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For many (most?) prints you want that on. It has to do with the fact that if your part is mostly vertical with holes in the sides you want the support that sticks into those holes to be able to reach the bed. Because PVA doesn't stick on top of PLA all the great and having a connection down to the glass helps a lot.
But humans are smarter than cura so you can change this value.
We don't often release an alpha version of Ultimaker Cura... So what's different this time? This Alpha contains such a huge slicing engine overhaul that we really need your help!
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gr5 1,506
"support horizontal expansion". Set that to zero.
For many (most?) prints you want that on. It has to do with the fact that if your part is mostly vertical with holes in the sides you want the support that sticks into those holes to be able to reach the bed. Because PVA doesn't stick on top of PLA all the great and having a connection down to the glass helps a lot.
But humans are smarter than cura so you can change this value.
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PaulCura 1
Wow, thanks that's great. I've been looking for that setting for years!
Paul.
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