Another experiment in a lightweight direct drive extruder based on the Flex3Drive. I tried mounting the Flex3Drive G5 first, but I had some trouble with the filament stripping. It might be due to the fact that I ordered the SLA (got SLA and SLS confused) parts which seems to flex (pun[?] not intended) quite a bit when driven. Definitely choose SLS (or FDM) if ordering this extruder. So I threw together a custom extruder using the parts from the Flex3Drive and a BMG extruder. Luckily the module of the drive gears are the same and the BMG gear is quite thin, so it worked without any modifications. I have it on a 0.8 mm nozzle at the moment, so it's a little bit hard to compare to the other extruders, but comparing to the bowden setup there is a slight improvement in extrusion control. Some long prints with a tricky PLA that tended to clog on the bowden setup have both finished which is quite promising as this was my main gripe with the bowden extruder. STLs: https://www.thingiverse.com/thing:4074957 Onshape: https://cad.onshape.com/documents/b...86685355f8a0b3cd05/e/63b153833740f1fe4f65d233
A flexible drive BMG dual gear extruder... Very nice! I am very interested in your results with more conventional nozzle sizes - if you get around to testing that