This is the Support Arm Endcap for the Enraged Rabbit Cottontail Buffer for the ERCF v2 remixed to accept a BTT MMB CAN v2.0. The only change from the original v2 assembly instructions is the addition of two more m3 heat set inserts.
The author remixed this model.
Modified to accept the newer board. Fixed interference issue with top right tab and zip-tie channels.