Print Problems
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@droftarts @fcwilt @Phaedrux Hello guys. I started a new thread due to a different problem. I'm noticing a lot of vibrations, small blobs in my prints. In addition this is something that had occurred before any of the recent changes to the printer. Regardless of speed changes or jerk control this occurs.
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Hi,
I've never printed those objects so I don't know what its appearance may mean.
Have you tried something simply like a calibration cube? Or a stringing test?
Frederick
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@fcwilt Same results with any print.
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this looks like a mechanical problem on the printer.
when the motors are powered. put your finger on the nozzle and see if you are able to wiggle it. there should be no movement.
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@Veti It requires a decent amount of force to move.
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@Gost101 what way was the benchy facing on the bed? Are there ripples on the other faces of the benchy, and if so, which? I’d guess backlash somewhere; loose belts, wrong belt shape for pulley, loose pulleys on motors, loose carriage... basically, something loose.
Ian
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@droftarts The benchy was in the center of the bed with the front of the boat facing x + (eg 400). All belts and pullys are tight.
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@fcwilt @Veti @droftarts The belts were pretty tight but apparently not tight enough. I tightened the y axis a little more and most of the y axis problems went away. However I cannot tighten the x axis it's basically impossible. I ordered a tension kit for it though. In addition here is the latest print with these changes.
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Looks like to need to add a M593 to your config.
https://duet3d.dozuki.com/Wiki/Gcode#Section_M593_Configure_Dynamic_Acceleration_Adjustment
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i would also try reducing the temperature
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We'd need to see your print settings and config.g to give any more suggestions.
