I have a dual-extruder printer with a separate heating element for each head, thus able to combine materials in a single print job even if they don't share a single temperature range.
Now the question: When (outside of using expensive dedicated support material or doing multicolor prints for aesthetic reasons) is this actually useful?
Of common printable filaments (PLA, PETG, TPU, ABS, nylon):
- Do some of these materials work well (which is to say, substantially better than just doing a single-material print with same-material supports) as breakaway supports for others?
- Can some of these materials be dissolved in household solvents that don't harm others?
- Do some of these materials adhere to each other strongly enough (and have sufficiently similar profiles in how they shrink on cooling) to reliably generate finished pieces comprising of both? (Especially relevant for anything+TPU, where one might want to generate a design with some soft or rubbery components).