I’ve printed probably 5 kilos worth of prints with a lot of success, but exclusively PLA. I’d like to branch out to a new material. Should I start with ABS or TPU?
I’ve printed probably 5 kilos worth of prints with a lot of success, but exclusively PLA. I’d like to branch out to a new material. Should I start with ABS or TPU?
ABS needs an enclosure for anything above around 10 layers. Even a room closed with it warm and no one inside is not enough to save an ABS print. Just the air from the moving tool head and the bed are enough to disturb a print and cause layer separation. An IKEA Lack table and a garbage bag over it is enough of an enclosure to count and get most prints alright. It stinks though.
TPU will have holes and look terrible unless you print out of a filament drier. You can dry the stuff a lot and print for around 45 minutes with it in open air before it will absorb enough moisture to start expanding steam in the melt zone and blowing holes in your print layers.
That enclosure might work for smaller ASA prints, but I needed a lot more insulation than a garbage bag to pull off larger prints.
Maybe I got lucky with TPU, but I didn’t run into any significant issues with humidity when I printed treads for wagon wheels over the course of two or three days.