Hey DC, Quick question. I'm considering making something of a flying extruder and I'd like to know if my duet wifi could play nice with my idea and how to do it.
My tall delta is so big that I'm having retraction issues with my top mounted extruder and crazy long Bowden. I can't side mount it as I'm enclosing the printer. I might try a standard flying extruder but I see some drawbacks there too. Ideally I'd like to suspend my extruder from the top of the machine via a cable attached to a spare stepper motor that basically reels up the extruder as z height raises. I have an extra stepper driver on the duet, but I'd need a way of telling the machine to set that motor to 0 at start and raise up with each layer to match the Z height. Then I'd just need a Bowden long enough to reach all Xy points from 0 . Any ideas how to make this idea work? I'd basically be creating a new axis entirely! I'm pretty sure I could make my S3D play nice with feeding appropriate G code using the replace script by basically replacing G1 Zn with "G1 Zn + G1 NEWAXISn", but the duet presumably needs to play a role too as steps/mm etc are all firmware side.
Edited 1 time(s). Last edit at 04/10/2017 03:29PM by clearlynotstefan.
