Lathe axis.

pingvin-man

Hello guys!

I'm sorry for my bad english.

I have the machine with 4th axis A.
So, at this moment this axis is programming only in absolutly mode. What I mean: if I use a spiral toolpath, axis A accumulates A coordinates and if the spiral has 100 twist - I get the coordinate A36000. It is bad situation.

Is it possible to change something in the controller? I want to use a different algorithm for the A axis. It must zero coordinate A when the angle reaches 360 degrees.

What should I change in the controller for the jump after 360 degree to 0 degree?

What I have now:

A358
A359
A360
A361
A.....

What I need:

A358
A359
A0
A1
A...

Thank you.

pingvin-man

ytliu Posted at 2018-9-11 06:36
You can insert the G92 command to meet your requirements.
A358
A359

Could you explain what does it mean G92?
In the standart ISO G-code it is the shift working system of coordinate.

pingvin-man

maxx2000 Posted at 2018-9-11 13:59
My friend, it's configurable in your CAM or postprocessor. In the settings you need to specify how y ...

In my life I wrote more then 50 postprocessors for real machines. Basically for 5-coordinate machines.
I know how to make it in the PP.
And I know as minimum 3 variant algoritm for the lathe axis.

But here is a question about the controller.

pingvin-man

In any way thank you for the answers.