Omerod 2 quality issue - uneven walls November 28, 2015 09:22AM |
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Re: Omerod 2 quality issue - uneven walls November 28, 2015 04:28PM |
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Re: Omerod 2 quality issue - uneven walls November 28, 2015 04:36PM |
Registered: 8 years ago Posts: 10 |
Re: Omerod 2 quality issue - uneven walls November 28, 2015 07:34PM |
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Re: Omerod 2 quality issue - uneven walls November 30, 2015 12:47AM |
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Re: Omerod 2 quality issue - uneven walls November 30, 2015 02:20AM |
Registered: 10 years ago Posts: 1,230 |
Quote
jreut
So, problem solved, but I'm still wondering why the start/stop points overextrude so much as to be so noticable. I don't remember seeing this on my old Solidoodle.
Re: Omerod 2 quality issue - uneven walls November 30, 2015 07:01AM |
Registered: 10 years ago Posts: 859 |
Re: Omerod 2 quality issue - uneven walls November 30, 2015 07:43AM |
Registered: 10 years ago Posts: 2,472 |
It is a known issue with Bowden tube extruders. The Bowden tube causes a lag between the extruder motor starting or stopping and the extruded plastic starting or stopping. The Simplify3D slicing program has a setting called "coast at end" which compensates by stopping the extruder slightly before reaching the end of a printed line, and that helps a bit. If you need good quality prints, set the outer perimeter speed very slow, which will greatly reduce the amount of over-extrusion at the end of lines and at corners (at the expense of increased print time). I think Slic3r has a setting "hide seams" where it tries to find a corner to start & end the perimeter so that the blobs are not noticeable. If the perimeters all start in the same place, the blobs (seam) will form a straight line which is usually much easier to file off than the "random" setting.Quote
jreut
I then changed the Slic3r setting from random starting points to aligned layer starting point, and the bumps disappeared.
So, problem solved, but I'm still wondering why the start/stop points overextrude so much as to be so noticable. I don't remember seeing this on my old Solidoodle.
Re: Omerod 2 quality issue - uneven walls December 04, 2015 09:26AM |
Registered: 8 years ago Posts: 10 |
Re: Omerod 2 quality issue - uneven walls December 04, 2015 04:40PM |
Registered: 8 years ago Posts: 10 |