Direct drive mini extruder for Mini i3

I do love Kliment/Josef's compact extruder and I have made some variations myself that work pretty well.

However, I was a bit disappointed of the small useful area I was getting from my Mini i3 due to the big size of compact extruder.

This is a small direct-drive extrude for j-head hotends. Please note it is not a good choice if you want to use it at any speed above 40mm/s with 3mm filament. It can do 100m/s for 1.75mm filament.

Now I can get 120x120mm out of my Mini i3, though it has