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PLA, but I’ve only used it for sanding small models so heat wasn’t an issue. PETG should be more heat resistant.

Yeah, but those sanding pads cost more than generic sandpaper.

Does mechanical error actually matter when using sandpaper? It seems like most of the error comes from holding the tool with your hands.

One day filament will come with DRM so you can’t print it backwards. Only a pirate would do that!

I was monitoring this print remotely (Bambu P1S), so I’m not sure what actually happened. It’s possible that it failed for other reasons, and then the tool head got tangled in spaghetti and disassembled itself.

I just tested this hook by hanging a 5 gallon bucket and gradually adding water. PLA 1 wall = 1710 g, 2 wall = 1178 g. The thing is, a 1.5 mm hook fails by straightening rather than snapping, so rigidity is more important than strength.

Edit: I also tried PETG: 1 wall = 1441 g, 2wall <998 g (failed to hold the empty bucket)

So the 1 wall hooks can support >40% more weight before straightening enough that the bucket slips off. That’s more significant that I expected.

Edit2: Part of that 40% difference is due to friction; the 1-wall hook has a rough surface that makes the bucket less likely to slip off. But even with bluetack on the hooks, 1-wall has less deflection than 2-wall for the same weight.

Another confounding variable is the weight of the hook itself: 2-wall = (0.83g slicer, 0.78g actual); 1-wall = (0.95g slicer, 0.88g actual). I don’t know if that extra weight is coming from density or volume, but either way the stronger hook is more expensive.

Sigh, reality is so complicated.

So you’re saying it’s technically a pirate ship?

Hoping has the same infill strength as Gyroid

Lightning does not compete with Gyroid on strength. Lightning is basically designed to be as weak as possible while still supporting the layers above it.

Typical android efficiency. He painted Tasha identically because the two paintings won’t be in the same room.

Yeah, 5e²ⁱth world problems.

But seriously, I don’t think I have the right experience to give specific advice.

Just build the printer, and try not to break anything. Work slowly, and if you mess up, try to understand what went wrong, take it apart and do it again. Watch some YouTube videos if you want to see other people doing it.

When it comes time to print, start with small objects and work through any problems, before wasting filament on big objects.

Sir, this is 3DPrinting, not 4DPrinting. The technology to print hypercubes won’t be available until the Great Contact of 2297.