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Thread: Seams reduction on radii \ domes
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08-07-2023, 05:44 PM #1
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- Aug 2023
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Seams reduction on radii \ domes
Hi All,
any advice on reduction of predominant seam on outside of a dome \ half pokeball would be welcome.
I am getting an ugly seam at the back and as the circle path decreases as the dome gets higher, the gap seems to widen in cura preview?.
It matches what i am seeing printed.
I am running cura 5.4 & using an ender 3 V2 to print one half of a pokeball for my grandchild. I am placing the dome \ pokeball largest radii down.
Previewing the slice, the top of the dome seems to get wider on the gap (becomes green\yellow in pic) between lines. I am suspecting an algorithm error in the slice - as the circle decreases, the lines should remain same distance - they dont.
Screenshot 2023-08-07 234045.jpg
Is there a way to cure this or is it a well know issue.
I cant understand why it produces a seam unless the movement within the program to next layer has a blip factored in.
Can you slice a program to not have a white seam as in image?.
I program CNC routers in industry for a living so have some background on graphi-code \ machine paths.
thanks
Rich
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08-08-2023, 01:23 AM #2
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- May 2020
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- 685
Set the slicer to variable layer height, this should help but not eliminate the gap problem by making the layer height thinner where a curved surfaces occurs.
The seam appears because of the layer change, there will be a setting to change this to variable positions rather than at the back. But then you might get zits instead.
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08-08-2023, 07:06 AM #3
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- May 2018
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3D printing is not injection molding, if you want a smooth surface then there will always be post processing.. sanding, filling, painting.. Unlike molding you are adding a single string at a time, on layer at a time.. Curves and ramps and bevel's don't turn out the same as a mold, you have to model you part to be 3d printed for best results..
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08-26-2023, 10:13 AM #4
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- Aug 2023
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Thanks for the replies.
variable height has helped the reduction spacing.
I found regarding the seam - that activating retract at layer change has massively reduced it.
Ender 3v2 poor printing quality
10-28-2024, 09:08 AM in Tips, Tricks and Tech Help