1x3 Gridfinity bin for the Bowden Speed Loader w/ Filament Guide

I recently made myself a Bowden Speed Loader, and along with it, the official Gridfinity base from MrFlippant. However, I didn't realize that the official base doesn't fit the base piece that has the filament guide added on. This remix takes the official gridfinity base and adds a cutout notch for the filament guide.

Added a cutout notch for the filament guide.