I think you have a special case here, where the auto-generation indeed produces "useless" supports.
But one thing: do you really have to print the model in that specific orientation? To me, it seems that rotating it, so the flat face on the opposite side of the opening lies on the print plate, would be much more efficient, as you wouldn't need any PVA at all...
Edited by P3D
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gr5 2,094
This is probably because of "support horizontal expansion" and is occasionally a waste but usually a good thing because...
PLA sticks nicely on top of PVA but not the other other way around - PVA does not stick so well on top of PLA. But it sticks great to the glass and to itself. So if you were printing say a cube with a large horizontal hole through it and you wanted support inside the tube. It's best to connect the PVA inside the tube down to the glass bed. "support horizontal expansion" takes care of that situation and many more (but not all situations).
I'd have to see the rest of your model to know if what you circled is very helpful or just a waste of PVA.
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Japakli 0
Hi gr5,
Thank you for your quick reply!
I understand why it would need to stick on the glass plate in this case, but for me it would only make sense to have it inside the object really. I have attached some more pictures of my 3D model, I hope they are helpful!
Thank you again ?
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