Tips & tricks for mounting a flying extruder
-
As of yesterday I have converted to a flying extruder setup on my Delta. It's working very well, although the mean error after delta calibration has increased from 0.025 tot 0.065. I will lower travel speed and increase the recovery time to see if that gets it back to lower values.
I used 4mm diameter elastic band and the extruder is hangly fairly low, with very little tension on the elastic band. I only applied some tension to align the extruder output to the hotend. I can tighten the bands, but then the bowden will be a bit longer. I have seen that some use silicone tubing instead of elastic.
Are there any tips & tricks on mouting a flying extruder setup?
-
I have NOT done the actual extruder... hope to do so soon... I HAVE "flown" my bowden and wiring several ways since building a large-ish delta.
The way that worked best is to use "Stretch Magic" from the carriages. SM is intended for beading and similar:
https://www.amazon.com/gp/product/B0058E7WOA/
Amazing stuff. VERY resistant to breaking from overstretch. VERY light.
-
Thanks. I'll have a look at it. Yesterday I lowered probing travel speed and increased recovery time, and delta calibration results have improved to 0.03/0.04.
-
@bartolomeus I know I have seen a “keyback” used to put tension upwards on the extruder. In fact I think it was Haydn (the guy who sells awesome mag ball arms) that posted about that.
-
This post is deleted! -
@bpislife said in Tips & tricks for mounting a flying extruder:
@bartolomeus I know I have seen a “keyback” used to put tension upwards on the extruder. In fact I think it was Haydn (the guy who sells awesome mag ball arms) that posted about that.
Fantastic idea.
A common problem with elastic is they give more pull when stretched. The linear pull of a "belt retractor" or "keyback" might work much better.
Must try this, and soon!
-
I use one to support the Bowden tube and cables, to prevent their weight applying a sideways force to the effector.
