threading issues after update <not update related, resolved>

All things related to the Centroid Acorn CNC Controller

Moderator: cnckeith

Mathes
Posts: 52
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
Location: Germany

threading issues after update <not update related, resolved>

Post by Mathes »

Hello all,

after updating to the newest acorn version I have bigger issues with the treading.
The machine cut the thread, it seems that the turn per mm are not well calculated. I never have this problem before.
I restore the old report and everything works well, but not the thread cycle.
Any ideas?

Thanks in advance for your reply and help.

Mathias
suntravel
Posts: 843
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 6433DB0446C1-08115074
Location: Germany

Re: threading issues after update

Post by suntravel »

Do not restore an report from an old version.

4.80 installed fresh threads perfect.

Uwe
cnckeith
Posts: 4665
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
MPU11 & GPIO4D -w/ 3rd Party Drives: Yes
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Contact:

Re: threading issues after update

Post by cnckeith »

Mathes wrote: Wed Sep 14, 2022 12:43 pm Hello all,

after updating to the newest acorn version I have bigger issues with the treading.
The machine cut the thread, it seems that the turn per mm are not well calculated. I never have this problem before.
I restore the old report and everything works well, but not the thread cycle.
Any ideas?

Thanks in advance for your reply and help.

Mathias
post the old version report.zip

and the new version report.zip so we can see the control configuration of each
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: 52
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
Location: Germany

Re: threading issues after update

Post by Mathes »

Hello,

enclosed you an find both reports.

Thanks for your help!

Mathias
cnckeith
Posts: 4665
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
MPU11 & GPIO4D -w/ 3rd Party Drives: Yes
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Contact:

Re: threading issues after update

Post by cnckeith »

hello. the old report shows v4.5 . Typically 'restore report' is only recommended to be used with one version back (i.e. v4.6x to V4.8x) v4.5 to v4.8 is actually a big jump alot of features have been added and updated. so it is best to do a fresh install of v4.8. to do this...

rename the old v4.5 cnct directory to 'cnct'
start v4.5
open the wizard
make screen shots of all the Wizard pages and save them in a folder on the desktop

now follow the fresh install instructions for v4.8
open the v4.8 Wizard and hand enter in the values from the v.4.5 screen shots.
press "Write Settings to CNC control" and follow instructions on the screen.
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: 52
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
Location: Germany

Re: threading issues after update

Post by Mathes »

Hello,
thank you for the reply!
I have done a completely new installation without using a report. But without any success, the thread flanks thread is cut away over every depth cycle.
I don’t know whats going wrong, I never had this problem before.
Some ideas?
Thanks in advance for your support!
Mathias
suntravel
Posts: 843
Joined: Thu Sep 23, 2021 3:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 6433DB0446C1-08115074
Location: Germany

Re: threading issues after update

Post by suntravel »

Sounds like a problem with the encoder or z-axis.

Uwe
Mathes
Posts: 52
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
Location: Germany

Re: threading issues after update

Post by Mathes »

Hello,

any idea how I can check the correct function of the encoder?

The Z axis work well during a normal lathe application.

Thanks in advance!

Mathias
cnckeith
Posts: 4665
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
MPU11 & GPIO4D -w/ 3rd Party Drives: Yes
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Contact:

Re: threading issues after update

Post by cnckeith »

in the PID screen check the encoder counts per rev, and look for the marker pulse to show up as and asterisk beside the encoder reading. note you have to turn spindle real slow to catch this.
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: 52
Joined: Sat Aug 29, 2020 8:34 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: Acorn E415F6F6BFF1/0503203220 Colchester Lathe
and a Deckel FP1 with Acorn, both with WMPG
Location: Germany

Re: threading issues after update

Post by Mathes »

Hello,
I found the reason., the encoder counts the ppr only during low speed correctly.
In high-speed mode the encoder counts wrong. Changing the encoder everything works well.
Thanks for your support.
Mathias
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