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For a university project, my partner and I need to print the robot Poppy. This is an open source robotic project, poppy-project.org.

We are printing it with a double extruder SpiderBot with PLA and HIPS as support material. Our principal issue is the weakness of the pieces we print.

It prevents us from removing the support material without damaging the piece. We don't have the chemicals to dissolve HIPS.

Have you some advice to make the pieces stronger, or a more gentle method to remove the HIPS?

Thanks for the replies

1 Answer 1

Why not try using PVA(Polyvinyl alcohol) for support material.

I use it for my support material with PLA, and it dissolves in water.

here is a link to some on Amazon.
https://smile.amazon.com/eSUN-1-75mm-filament-natural-0-5kg/dp/B00MVIQASU/ref=sr_1_3?s=industrial&ie=UTF8&qid=1508539512&sr=1-3&keywords=PVA