So I talked to a chemical engineer I work with and he mentioned PETG might be miscible in limonene. I should also have clarified the PETG I’m using is MakerGeeks not Edge. I may simply have to use what I have and find a low temperature PETG. It seems nobody really knows what might work but HIPS and ABS are the best options to test and I’ll let you guys know as soon as I get my multi material kit (has not shipped yet). I was hoping not to use a lot of chemicals for dissolving support but if it works, it works. Thanks for all the help guys and sorry I got a little annoyed @NathanielStenzel
<-- a chemical engineer
Limonene is shipped in PET bottles. It attacks pretty much every plastic out there, but PET is attacked so slowly that the bottle is fine for years. PETG could have somewhat lower chemical resistance than vanilla PET, but I am positive it will perform better in limonene than ABS does.
Well, they had a presentation on open sourced filament recipes at MRRF. Maybe there will be some advancement down the road if that gets popular.