Sorry to not be clear…
I’m building a vice grip out of PLA. But the objects I’m trying to hold onto with the vice will be of irregular shape (not squared off against the jaws). So, in order to retain a tight grip on the part, I need the jaws to have a sponge-like surface… something that will conform to the object, then spring back after the object is removed, ready for another to be placed.
Imagine trying to hold a sphere in a vice grip so you could drill a hole in it. A vice grip with typical metal jaws (PLA in my case) would loose grip as the sphere is drilled into (the sphere is not strong enough to withstand significant pressure). So I need the jaws to have a spongy pad to conform to the spherical object to keep it held securely.
The only filaments I’m aware of that might fit the bill are ninja flex and the lay-fomm. I’ve used neither. As you point out, the ninja flex will require a new extruder, and I’d like to know if it would suit the application before I make that investment.
I’m thinking the fomm filament (linked above) would suit the application well, but I have not been able to find any information on printing via the mini with that type of filament, and looking for input if anyone has experience or knowledge about that filament usage on a mini.
HTH, and thanks for your reply!