He might want to rename it, for a start. E3D probably isn’t too happy about that.
Or the other way around. Look at the date of the video posted by Daniel, now look at this e3d vid: https://www.youtube.com/watch?v=EgE7_cTqKoU
I also couldn’t help but see some small similarities with the bondtech extruder.
I saw this a quite a while ago. Seems nice, but I prefer Martin’s implementation of 1 motor, dual drive.
I’ll consider a lawsuit from either side a success, as it means someone’s making enough money to hire a lawyer! 