E3D-v6 1.75mm Direct Mount for Mendel90

This is a replacement for the wades_block.stl that is supplied with your M90 by NopHead with a 4mm hole.

Ordinarily the hole is ~3.2mm for 3mm filament, which is too big for 1.75 and too small for the PTFE.

This block prints flexibles very well because there is a PTFE liner all the way from the drive gear down into the heat break.