Interesting, I didn't come across that one in a Google search. It doesn't appear to have a motor drive in the extruder, so it's a Bowden drive. Plus it's using a servo and additional electronics, etc.jimc wrote:hot damn!! i found it. in the video they have it on an m2
I have an updated picture, attached. From the comments I made in the last post, I realized that I didn't have to move the extruders so far, nor do they have to be in-line with each other, and by reducing the total travel to about 10mm, the gear rack probably doesn't even need to be curved. My new drawing looks very similar to the existing dual extruder setup, except with the motors and extruders not directly attached to the rail, but connected as before through a hinge at the top. There are a lot of little differences, though.
With the extruders only at a 5 degree angle, it could probably be prototyped with the existing hot-end mounting bracket. That would put the nozzles at a slight angle to the plate when printing, but should still work reasonably well.