Guru
Joined: 22/02/2006
Location: AustraliaPosts: 2080
| Posted: 07:31am 16 Apr 2026 |
Ok Guy's the whole point of this project is to make a state machine so I can run my old Macson surface grinder.
Now the inherent problem is with the Z axis on this machine where the lead screw has a heap of backlash and when setting the grinding wheel doing 2,000 RPM it tends to jump and I have already broken a grinding wheel trying to use this machine.
This is where a ball screw can come into play for the Z axis so if needed a step by step can set the cut then the DRO on the screen can be set to zero where the predetermined cut is done.
I do have a 2 pole 3 phase motor for this project and a Delta VFD so the motor can run off single phase and the best part the Delta VFD does have a serial interface where the hertz can be changed so the speed once calibrated can be dialed in using the G-code.
Now the X axis rack and pinion drive and as it's only going back and forth I can machine the stepper mount off the original handle and fabricate up the securing mount for the stepper motor.
The Y axis in operation is going to increment in steps every forward pass depending on the width of the grinding wheel.
Now here is a pic of my test setup
For now the 3.5" touch screen can do while the code is built up and as there are so many spare pins I do think a 9" touchscreen in 16 bit mode as reading in the manual today 16 bit can be done. I do need to order more dupoint cables for this project so no rush as I have been thinking about this project for a long time.
Regards Bryan