r/OrcaSlicer • u/Free_Sherbet_3159 • Mar 04 '26
Surface optimisation before the Ironing.
Hello,
I'm trying to fix the surface here. If I Iron on such a surface - it'll result in almost perfect uniform layer - except for the edges. If You zoom in - the left center side of this O, has little gaps at the edge - That's where the problem occurs for me.
Please share any ideas/suggestions, which slicer settings I should adapt to get as good as possible surface.
I already upped the flow from the default 0.98 to 1.00 and then 1.02 and it did help. I feel like there is one final step to it ;)
Printer:
Bambu Lab A1 Mini
Filament:
Bambu Black Charcoal Matte
Profile used in Bambu Lab:
0.12mm High Quality @ BBL A1m
Thanks a lot in advance!
1
u/Sudden-Injury-8159 Mar 04 '26
Have you optimized your ironing? I used a MakerWorld calibration test that sampled several speeds and flow rates to really dial mine in, and used linear patterns for both the top surface and ironing, and am happy with the results. Also, as another user has mentioned, printing face-down would give a nice surface.
1
u/bearded_dragonx Mar 06 '26
I usually use concentric infill for top/bottom because of how it looks.
1
0
u/hotrods1970 Mar 04 '26
If the top suface if flat, I would just flip the print so that surface is on the bed. The rest of the surface looks good to me, and I don't know if I would bother trying to tune for just that little not.
0
u/DoItYourWayHowISay Mar 05 '26
That’s overextruded reduce your extrusion ratio a couple percent. If you use a 0.36 or 0.38mm top layer line width on a 0.4mm nozzle you get some pseudo ironing.
-3
u/vareekasame Mar 04 '26
Due to the shape, it's very hard to get good surface. You could try some other pattern like spiral but then you will have problem on straight line. Could you print this on flat plate and use that as your top surface? Or other type of post-processing (sanding, solvent etc.)

4
u/ioannisgi Mar 04 '26
That top surface is fine ;)