Today I tried Ninjaflex and another experimental elastomeric filament that I'm not allowed to discuss publicly at this time on my gMax. Both failed due to the large gap between the feed gear and the filament entry tube. The large I.D. of the entry tube may also be a problem even if the gap is closed.
The extruder can only push. With rigid filament pushing is not difficult, but with these soft filaments it's like trying to push a wet noodle, i.e. very difficult. Ninjaflex is extremely soft and tricky to print with on any printer (although I've heard it works well on MakerBots). This new stuff (the white one) is considerably stiffer than Ninjaflex and it feeds very well on my Afinia (Ninjaflex doesn't, without modifying the printer) but the gap below the gMax's feeder is just too much - the filament buckles as soon as it hits the nozzle.
The extruder can only push. With rigid filament pushing is not difficult, but with these soft filaments it's like trying to push a wet noodle, i.e. very difficult. Ninjaflex is extremely soft and tricky to print with on any printer (although I've heard it works well on MakerBots). This new stuff (the white one) is considerably stiffer than Ninjaflex and it feeds very well on my Afinia (Ninjaflex doesn't, without modifying the printer) but the gap below the gMax's feeder is just too much - the filament buckles as soon as it hits the nozzle.
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