Ghost in the machine (resolved, loose couplers)

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tuffduck
Posts: 116
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Location: Scotland, ON, Canada

Ghost in the machine (resolved, loose couplers)

Post by tuffduck »

Hi,
Ran the machine all day yesterday without a problem. Today I turned it on and all went well until I tried running programs. My circles started to become ovals. I posted my report and a pic. Any ideas what may be causing this? Thanks.
Attachments
IMG_20210428_165304.jpg
report_0479B7E7BDC2-0205202948_2021-04-28_16-44-41.zip
(1.95 MiB) Downloaded 7 times
slodat
Posts: 634
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Re: Ghost in the machine

Post by slodat »

Looks like losing steps or something is loose..
tuffduck
Posts: 116
Joined: Mon Mar 02, 2020 5:07 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: none
Location: Scotland, ON, Canada

Re: Ghost in the machine

Post by tuffduck »

Checked everything mechanically and all is tight. If it is losing steps all of a sudden after 6 months of running fine. Why?
cnckeith
Posts: 3302
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
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Re: Ghost in the machine

Post by cnckeith »

looks like classic drift caused by loose pulley(s) (motor pulley and screw pulley / rack pinion) on Y axis.

or the program is pushing the machine faster than the axis can physically go or somehow now more force is required or what it takes to move the axis.. in that case look for binding and tightness in the axis (check BOTH directions of movement)
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
tuffduck
Posts: 116
Joined: Mon Mar 02, 2020 5:07 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: none
Location: Scotland, ON, Canada

Re: Ghost in the machine

Post by tuffduck »

Thanks, I think this is the culprit. The set screws are tight but I notice a little jarring motion a couple of times. I will take it apart tomorrow and loctite the couplers to the shaft.
Attachments
IMG_20210428_185031.jpg
martyscncgarage
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Re: Ghost in the machine

Post by martyscncgarage »

You have a TON of PC/MPU resends. This usually equates to noise in the control or problems with the Ethernet port
You can see these errors by going F7 Utilties, F9 Logs, F1 Errors
You need to find the source of this issue. I don't know what type of machine you have all we can assume is it is a router.
Try turning off the spindle drive, run the program cutting air and then check the logs

An EXCERPT from your logs (these are really bad)
(4) 04-28-2021 16:34:20 944 MPU requested resend # 622
(4) 04-28-2021 16:34:20 946 PC resending # 25113
(4) 04-28-2021 16:34:20 946 PC resending # 25117
(4) 04-28-2021 16:34:20 944 MPU requested resend # 623
(4) 04-28-2021 16:34:20 946 PC resending # 25177
(4) 04-28-2021 16:34:22 944 MPU requested resend # 624
(4) 04-28-2021 16:34:22 946 PC resending # 25224
(4) 04-28-2021 16:34:23 944 MPU requested resend # 625
(4) 04-28-2021 16:34:23 944 MPU requested resend # 626
(4) 04-28-2021 16:34:23 946 PC resending # 25270
(4) 04-28-2021 16:34:23 946 PC resending # 25289
(4) 04-28-2021 16:34:24 944 MPU requested resend # 627
(4) 04-28-2021 16:34:24 946 PC resending # 25348
(4) 04-28-2021 16:34:24 944 MPU requested resend # 628
(4) 04-28-2021 16:34:24 946 PC resending # 25388
(4) 04-28-2021 16:34:26 944 MPU requested resend # 629
(4) 04-28-2021 16:34:26 946 PC resending # 25440
(4) 04-28-2021 16:34:27 944 MPU requested resend # 630
(4) 04-28-2021 16:34:27 946 PC resending # 25491
(4) 04-28-2021 16:34:27 944 MPU requested resend # 631
(4) 04-28-2021 16:34:27 946 PC resending # 25527
(4) 04-28-2021 16:34:28 944 MPU requested resend # 632
(4) 04-28-2021 16:34:28 946 PC resending # 25585
(4) 04-28-2021 16:34:29 944 MPU requested resend # 633
(4) 04-28-2021 16:34:29 944 MPU requested resend # 634
(4) 04-28-2021 16:34:29 946 PC resending # 25636
(4) 04-28-2021 16:34:29 944 MPU requested resend # 635
(4) 04-28-2021 16:34:29 946 PC resending # 25681
(4) 04-28-2021 16:34:29 944 MPU requested resend # 636
(4) 04-28-2021 16:34:30 946 PC resending # 25708
(4) 04-28-2021 16:34:30 944 MPU requested resend # 637
(4) 04-28-2021 16:34:30 946 PC resending # 25739
(4) 04-28-2021 16:34:30 944 MPU requested resend # 638
(4) 04-28-2021 16:34:30 946 PC resending # 25810
(4) 04-28-2021 16:34:31 944 MPU requested resend # 639
(4) 04-28-2021 16:34:32 946 PC resending # 25853
(4) 04-28-2021 16:34:32 944 MPU requested resend # 641
(4) 04-28-2021 16:34:32 946 PC resending # 25893
(4) 04-28-2021 16:34:32 946 PC resending # 25903
(4) 04-28-2021 16:34:33 944 MPU requested resend # 643
(4) 04-28-2021 16:34:33 946 PC resending # 25962
(4) 04-28-2021 16:34:33 946 PC resending # 26016
(4) 04-28-2021 16:34:34 944 MPU requested resend # 644
(4) 04-28-2021 16:34:34 946 PC resending # 26077
(4) 04-28-2021 16:34:35 944 MPU requested resend # 645
(4) 04-28-2021 16:34:35 946 PC resending # 26135
(4) 04-28-2021 16:34:35 944 MPU requested resend # 646
(4) 04-28-2021 16:34:35 946 PC resending # 26149
(4) 04-28-2021 16:34:36 944 MPU requested resend # 647
(4) 04-28-2021 16:34:36 944 MPU requested resend # 648
(4) 04-28-2021 16:34:36 946 PC resending # 26208
(4) 04-28-2021 16:34:36 946 PC resending # 26246
(4) 04-28-2021 16:34:38 944 MPU requested resend # 649
(4) 04-28-2021 16:34:38 946 PC resending # 26258
(4) 04-28-2021 16:34:38 944 MPU requested resend # 650
(4) 04-28-2021 16:34:38 946 PC resending # 26317
(4) 04-28-2021 16:34:38 946 PC resending # 26318
(4) 04-28-2021 16:34:40 944 MPU requested resend # 651
(4) 04-28-2021 16:34:40 946 PC resending # 26372
(4) 04-28-2021 16:34:41 944 MPU requested resend # 652
(4) 04-28-2021 16:34:41 946 PC resending # 26401
(4) 04-28-2021 16:34:41 944 MPU requested resend # 653
(4) 04-28-2021 16:34:41 946 PC resending # 26431
(4) 04-28-2021 16:34:41 944 MPU requested resend # 654
(4) 04-28-2021 16:34:41 946 PC resending # 26504
(4) 04-28-2021 16:34:41 944 MPU requested resend # 655
(4) 04-28-2021 16:34:41 946 PC resending # 26549
(4) 04-28-2021 16:34:42 944 MPU requested resend # 656
(4) 04-28-2021 16:34:42 946 PC resending # 26577
(4) 04-28-2021 16:34:42 944 MPU requested resend # 657
(4) 04-28-2021 16:34:42 946 PC resending # 26616
(4) 04-28-2021 16:34:43 944 MPU requested resend # 658
(4) 04-28-2021 16:34:43 946 PC resending # 26631
(4) 04-28-2021 16:34:44 944 MPU requested resend # 659
(4) 04-28-2021 16:34:44 946 PC resending # 26686
(4) 04-28-2021 16:34:44 944 MPU requested resend # 660
(4) 04-28-2021 16:34:44 946 PC resending # 26693
(4) 04-28-2021 16:34:45 944 MPU requested resend # 661
(4) 04-28-2021 16:34:45 944 MPU requested resend # 662
(4) 04-28-2021 16:34:45 946 PC resending # 26753
(4) 04-28-2021 16:34:46 944 MPU requested resend # 663
(4) 04-28-2021 16:34:46 946 PC resending # 26789
(4) 04-28-2021 16:34:46 944 MPU requested resend # 664
(4) 04-28-2021 16:34:46 946 PC resending # 26809
(4) 04-28-2021 16:34:47 944 MPU requested resend # 665
(4) 04-28-2021 16:34:48 946 PC resending # 26848
(4) 04-28-2021 16:34:49 944 MPU requested resend # 666
(4) 04-28-2021 16:34:49 946 PC resending # 26895
(4) 04-28-2021 16:34:50 944 MPU requested resend # 667
(4) 04-28-2021 16:34:50 946 PC resending # 26924
(4) 04-28-2021 16:34:50 944 MPU requested resend # 668
(4) 04-28-2021 16:34:50 946 PC resending # 26949
(4) 04-28-2021 16:34:51 944 MPU requested resend # 669
(4) 04-28-2021 16:34:51 946 PC resending # 26978
(4) 04-28-2021 16:34:51 944 MPU requested resend # 670
(4) 04-28-2021 16:34:51 946 PC resending # 26999
(4) 04-28-2021 16:34:51 944 MPU requested resend # 671
(4) 04-28-2021 16:34:51 946 PC resending # 27049
(4) 04-28-2021 16:34:52 944 MPU requested resend # 672
(4) 04-28-2021 16:34:52 946 PC resending # 27091
(4) 04-28-2021 16:34:52 944 MPU requested resend # 674
(4) 04-28-2021 16:34:52 946 PC resending # 27130
(4) 04-28-2021 16:34:52 946 PC resending # 27137
(4) 04-28-2021 16:34:53 944 MPU requested resend # 676
(4) 04-28-2021 16:34:53 946 PC resending # 27177
(4) 04-28-2021 16:34:53 946 PC resending # 27196
(4) 04-28-2021 16:34:54 944 MPU requested resend # 677
(4) 04-28-2021 16:34:54 946 PC resending # 27225
(4) 04-28-2021 16:34:54 946 PC resending # 27245
(4) 04-28-2021 16:34:55 944 MPU requested resend # 678
(4) 04-28-2021 16:34:55 946 PC resending # 27306
(4) 04-28-2021 16:34:55 944 MPU requested resend # 679
(4) 04-28-2021 16:34:55 946 PC resending # 27341
(4) 04-28-2021 16:34:56 944 MPU requested resend # 680
(4) 04-28-2021 16:34:56 944 MPU requested resend # 681
(4) 04-28-2021 16:34:56 946 PC resending # 27400
(4) 04-28-2021 16:34:56 946 PC resending # 27454
(4) 04-28-2021 16:34:58 944 MPU requested resend # 682
(4) 04-28-2021 16:34:58 946 PC resending # 27514
(4) 04-28-2021 16:34:59 944 MPU requested resend # 683
(4) 04-28-2021 16:34:59 946 PC resending # 27574
(4) 04-28-2021 16:35:01 944 MPU requested resend # 684
(4) 04-28-2021 16:35:01 946 PC resending # 27625
(4) 04-28-2021 16:35:04 944 MPU requested resend # 685
(4) 04-28-2021 16:35:04 946 PC resending # 27675
(4) 04-28-2021 16:35:04 944 MPU requested resend # 687
(4) 04-28-2021 16:35:04 946 PC resending # 27729
(4) 04-28-2021 16:35:05 946 PC resending # 27741
(4) 04-28-2021 16:35:05 944 MPU requested resend # 688
(4) 04-28-2021 16:35:05 946 PC resending # 27781
(4) 04-28-2021 16:35:07 944 MPU requested resend # 690
(4) 04-28-2021 16:35:07 946 PC resending # 27827
(4) 04-28-2021 16:35:07 946 PC resending # 27858
(4) 04-28-2021 16:35:07 944 MPU requested resend # 691
(4) 04-28-2021 16:35:07 946 PC resending # 27860
(4) 04-28-2021 16:35:08 944 MPU requested resend # 692
(4) 04-28-2021 16:35:08 944 MPU requested resend # 694
(4) 04-28-2021 16:35:08 946 PC resending # 27944
(4) 04-28-2021 16:35:08 944 MPU requested resend # 695
(4) 04-28-2021 16:35:08 946 PC resending # 27991
(4) 04-28-2021 16:35:09 944 MPU requested resend # 696
(4) 04-28-2021 16:35:09 946 PC resending # 28026
(4) 04-28-2021 16:35:11 944 MPU requested resend # 697
(4) 04-28-2021 16:35:11 946 PC resending # 28061
(4) 04-28-2021 16:35:12 944 MPU requested resend # 698
(4) 04-28-2021 16:35:12 946 PC resending # 28113
(4) 04-28-2021 16:35:13 944 MPU requested resend # 699
(4) 04-28-2021 16:35:13 946 PC resending # 28163
(4) 04-28-2021 16:35:13 944 MPU requested resend # 700
(4) 04-28-2021 16:35:13 946 PC resending # 28192
(4) 04-28-2021 16:35:13 944 MPU requested resend # 701
(4) 04-28-2021 16:35:13 944 MPU requested resend # 702
(4) 04-28-2021 16:35:13 946 PC resending # 28231
(4) 04-28-2021 16:35:13 946 PC resending # 28264
(4) 04-28-2021 16:35:14 944 MPU requested resend # 704
(4) 04-28-2021 16:35:14 946 PC resending # 28311
(4) 04-28-2021 16:35:14 946 PC resending # 28330
(4) 04-28-2021 16:35:16 944 MPU requested resend # 705
(4) 04-28-2021 16:35:16 946 PC resending # 28379
(4) 04-28-2021 16:35:16 944 MPU requested resend # 707
(4) 04-28-2021 16:35:16 946 PC resending # 28411
(4) 04-28-2021 16:35:16 946 PC resending # 28423
(4) 04-28-2021 16:35:17 944 MPU requested resend # 708
(4) 04-28-2021 16:35:17 946 PC resending # 28472
(4) 04-28-2021 16:35:18 944 MPU requested resend # 710
(4) 04-28-2021 16:35:18 946 PC resending # 28527
(4) 04-28-2021 16:35:18 946 PC resending # 28533
(4) 04-28-2021 16:35:18 944 MPU requested resend # 712
(4) 04-28-2021 16:35:18 946 PC resending # 28595
(4) 04-28-2021 16:35:19 946 PC resending # 28640
(4) 04-28-2021 16:35:19 944 MPU requested resend # 713
(4) 04-28-2021 16:35:19 946 PC resending # 28684
(4) 04-28-2021 16:35:19 944 MPU requested resend # 714
(4) 04-28-2021 16:35:19 946 PC resending # 28687
(4) 04-28-2021 16:35:19 944 MPU requested resend # 715
(4) 04-28-2021 16:35:19 946 PC resending # 28757
(4) 04-28-2021 16:35:20 944 MPU requested resend # 716
(4) 04-28-2021 16:35:20 944 MPU requested resend # 717
(4) 04-28-2021 16:35:20 946 PC resending # 28813
(4) 04-28-2021 16:35:20 946 PC resending # 28852
(4) 04-28-2021 16:35:21 944 MPU requested resend # 719
(4) 04-28-2021 16:35:21 946 PC resending # 28907
(4) 04-28-2021 16:35:22 944 MPU requested resend # 720
(4) 04-28-2021 16:35:22 946 PC resending # 28949
(4) 04-28-2021 16:35:24 944 MPU requested resend # 721
(4) 04-28-2021 16:35:24 946 PC resending # 29011
(4) 04-28-2021 16:35:24 944 MPU requested resend # 722
(4) 04-28-2021 16:35:24 946 PC resending # 29039
(4) 04-28-2021 16:35:26 944 MPU requested resend # 723
(4) 04-28-2021 16:35:26 946 PC resending # 29080
(4) 04-28-2021 16:35:26 944 MPU requested resend # 724
(4) 04-28-2021 16:35:26 946 PC resending # 29116
(4) 04-28-2021 16:35:26 944 MPU requested resend # 725
(4) 04-28-2021 16:35:26 946 PC resending # 29120
(4) 04-28-2021 16:35:27 944 MPU requested resend # 726
(4) 04-28-2021 16:35:27 946 PC resending # 29156
(4) 04-28-2021 16:35:28 944 MPU requested resend # 728
(4) 04-28-2021 16:35:28 946 PC resending # 29208
(4) 04-28-2021 16:35:28 946 PC resending # 29231
(4) 04-28-2021 16:35:29 944 MPU requested resend # 730
(4) 04-28-2021 16:35:29 946 PC resending # 29294
(4) 04-28-2021 16:35:29 944 MPU requested resend # 731
(4) 04-28-2021 16:35:29 946 PC resending # 29335
(4) 04-28-2021 16:35:30 944 MPU requested resend # 733
(4) 04-28-2021 16:35:30 946 PC resending # 29393
(4) 04-28-2021 16:35:30 946 PC resending # 29438
(4) 04-28-2021 16:35:31 944 MPU requested resend # 735
(4) 04-28-2021 16:35:31 946 PC resending # 29496
(4) 04-28-2021 16:35:31 946 PC resending # 29540
(4) 04-28-2021 16:35:31 944 MPU requested resend # 736
(4) 04-28-2021 16:35:31 944 MPU requested resend # 737
(4) 04-28-2021 16:35:31 946 PC resending # 29588
(4) 04-28-2021 16:35:32 946 PC resending # 29612
(4) 04-28-2021 16:35:32 944 MPU requested resend # 738
(4) 04-28-2021 16:35:32 946 PC resending # 29650
(4) 04-28-2021 16:35:32 944 MPU requested resend # 739
(4) 04-28-2021 16:35:32 946 PC resending # 29684
(4) 04-28-2021 16:35:33 944 MPU requested resend # 740
(4) 04-28-2021 16:35:33 946 PC resending # 29717
(1) 04-28-2021 16:44:41 Creating report...
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
tuffduck
Posts: 116
Joined: Mon Mar 02, 2020 5:07 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: none
Location: Scotland, ON, Canada

Re: Ghost in the machine

Post by tuffduck »

Hi Marty,
Yes, the machine is a router.
I I did the following:

You need to find the source of this issue. I don't know what type of machine you have all we can assume is it is a router.
Try turning off the spindle drive, run the program cutting air and then check the logs.

It looks like it is outputting resend requests even when the spindle is off.
Could this mean it is the ethernet cable?
cnckeith
Posts: 3302
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: Ghost in the machine

Post by cnckeith »

are you using a shielded cable?
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
tuffduck
Posts: 116
Joined: Mon Mar 02, 2020 5:07 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: none
Location: Scotland, ON, Canada

Re: Ghost in the machine

Post by tuffduck »

I am using the cable that came with the acorn card.
ShawnM
Posts: 432
Joined: Fri May 24, 2019 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: 7804734C6498-0401191832
Location: Clearwater, FL

Re: Ghost in the machine

Post by ShawnM »

Is the ethernet cable routed anywhere near your incoming power, assuming 220v?

When you say the spindle is off, did you unplug the spindle connector with the VFD still powered on and getting a signal from Acorn or did you power off the VFD or disconnect the SPIN FWD wire? You can still get noise with the VFD running without the spindle wire hooked up. Make sense?
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