Weird Ripples on My Maestro rrf3 Conversion
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It's unlikely but not impossible that the stepper driver that is driving the extruder motor is faulty. You can check this by switching to a different motor output. If the E1 output is free, then with power off move the extruder motor connector to that one. In config.g add M586 X0 Y1 Z2 E4 somewhere near the beginning (before the M906 and M350 commands). That will redirect extruder 0 to the E1 motor output.
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Don't want to bear a dead horse but. I bought a ldo .9 stepper and tested it on a known good printer. No problem. I took the bondtech off that machine as a known good extruder. I put polycarbonate wheels on the ender 3 and adjusted everything including recalibrating extrusion and using a different filament. Then I started printing vase mode cubes that are 60mm tall and 50mm on a side looking for patterns. I made a script to increase speed from 20mm/s to 70mm/s every 10 vertical mm to see how speed affected it.
It is all basically the same after all this. I also tried changing steppers from stealthchop to spreadcycle to random and constant. I also tried stealthchop but upped the cutoff speed at which it went to spreadcycle, thus forcing it to stay in stealthchop. None of this made any significant difference. This machine did not do this with the stock board but upgraded extruder in it. Im at a complete loss at this point as to what to try.
Any thought much appreciated! -
Sorry forgot the photos.
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@4lathe said in Weird Ripples on My Maestro rrf3 Conversion:
Any thought much appreciated!
Did you try a different driver for the extruder as DC42 described above?
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Yes I trued the other driver. also changed my config settings for speed etc to the ones you provided to someone in a dec. thread on sort of the same topic. He ended with abs printing ok and the thread just stopped.
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Out of curiosity are you seeing anything unusual in an M122 report?
You're on RRF3, did this also occur on 2.05?
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Struggling with VFA on a Duet wifi 1.04, titan aero and .9 steppers on X/Y myself running rrf 3
also trying to figure out my horizontal variation - may be temp related so i'm looking at my heatbed (no fan was on for this print) but you can clearly see all my vfa - it just looks weird because of the shape
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@Phaedrux I don't know as when I installed the Maestro, I went to rrf3.
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@4lathe I'd be curious to see if there is any difference if you went down to 2.03.
It shouldn't be too difficult. Make a backup of your config. Grab a config set from the configurator, and upload the zip file. If there's no difference, easy enough to swap back.
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@Phaedrux Ill try it.
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Just throwing this out there... Is it possible that the pulse pattern matches up to the heat cycle on the hotend? Is this a E3d V6 hotend?
Maybe the brief micro changes in the hotend temp while extruding causes this result you are seeing?
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Interesting thought. The heat parameters were new for the maestro from those when I was running marlin or klipper on this machine. Way to test??
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@4lathe Have you done a PID tuning?
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No I just copied parameters from my e3dv6 on my delta. Ill do that first but is there any way to test the pulsing issue?
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@4lathe Just by watching the temp reported. Is it stable? A small variation is to be expected. With a PT100 sensor and a sillicone block sock my hotend temp varies about +-0.5c. How much does yours vary?
Still, running a PID tune is quick and will eliminate it as a variable altogether.
Will be interesting to see the difference in results.
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PID tuned. Temp during printing did not vary by more than .1deg. They look the same.
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Looks worse on y than x?
re tension the bed wheel carriage?
I know you said the stock board didn't produce this, but perhaps something has changed mechanically since then? Do you have to original board to test with to compare? Tedious, but would help narrow things down with certainty.
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@Phaedrux yes its always worse on y than x. The ripples are about 2mm on y and that distance doesn't really vary with speed from 20-70mm/s. Unfortunately I tossed the old board. I can try messing with y tension.
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Well you could swap drivers for x and y and if it follows the driver.
But I'm starting to lean towards mechanical
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Increased belt tension on x and y. Bottom section is 20mm/s and upper layers at 100mm/s. I know part of it is the sheen, but it almost goes away entirely at 100.
