Support of the angled surface problem

[slavka012]

I'm relatively new to S3d and I'm having trouble with supports generated for the angled surface (61 deg from vertical)

First of all, as you can see, S3D generates small segments of support completely detached from anything, both from the model and from support. As expected, it produced a mess. Second, in the end it looked like the model was printed without support at all. In other words the model was pretty much disconnected from the support, with over 1mm of vertical separation. The only connection was through stray strings here and there. Any tips would be appreciated.

[rrdavis]

Use a smaller support pillar resolution. That will help prevent the larger overhangs. You may also want to lower your support inflation distance, since that can make some of these problems worse.

Finally, I would personally increase the support infill percentage as well. Only 25% isn't much if you are trying to print 70% dense support right above it.

[slavka012]

After I posted it I found a combination of parameters that produced a reasonable support structure. Still, the software should not generate garbage, even if it can't produce something working with the parameters given.

I noticed that horizontal offset from the part can't be used unless you have only horizontal surfaces to support. If you have angled surfaces to support, s3d will use horizontal offset to stay away from them, which does not make any sense, but it is what it is. This results in very wide vertical gap between support and the part.

Also, inflation distance is also not handled very well by the s/w, and should be left at zero