After numerous requests, and a lot of design concepts, we have come up with the Reinforcer BMG Extruder mount!
The Reinforcer was designed from the ground up to be very sturdy and rigid, and not allow any flex when doing speedy extrudes and retracts.
We have added slots for the mounting holes so there is side to side adjustment to get your extruder aligned perfectly with your hotend. The Reinforcer is compatible with any of the Railcore Y carriages including the printed one. The Reinforcer is a drop in replacement taking about 5 minutes to install.
Rigidity is so important to 3d printers, yet we have still managed to keep the weight at a minimal 33 grams.