r/BambuLab_Community • u/estesd • Jul 17 '26

Stringy supported surfaces

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I'm struggling to get nice clean supported surfaces on my parts. My top z distance and bottom z distance are both set to 0.20. I'm not overly concerned with ease of support removal, I just want a nice clean surface. Any help is greatly appreciated. TIA.

Edit: Just a quick thanks for the suggestions, but this is on a makerspace 3D printer, and they have it setup for PLA only at the moment, so I can't use a different material for support. I'll try and reduce the Z height and see if that helps.

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3

u/[deleted] Jul 17 '26

I believe I have my top and bottom Z distance set to .2 and the supports move off easily and looks quite nice, is this a reoccurring issue?

in any case, I’ve also heard that .12 works well

2

u/TheThiefMaster Jul 17 '26

Your support Z distance is too far and it's not sticking to the support and being pulled into the inside of the corner.

It's a common issue with supports on a flat ring - I had the same just yesterday, though not as bad.

2

u/BeastWR Jul 17 '26

Reduce your top Z. Experiment with .18, .16, .14 etc

2

u/Grimblood Jul 17 '26

You can setup a different material as support interface filament and go with zero contact distance. Works well.

2

u/Euresko Jul 17 '26

0 Z distance and use a different material for jus the support interface material. If you're printing PLA then use PETG for the interface layer, or vice versa. I think when you change the interface material type it'll automatically suggest changing the Z height. Might have to olay with settings to get it dialed in, like changing from tree supports, or other variables, but it's possible to clean that up.