Weird support generated  

RE: Weird support generated

Hm pretty sure I did attach the file.. where is it gone? ... Trying again as zip

RE: Weird support generated

My experience is that it will probably hold as long as the first layer under it is good and solid.

You can adjust the support parameters in PrusaSlicer to increase the width and spacing of the supports if needed.  Here are the parameters that have been posted here off and on which work well for me and apparently for others:

0.25mm z distance.
75% xy distance.
3mm support spacing.
4 interface layers.
0.2mm interface layer spacing.

RE: Weird support generated

@jsw

These settings work great. My first few times using PrusaSlicer I was shocked by the amount of supports it produces compared to, say, Cura. I still feel it is excessive but with these settings, the supports can be removed like butter.

RE: Weird support generated

Thanks.

Those are not mine, but I honestly don't remember who posted those first, as it was some time ago (if you are reading this, please refresh my memory and accept my apology).  The big one is the Z distance, which defaults to .1 in PrusaSlicer, intended for soluble supports.

I have set those same parameters into Cura, and I want to give that a good try-out, as somebody posted here a while back that when supports are used under bridged areas, Cura tends to produce less-ugly undersides on the main piece.  I'm waiting for an opportunity to try that out.

I have used those numbers with Cura in a noncritical support situation and found that those supports break away as easily as those done with PrusaSlicer.

RE: Weird support generated

Just be aware that increasing the Z distance to 0.25mm makes support easier to remove, but also results in a somewhat rougher supported surface. 0.25mm works very well for things like miniatures. If you're supporting large, flat surface, you might want to experiment with varying the Z distance. Also experiment with variable layer heights as that can affect the thickness of supports.