A nice free calibration tool....

[Vassili Finellis]

http://retractioncalibration.com/?fb...x7IlqnswX3_CZ4

[Alan]

What results have you obtained using this tool (I wish the site let you add start and end gcode, like TeachingTech's site)? I tried it and the results were ambiguous. It might be my printers tho.

Thanks!

[Ender5r]

An interesting project. My 1st thought was "that's a lot of retraction!".