Comment on Cost-of-living crisis
TigerAce@lemmy.dbzer0.com 7 hours agoABS plastic too? So I can print my own dildo? Sweet! Printing with ABS produces toxic fumes though, I wouldn’t want to put that inside of me. Maybe the ABS would technically be safe but you don’t know if they added other chemicals which aren’t safe. I wouldn’t go for plastic in general, as it produces micro plastics. Just stick with the other materials you mentioned, but also with those there can be bad chemicals used. So only trust the products of proper stores and don’t order toys on temu or aliexpress, or any other Chinese website.
3D printed items are unsuitable for food purposes, doesn’t matter with which end you’ll eat them. The layer lines aren’t perfectly sealed so they are very porous, allowing all kinds of nasties to grow in them.
With ABS you might be able to fix it with an acetone bath to re-melt the top layer, but I haven’t checked.
So you can fix this by using a 1:4 slurry of abs and acetone. You’ll want to do a minimum of 3 dips and allow it to cure in a heated print chamber for at lest 16 hours but preferably 24. Also important, Reinforce the layers by either printing parallel to the angle of use or by attaching the print to a sturdier material, you wouldn’t want it to break across layer lines in use.
There is food-safe filament for 3D printers but it isn’t ABS. I just wouldn’t do it at all, indeed like you said for the layer lines creating perfect spots for bacteria. But also because most of the filaments or plastic used for filaments are made in China and they tend to use harmful chemicals to cheap out on production or their machines are covered in bad chemicals for lubrication for example, ending up in/on your filament.
stevedice@sh.itjust.works 21 minutes ago
Well, self-made is a whole different beast. And yes, always buy from reputable brands.