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Random, but not random holes in layers

thetazzbot

Random, but not random holes in layers
May 21, 2015 12:21AM

Registered: 9 years ago
Posts: 396

Here are three pieces printed separately that exhibit the same odd behavior.

holes in the layers at the same spot...identically...

Thoughts?

holes_in_layers-576x1024.jpg

Repetier host, .2mm layer height, Cura slicing.

Edited 1 time(s). Last edit at 05/21/2015 12:22AM by thetazzbot.

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ggherbaz

Re: Random, but not random holes in layers
May 21, 2015 10:16AM

Registered: 10 years ago
Posts: 1,401

Either reduce the retraction value in the slicer or increase extruder acceleration value and lower jerk in firmware.

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dc42

Re: Random, but not random holes in layers
May 21, 2015 10:21AM

Registered: 10 years ago
Posts: 14,672

If you mean the gaps between layers, then most likely either you are under-extruding, or you are printing ABS and there is a draught around the nozzle.

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].