I would like to know what kind of plastics can be printed with a mendel reprap these days?

I have printed: HDPE, PCL, ABS, PLA, PMMA.

I have seen others print Nylon, PP, PC, PVA.

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[www.hydraraptor.blogspot.com]

So nylon is possible ?, i was wondered about that as it is a nice material to work with.

This nylon can: [taulman3d.com]

Other nylons outgas stuff that may kill you.

Most of those have a reprap wiki page, some of them pretty low on info, though. Also, is there a 'extrudables' page?