JD Duallie Belt Driven Dual Extruder

youmagine

I designed my extruder to optimize weight efficiency while minimizing penalty from non-bowden single extruders. I'm confident that a functional unit can be created under 500g. The first operational prototype weighs 600g, including hot ends and motors, however many direct drive single extruders fall within this weight range making the additional weight of a second direct drive negligible.Care has been taken to allow for flexible filament use through a straight path with minimal seams & joints, eliminating room for buckling.Filament idler pressure can be easily adjusted, and there's a quick-release mechanism that allows visible access to the hobbed pulley or rapid material switching.I designed around an Ord Hadron carriage but with a simple mount plate it will also accommodate a MendelMax 2 carriage using a different groove mount plate, see my other designs in my account.This design is ongoing, yet I've achieved about 40 hours of successful operation. The provided photos showcase my first prototype, while the drawings represent improvements based on practical use.Videos demonstrating the design's functionality can be found here:https://www.flickr.com/photos/34962649@N00/14809349302/in/photostream/https://www.flickr.com/photos/34962649@N00/14576061370/in/photostream/The Ord Hadron setup requires no carriage modification and only minor adjustment to the X limit endstop, still allowing 196mm of full dual extrusion X working width. Upcoming mount plates for other machines are planned.