[kNucklBustr]

The stepper will turn a horizontal Ellis Divider- 40:1
8 divisions or 45deg
The Gcode Ive written
G0 G90 G20
A45 F200
M30
222.222 is written in Motor Tuning-A axis-Steps per

Lets say after drilling #3 hole and I need to go back to #1 position,
What code is needed to make the stepper turn back, CCW, to #1 position ?

This is my first attempt at Cnc and Mach3.
All is wired up on my bench.
PS
Stop switch
Gecko 540
Keling 23/382oz-1.8° /200 Steps Per Rev
Mach3

[ger21]

G0 A-45
??

[Al_The_Man]

G90 is absolute, wouldn't it be A0?
G91 -45 if relative?
Al.

[kNucklBustr]

Ive typed G90 A0 and G91 -45 in MDI, the stepper still goes CW. but the ref counter 4 goes to 0 (zero)

[Al_The_Man]

Sounds like the step is working, but the dir signal is not changing?
Al.

[kNucklBustr]

In Ports/Pins- Motor Output
A-enabled, Step pin 8, Dir pin 9, Dir Low ckd, Step Low ckd,
Step port 1, Dir port 1.

Is this relative?

[Al_The_Man]

May have to monitor the status of the pin, either at the PP or at the drive and see if it changes with direction?
Al.

[ger21]

There are a couple checkboxes in General config that mat need to be changed. Something about rollover (don't have Mach on this PC)

[kNucklBustr]

Under Ports/Pins>Motor Outputs>A axis, I changed Step Low Active to Disabled and it worked.

Dont understand why it does this.

G0 A45 CW
G0 A-45 CCW

I have cheat sheets w/ all G and M codes.
and by modal groups.
But is there any reference for definitions in understandable terms?

[kNucklBustr]

There are a couple checkboxes in General config that mat need to be changed. Something about rollover (don't have Mach on this PC)

In Gen Config>Rotational there is Rot 360 rollover, Ang Short Rot on G0 and Rotational Soft Limits which is ckd by default.