Stepper Project

Author Message
Bryan1

Guru

Joined: 22/02/2006
Location: Australia
Posts: 2080
Posted: 12:25am 17 Apr 2026      

As this surface grinder is fully manual my idea of automating it does make sense so the grinder is more efficient.

Now going a damper on the Z axis could work but I already have a ball screw that is suitable to fit. I got this off an old Hercus cnc lathe and length wise it will fit easily.

Now I commented out the pin setting code and tried again.

Stepper initialized - 100KHz timer active
Warning: Soft limits not configured. Use STEPPER LIMITS to set working area.
Stepper armed - executing buffered commands
[33] Stepper Axis X, GP27, GP25, GP26, 1, 800, 100, 100
Error : Pin 32/GP27 is in use


Now I commented out the const for the and got the same error.

On error skip
Stepper close
Stepper Init 0.05, 150, GP22

'setpin GP27, Dout
'setpin GP25, dout
'setpin gp26, dout

'const dir = "GP25"
'const steppin = "GP27"
'const enable = "GP26"
const E_Stop = "GP22"

const FEED_MAX = 6
const FEED_DEFAULT_ON = 2
const UNIT_MM = 2
Const STEP_FEEDRATE = 200
const PRIME_STEP_MM = 5

do


RunStepper

loop


Sub RunStepper

Stepper Axis X, GP27, GP25, GP26, 1, 800, 100, 100
Stepper Position X, 0.1
Stepper run 1
Stepper gc g1 x0 f100
Stepper gc g1 x100 f100
Stepper gc g1 x0 f100
end sub


So not sure whats going on here as I let Stepper Axis assign the pins
Edited 2026-04-17 10:32 by Bryan1