Need some ideas on how to set up a home built OD/can grinder

Thanks Andy

I will look into using G10 to set the offsets.

MarkD

I added a two channel encoder (A and Z). The encoder consists of a 4 inch diameter wheel with 90 holes and a single hole for the index.
While updating the HAL file I tried to clean up so as to be able to make sense of the code. Searching for a example of a stepper spindle example failed.
The resulting Hal files do not give errors but the spindle is not functioning. Can someone look at the Hal files to see what I missed?

I ran into a snag, the hard drive i was using died and took my work with it. Linuxcnc is back up and running but I have some problems.
Problem one the requested speed six times greater than the actual speed (the actual speed is correct) the scale should be 8.89 but requires 6 times that for the correct rpm to be achieved.
Problem two the at speed led never goes green.

Can someone give me a hint as to how to fix these

200 * 2 (40t / 20t) 8 (microsteps) = 3200 /360 = 8.89 steps per degree

I tried to find a way around the need for the x6 for the scaler but to no avail. The stepgen.3.step is 600 for 100 RPM. I set the RPM at 60 to measure the stepgen period which measured ~320 microseconds which equates to ~3200 steps per rev. At this point the spindle works so I will move on to adding the U & W axis to the configuration.

I will try to find the scaling problem as I learn more.