[BUG] Erratic extruder action #27126
Comments
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that jump scare at the end... have you changed anything regarding the motor recently? does a previous firmware version work? |
I regressed to a bugfix from January 12, which works fine. Definitely a Marlin issue. Same_Gcode_January_Marlin.MOV |
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well you have a commit that works and one that doesn't, I suggest you try a git bisect and track down the exact commit that changed the behavior. |
Not practical. There is a roughly 4 month window between January and May of this year when the Marlin bugfixes did not work at all on my delta. Only with last weeks bugfix did the machine actually begin to try to operate properly, but still has extrusion issues. So I can say that the January 12 bugfix worked, and everything after that was unuseable until last week. |
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well if the Jan 12 bugfix worked then you can try to either check the next commit which may be the issue in question, compile flash and test from there. it would be tedious to do this for every other commit, BUT what you can do (as I've done) was pick a bugfix halfway between it started acting this way, to the one that actually worked well. if you do this and split each timeframe in half you may only need to do this several times. unless you get lucky. |
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Git bisect is well designed, it eliminates half the commits every iteration. you would only have to test approximately 7 times ... Data we have Ie to do a git bisect Which tells you "Bisecting: 149 revisions left to test after this (roughly 7 steps)" There are only 300 commits and 78 of those are just cron updating the distribution date Ie it has to be in one of these Click mecommit 6710616 commit 2064c83 commit 4f85f88 commit 3ee1248 commit e3bbacd commit f915371 commit ea848aa commit 5157849 commit ca31f97 commit 78d3cf1 commit 521e7ea commit 5f32698 commit 0b8ec2a commit 578bdd4 commit 6b6865d commit 6c018eb commit 5561baf commit 75eee04 commit ee1d1fa commit dbd3e10 commit fde330a commit e8d9532 commit cc86e9e commit 5a6db51 commit d87a0ea commit 0e2bd06 commit feca9a3 commit eec1aec commit a97d108 commit a7317de commit 4f3ebea commit fa88e0f commit 2fd7c2b commit ef0bd97 commit bdc14dd commit 383e6f4 commit a33112a commit f320c2a commit 6eedeae commit 6b5e19c commit 3dc437a commit 5f96dff commit 6423b80 commit a2daee8 commit 909e3ad commit 556616c commit 46e426c commit f5f6c37 commit 08fe8a3 commit 4a5bd47 commit 774cecc commit 83b7e32 commit 1da947f commit a3960df commit 4934871 commit 39f53c3 commit f5cf667 commit f56952c commit ca5a7be commit a805872 commit a2f024f commit 75cda8d commit 2270bf4 commit 489ef6e commit cecc745 commit a1ecea6 commit 882421a commit a36f72e commit 247e989 commit a955e06 commit d773570 commit 556da2b commit 9e19a6e commit f433b2c commit bc0d7d7 commit 9a8fb80 commit ca12459 commit e1ab911 commit 58d4494 commit d502e5b commit b4a95db commit dba0010 commit 90667f6 commit 07ebb81 commit 9342dae commit 3326c74 commit 0269106 commit 95d38a8 commit dca6afc commit 19684f2 commit 52a5613 commit 1bb4a04 commit d10861e commit cf7c86d commit d99e150 commit 71d9a3e commit 6575dcc commit 2715e5b commit 1b091ec commit 80dd02f commit e675545 commit 9215bf7 commit a3434de commit 2bf56b0 commit c31d9e7 commit d9d7820 commit 9343247 commit 351a1a1 commit d1cf817 commit c91771a commit a337a43 commit 77f93e0 commit 7dc7195 commit 56773bd commit 390f1f7 commit d30fcb8 commit 7b6b6e1 commit 60f2837 commit 87e94f4 commit 466282f commit 0b9f487 commit d3e1a92 commit cd357b0 commit eb897e6 commit 3ee3964 commit aecfb25 commit 075f96d commit ea6a891 commit 983aee5 commit a50490b commit 4b01c90 commit c1be36b commit e0222d3 commit c0264ae commit 3a2c50c commit 3b4adac commit d36b3fb commit bca40e0 commit 5042198 commit ec6f9dd commit b9cfbaa commit 3fd175a commit a9e72b2 commit ecde3a3 commit c8d51c2 commit 982b425 commit 9974327 commit 8d7be79 commit 76b5688 commit 20c6a62 commit 1d295f7 commit 669814d commit 4aa48be commit 0829a51 commit a3c78c4 commit a321125 commit 005d687 commit e61a84a commit b12340b commit ec46a59 commit 5003681 commit d939692 commit 1dee4d9 commit 9364cbb commit 755b661 commit e6837b2 commit c476e62 commit 9a5cfb3 commit 5a87bea commit f9d5ee0 commit 1c6cfc3 commit 0266e7f commit 610ea0a commit 5639237 commit 7a4d601 commit ebea672 commit ce8535f commit afc2dd6 commit 5768b42 commit 01094ea commit 6c1fd1f commit 4f65466 commit 9b31193 commit 8594e94 commit 16acb57 commit 04c8a31 commit 3856037 commit ffbf4a6 commit cbc674f commit 97546bf commit ed1391e commit 7fbd9ec commit 6398902 commit e668d5a commit 3ef192e commit 5fea79f commit 18e65f5 commit 5ed6bf6 commit d79bcef commit f1a5340 commit 4309e6a commit aa7d571 commit 604d3e8 commit 22fc07d commit dd3b5a1 commit 204de72 commit 80cd89d commit 624226c commit 3adf73a commit d7e4536 commit da96607 commit fb49645 commit 7d751a2 commit 0df25b1 commit cef623b commit 12434e7 commit c313811 commit 1f1ca34 commit 8d4ab15 commit 3019af1 commit b2fd631 commit ab34971 |
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Can you provide a test gcode that is known to exhibit the issue? |
Sliced in Cura 5.5.0 and used in both of the above videos. |
I'm all too familiar with bisecting releases, but the release has to actually compile and run (at least to some extent) on the printer. Until just last week, that was not the case for any bugfix after Jan. 12 for my delta printer. |
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I suppose then there may be more than one issue.
can you post what sort of errors youre getting that isnt letting you compile? |
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The 2.1.x bugfix of May 30 still shows this erratic extrusion. However, the patched 2.1.2.3 release not only works fine but also has all three digits after the decimal in the standard deviation displays (a seperate but concerning issue). |
Did you test the latest
bugfix-2.1.xcode?Yes, and the problem still exists.
Bug Description
The latest bugfix (May 24, 2024) now works on my delta. Calibration and M48 now works, BUT the extruder is very erratic.
Bug Timeline
New
Expected behavior
The extuder should respond to the g-code commands.
Actual behavior
While the x, y, and z axes seem to be functional, the extruder acts as if it is receiving enable pulses that are too short, or as if its current is too low. The extruder is driven by an A4988, so this is not a driver issue. The extruder randomly vibrates, moves forward, then backwards (even though there are no retracts called for).
Earlier Marlin works fine with the same g-code.. This is a recent bugfix problem.
Steps to Reproduce
Version of Marlin Firmware
latest bugfix (May 24, 2024)
Printer model
Anycubic Predator
Electronics
stock Trigorilla Pro STM32f103ZETA
LCD/Controller
Anycubic 3.5 TFT
Other add-ons
none
Bed Leveling
None
Your Slicer
Cura
Host Software
None
Don't forget to include
Configuration.handConfiguration_adv.h.Additional information & file uploads
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Configs.zip
FullSizeRender.MOV
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