Flying Extruder Suspender

Using a flying extruder like this one can shorten your retracts from 5-7mm down to about 2mm, because it will shorten your Bowden tube's length from ~450mm (for a 750mm tall printer) down to ~150mm. If you have a taller printer, this is an even bigger win.

This can work with a variety of extruders, but I'm using it with Shane's: https://www.thingiverse.com/thing:245677
I've used the Shane's extruder on about 15 printers, and it has been very reliable. I like that it is easy to load, compa