Lathe problem Acorn (Resolved)

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Mathes
Posts: 53
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Germany

Lathe problem Acorn (Resolved)

Post by 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
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cnckeith
Posts: 7164
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: none
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Contact:

Re: Lathe problem Acorn

Post by cnckeith »

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

viewtopic.php?f=61&t=1756&p=41917#p11479
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
Mathes
Posts: 53
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Germany

Re: Lathe problem Acorn

Post by 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
Posts: 237
Joined: Mon Nov 20, 2017 10:13 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC11: Yes
CPU10 or CPU7: Yes
Location: Frenchville, PA

Re: Lathe problem Acorn

Post by 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 .
Dana

When requesting support, please ALWAYS post a current report.
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Mathes
Posts: 53
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Germany

Re: Lathe problem Acorn

Post by Mathes »

Hello!

This was the problem!

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

Kind regards

Mathias
Mathes
Posts: 53
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Germany

Re: Lathe problem Acorn

Post by Mathes »

Hello!

This was the problem!

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

Kind regards

Mathias
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