by Seth G Wed Dec 28, 2022 11:58 pm
I also thought it would make a good mold plug initially. Like for sand casting or something. But after printing it, the weak point appears to be very strong in the orientation it is printed.
A spin caster would be ideal for making these and emblems and all sorts of zinc-aluminum type parts. If you used the right filament, the plastic should be able to withstand mold vulcanizing temps for rubber molds used in commercial spin casting. They also have a pva filament that dissolves with alcohol/water that could be used for some type of sand casting I think.
I've avoided abs since I began 3d printing mainly because of the fumes and it's somewhat difficult to print well from what I've read. I upgraded my printer with an e3d V6 type hotend a couple years ago and started using nylon when I need ultimate durability. I only use it when I feel I need to though b/c the filament has to be dried for several hours before use every time it's been out for more than a few days. Same with printing with tpu, I love the things you can do with cheetah-flex but it is a bit of a hassle to have to dry it in the toaster oven for an hour or two before you use it. Once dried they both print awesome though.
I mainly use petg now b/c it prints well, is fairly resistant to heat(much better than pla), its hydrophobic, it's pretty strong and it's cheap. It's not brittle like pla but more brittle than nylon.
I hope that file works well for you. If you can print it well in abs it will probably work. Use a high wall count in the slicer, probably like 10 w/ a .4 nozzle, 100% infill setting and lay it flat on it's side. That layer/strand orientation gives it a lot of shear strength.
Btw, I also have a file for the window roller. I printed one in nylon 2 summers ago and it's still in there doing it's thing. Those are still available in the market though b/c they used the same one in the Mustangs.