Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: lemo on May 06, 2007, 11:55:11 AM

Title: A-Axis direction problem
Post by: lemo on May 06, 2007, 11:55:11 AM

I can jog the a-axis clockwise and counter clockwise.

When I set my sherline table to the zero indicator and issue 'G0A10' the table moves clockwise to the 350 indicator. That is correct.
After that I issue 'G0A0' and the table positions back to the Zero indicator while turning counter clockwise. That is correct as well.
Now I issue 'G0A-10' an the table moves clockwise to the 350 indicator. That is WRONG. It should turn counter clockwise to the 10 degree indicator on the table. What am I doing wrong?

Settings are:
a-Axis angular
Rot 360 rollover
Ang short Rot on G0

However, I could not find any documentation regarding the 'Rot 360 Rollover' and the 'Ang short Rot on G0' settings and have to guess there.

Ideas?
Lemo

Title: Re: A-Axis direction problem
Post by: fdos on May 06, 2007, 12:08:52 PM

Are you running in Absolute or Incremental mode?

Try issuing a G90 before you try your commands above.

Wayne....

Title: Re: A-Axis direction problem
Post by: lemo on May 06, 2007, 12:15:00 PM

I might be in 'absolute'. When I issue G1A10 it goes to 10TableDegrees. If I issue A350 it rotates to 350TableDegrees clockwise and if I issue A-350 instead it turns counter clockwise to 350TableDegrees.
That makes sense to me. Now.... my G-Code I got is incremental... I go and search for the incremental setting.
Thanks!
Lemo