Jeff hooked a battery to it and it runs fine.
- Find a modern drive suitable to drive the existing motor.
- Servo drives have been removed, along with the power supply.