For example I'm 3D printing a self-designed "anti-ant" cat food thing, where the food "floats" above water (so the ants simply cannot reach the food). The problem is it cannot be used for more than a month or so before bacteria develops. Something like that.
Is a splint for, say, a broken leg in which the person is going to sweat in PLA or PETG really that good of an idea?
https://printforhelp.org/parts
The splints are printed flat with PLA which allows thermoforming - putting them in hot water allows doctors to mold based on each patient's arm