Originally published 5th June 2012 - Designed for any extruder's that can go on my Quick-Fit X carriage.https://www.youmagine.com/designs/quick-fit-x-carriage-and-extruder-lm8uuMake your Printrbot easier to switch extruder's and give yourself a new X mount.Print out the two plates and replace the X carriage on the Printrbot.Print a Quick-Fit Extruder.It's designed to be used with Extruder's that use the Quick-Fit X carriage.I also re-made the X Axis mount with 3 Linear bearings instead of just 2.It all fits and operates on the Printrbot, but limited testing so I'm going to say it's a work in progress until I have done some more printing with it.Made for Day 5 of 30 days of creativity ( #30DoC ) www.30daysofcreativity.com/See my blog for updates and other printing advice - www.richrap.blogspot.co.uk/2012/06/quick-fit-extruder-mount-and-x-axis-for.html