Printing w/Flexfill
Anyone successfully print with Fillamentum Flexfill? Prints fine on my Mk2s, but on my Mk2 w/MMU, it doesn't seem to feed all the way to the multiplexer when doing a "Load Filament". Also, I tried manually extruding until it came out the hotend, then started my print, but the retraction seemed to be too much so that it "contracted" past the multiplexer and back into the bowden tube. Any ideas?
Re: Printing w/Flexfill
More info regarding printing with flexible filaments can be found here: http://shop.prusa3d.com/forum/original-prusa-i3-mk2-multimaterial-f26/printing-flexible-material-with-the-mm-is-it-posib-t4612-s10.html
It all depends on how flexible your filament is to be honest... 95A seems to be working.
Re: Printing w/Flexfill
I read the post and I'm using the 98A that came with my Mk2S. I'm hoping someone's run across this, but it seems like the usual go-to folks just haven't really gotten around to using it yet. I'll keep playing with it, but good to know that someone has at least tested and has it running. I'm going to go with too much tension in pulling off the spool into the extruder and work that angle for now.
Re: Printing w/Flexfill
I just had a try with some FilaFlex (82A shore hardness) filament i have, and could print with the "normal" MK2.
I printed in single extruder MK2MM mode.
It started out well, and then started wrapping itself around the extruder pulleys after 60% of the print.
It was a bit of a pain to get out again, but nothing seems broken.
On dissassembly of the extruder I noticed that the pulley was not perfectly aligned with the filament path.
I'll give it another try tomorrow.
Update:
Next day, same problem. Only it didn't get as far in the print. same failure, filament wrapped around the extruder gears.
I think I'll declare that a loss, and decide 82A shore hardness is too much for the current extruder design.