Is there a 'gearhead' style extruder (two gears both driving the filament rather than

Liam_Jackson · February 22, 2015, 7:51pm

Is there a ‘gearhead’ style extruder (two gears both driving the filament rather than an idle bearing) with a lever that allows quick changing of filament?

Erich_HaHaOh · February 22, 2015, 8:09pm

http://www.bondtech.se/?page_id=8

John_Davis · February 22, 2015, 8:14pm

@Printrbot has a design like this on YouMagine.

Liam_Jackson · February 22, 2015, 8:48pm

The printrbot and bondtech ones seem to require backing out and feeding in of filament using the motor, rather than a lever to allow disengagement of the gears to allow manual removal/feeding of filament.

I remember someone mentioning a design using similar gears but with a lever, but can’t find it!

John_Davis · February 22, 2015, 8:51pm

Liam_Jackson · February 22, 2015, 8:54pm

@John_Davis Ah I see, so the 0.03 version does exactly this? Great

Steve_Wood_Gyrobot · February 22, 2015, 8:56pm

@Liam_Jackson That could possibly be me and the Recreus Double Drive extruder : https://plus.google.com/108714388018021121878/posts/MPVW3HAUdBb

Liam_Jackson · February 22, 2015, 9:54pm

@Steve_Wood_Gyrobot yes that’s the one! I assume still not available?

Think I’m going to to give the printrbot one a go for now!

Steve_Wood_Gyrobot · February 22, 2015, 10:00pm

@Liam_Jackson It is still in beta test. Definitely needs to be in steel for longevity of the sharp teeth. Under tests it provided an improvement for the constraint of Filaflex, the advantages for rigid materials is still unclear until the steel version is made.