Lathe problem Acorn (Resolved)

[Mathes]

Hello All,

I have a issue with my lathe.

I don`t understand what is happened....
When I use dthe dry run mode the tools find the correct positions.

Swopeing to the automatic mode after the faceing procedure the lathe moved to a undefind position.

And the DRO show me an offset to the real position, and run over the home and limit switch.

This issue is repeatable

Any ideas?

Thanks in advance!

Mathias

[cnckeith]

hello. sounds like tool offsets haven't been setup properly. please review these videos.

viewtopic.php?f=61&t=1756&p=41917#p11479

[Mathes]

Many thanks for the reply!
The wrong offset was my first idea, I have checked this several times and from my view it`s okay.
The tool move to the first correct x and z position, and after the zyklus the WCS is correct reached

I wonder me, I use the dry test mode, without the turning spindle and the positions of the tool is correct.
If I will produce chip, after the faceing the problem begin.

I have no idea why, I spent a lot of time…

Thanks in advance for your support!
Kind regards

Mathias

[cnc_smith]

The problem is in your g-code program line 29 the G99 with F25.0 - G1 X10.0 Z-1.0 G99 F25.0 - The rest of your program is using G98 feed per minute and this line has G99 feed per revolution. With the F25 you are loosing position because it it trying move at F25 per revolution not F25 feed per minute. The Dry Run mode when it runs it changes everything to feed per minute that is why Dry Run is working. It does not change your program just when it see G99's in the program it will convert them to G98 while processing the program under the Dry Run mode.

In your Intercon program in the Facing operation change your Finish feed rate from F/R to F/M. Unless you want the Feed per rev then change the Finish feed rate to .100 mm (.004") if you have encoder on the spindle. I did not take the time to look at your report at this time .

[Mathes]

Hello!

This was the problem!

Many thanks for your reply, I must learn a lot to handle the software....

Kind regards

Mathias

[Mathes]

Hello!

This was the problem!

Many thanks for your reply, I must learn a lot to handle the software....

Kind regards

Mathias