RepRapPro vertical x-carriage for Tech3D Bowden hot-end

X-carriage for the RepRapPro Mendel machine, but slightly (3mm) wider for the Tech3D.org Bowden hot ends.

Fits up to 4 hot ends.

Compatible with the vertical x standard - so may work with Prusa I3, Mendel 90 but not tested.

Files checked and printed.