Missing Steps - Cant Print SpreadCycle StealthChop tuning help
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@carcamerarig could part of the issue be related to this:
https://forum.duet3d.com/topic/21108/stall-detection-on-duet-3-mini -
Thanks for the link and trying to lend an assist. Myself and a few others are trying to get our heads around this issue with the OP. I have a new build that will use the Mini as well, and our friends with the 3H full board is lending a hand - but we just cant seem to get things working as they should.
Homing is sorted ... however; after we take him out of stealthchop via M569 D2 parameter after homing- hes still missing steps and getting layer shifts in very easy prints - no major torque stress - no blobs - not nozzle impacts - just infill moves.
There really has to be a better way to tune these .9* motors and these drivers - this nonsense has been going on for days now ...
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@carcamerarig Your video (posted earlier) does not seem to be accessible, at least it isn't for me.
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@gloomyandy said in SpreadCycle / StealthChop tuning / configuring help:
@carcamerarig Your video (posted earlier) does not seem to be accessible, at least it isn't for me.
should be I just checked, links set to anyone with link, anyone else not able to see it?
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@t3p3tony said in SpreadCycle / StealthChop tuning / configuring help:
@carcamerarig could part of the issue be related to this:
https://forum.duet3d.com/topic/21108/stall-detection-on-duet-3-miniHonestly I have no clue now, that thread went cold with no definitive outcome, I asked if the Gcode dictionary reflected the updated comments?
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I've tried helping @carcamerarig on this issue, maybe I can give my take on what's going on. We believe we have homing with stallguard figured out, but that's not the main issue.
The issue is during fast moves, the printer will stutter causing a thump sound, resulting in a layer shift. The nozzle is not hitting the print or other obstruction.
I thought originally this may be caused by the switchover from stealtchop to spreadcyce. However forcing the machine into spreadcycle after homing did not alleviate the issue during a print. @carcamerarig Can you post a link to the video showing the problem?
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@ctilley79 @carcamerarig does it still do the thump with mesh bed levelling disabled? Could be a slow Z axis movement is stopping X Y movement.
Ian
Bed-slinger - Mini5+ WiFi/1LC | RRP Fisher v1 - D2 WiFi | Polargraph - D2 WiFi | TronXY X5S - 6HC/Roto | CNC router - 6HC | Tractus3D T1250 - D2 Eth
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@droftarts He has a prusa type machine similar to mine and mine doesn't behave like this. We both have similar acceleration and jerk settings for Z although he does keep his Z in StealthChop full time. The only ohter difference is my machines are Duet WiFis.
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Duet WifI = TMC2660
Duet 3 Mini = TMC22090.9 motors + TMC2209 are difficult to set up. Our Marlin neighbours are having similar difficulties with 0.9 motors, TMC2209 and StealthChop.
Imo it's not worth the hustle. Use 1.8 motors, set V to 0 (no hybrid mode) and happy printing.
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@carcamerarig Still doesn't work for me.
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@argo we've switched entirely to spreadcycle and the issue remains.
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@ctilley79 said in SpreadCycle / StealthChop tuning / configuring help:
I've tried helping @carcamerarig on this issue, maybe I can give my take on what's going on. We believe we have homing with stallguard figured out, but that's not the main issue.
The issue is during fast moves, the printer will stutter causing a thump sound, resulting in a layer shift. The nozzle is not hitting the print or other obstruction.
I thought originally this may be caused by the switchover from stealtchop to spreadcyce. However forcing the machine into spreadcycle after homing did not alleviate the issue during a print. @carcamerarig Can you post a link to the video showing the problem?
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@ctilley79 said in SpreadCycle / StealthChop tuning / configuring help:
@argo we've switched entirely to spreadcycle and the issue remains.
M569 P0.0
Drive 0 runs in reverse, active low enable, timing fast, mode spreadCycle, ccr 0x00053, toff 3, tblank 0, hstart/hend/hdec 5/0/0, pos 264 -
Why cant this board be easily tuned and configured to run with .9* motors while other - cheaper alternatives and lessor developed FW can?
This really shouldn't be this difficult. Perhaps 2209 drivers werent the best selection for the Duet mini boards ?
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@dc42 Could you, or task somebody to do it, create a step by step guide from start to finish for this ( configuring then printing ) an idiots guide that a monkey could follow please. I'll pay for it to be done if you can organise it.
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@carcamerarig A method that doesn't require an oscilloscope would be nice.
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Acknowledgement of a potential issue and a working fix would be nicer.
There seems to be issues around he spectrum of users with the TMC2209's and .9* stepper motors.
That being the case I dont at all see the attraction to these 2209 drivers ... All this for sensorless homing ?
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@sputnikoc3d
No. Sensorless homing is working fine while homing. He's only in StealthChop for homing currently. We switch back to SpreadCycle after homing. He's having the thumping/banging issues in SpreadCycle as well which is bizarre. SpreadCycle normally doesn't require tuning for it to operate on a variety of different motors. You might get more noise with different brands, but the stutters and resulting in layer shifts with SpreadCycle is stumping me. I don't see why the 2209 in SpreadCycle mode should vary among the different Trinamic chips regardless whether it's a 2660, 2209, 2208, or 5160. -
@droftarts - have any other insights to this issue ... any known successful configurations ?
Missing steps in SpreadCycle on very easy print geometry and conservative travel speed moves/settings.
Eliminated MANY potential aspects - but its starting to seem that these 2209's just dont like to play nice with LDO .9* motors
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@sputnikoc3d said in SpreadCycle / StealthChop tuning / configuring help:
@droftarts - have any other insights to this issue ... any known successful configurations ?
Missing steps in SpreadCycle on very easy print geometry and conservative travel speed moves/settings.
Eliminated MANY potential aspects - but its starting to seem that these 2209's just dont like to play nice with LDO .9* motors
To be fair im at the point where im "hacked off" with the lack of input or support, 6 fairly knowledgable people located around the world all in different timezones have put an insane amount of time and assistance into trying to get this issue resolved to no avail... A simple procedure to follow to setup motors would pretty much alleviate this?
