Bear Extruder and X axis 0.6.0-alpha MK2.5 MK3
This is a better extruder and X axis for Prusa i3 printer MK2(s), MK2.5 and MK3. It is a following of the Bear Upgrade project but is still compatible with original Prusa's 3D printers.
I can print and send these for a fee.
This was the Alpha version. See link for newest version.
The author hasn't provided the model origin yet.