E3D V6 Extruder Carriage

I'm building my own printer design, and when it came time for the hotend carriage, I couldn't find anything on Thingiverse that would work with my design, and I didn't want to redesign the whole thing, so I opened up Inventor and whipped this up. It's a symmetrical design, so print two and bolt them together. As designed, it's intended to run along two horizontally-oriented 8mm steel rods using linear bearings, spaced 40mm apart. You'll need to ream out the bearing holes for a proper press fit.