@Alex_Wiebe I don’t know how to check. Because I can’t get the belts tighter that what they already are
@Stephanie_A @Max_Moors Another option to make layer print time more consistent (which is an idea I would not have guessed for such a large model) is to either slow the print speed down or increase the minimum layer print time (not sure on the exact setting, but in KISSlicer I can specify a minimum layer print time, and if the layer is smaller, the slicer slows down the speed for that layer so it has a chance to properly cool).
@Max_Moors I add body belt to the bed and lacker spray for make sure the fixation of model 3d. (I have a Prusa i3).
I’m don’t really see the problem with this print. Are you concerned about the layering ? The small spikes in the side port being a bit fragile ?
OK got it. Didn’t see the other pics at first. That bumpy layer, always at same height. You say it matches the height of a hole, maybe you could try to use support everywhere, to avoid retracting too much on that area, so these layers would be printed more like the others (constant extrusion during the whole perimeter)
@Eric_Yriarte initially I had support everywhere but then when I removed it in the slicer it stayed the same (maybe even a little better)
It helped a bit now. The reduced speed and temperature where the right decisions. The customer is picking it up tomorrow
@Steve_L I’m using simplify3D. But it only happens with this print
i guess you’r fed up with this print, but maybe you could try to get to the bottom of this, just for the sake of understanding what went wrong (and telling us for future reference ;] )
so, my new two cents is : would you try to fiddle with retractation settings. add a couple mils and see what you get.
the hypothesis being : as the problem occurs on interrupted perimeters (where retractation occurs), it may be retractation related.
My 2 cents would be to try:
- changing the infill %
- changing the walls thickness
- changing slicer
that looks like wobble or slack somewhere, a quarter turn on the belts may stop the banding
maybe your hotend is a bit loose…
I think there is 2 options here.
Turn it on its side and print as a test. If it’s it’s in the same height you have problem with z axis travel.
Since its only this print. I think it’s tool path issues. Try cura or another slicing software. This is more likely if it’s only this print. It’s not speed if it around the whole part.