Hello all, I’ve been using a P1S for a couple of years with Bambu Studio and I’m pretty happy. Today however I’ve found myself in a bit of a pickle.
I designed a very simple button-like thingie for a friend, with a hole from the bottom. When slicing it, however, the hole breaks one of the side walls, even though the original design does have a wall there. This is the object itself:
This is what I get with almost default parameters using the 0.08mm HQ profile for a 0.4mm nozzle:
Enabling “Detect thin walls” doesn’t help much:
The only thing that helped was switching to the Arachne wall generator…:
…and changing the Wall transition length from 100% to 800%:
From the top, it looks like this:
Note that the item is really small — the base is 9.5mm x 9.5mm, the ‘cap’ is 7.5mm x 7.5mm and the hole is 4mm in diameter — so I tried going back to the Classic wall generator and selecting a 0.2mm nozzle, but the problem remains. The hole through the wall is narrower, but it’s still there.
I understand that this is a bit of an extreme issue, and there are limits to what the engine can detect. I made this post in case it may help someone else, and to ask whether it’s something I should officially report to the dev team. I mean, it is a bug in that it shows unintended behavior, but it’s also quite a specific edge case (quite literally!).