Open Builds Acme Lead Screw conversion for Prusa X axis parts

Open Builds Acme Lead Screw and Nut Block conversion for Prusa X axis designed in Designspark Mechanical.

I wanted to try out the M8 Lead Screw and Nut Block from http://openbuildspartstore.com/nut-block-for-8mm-metric-acme-lead-screw/ before I designed it into a new printer using the Open Builds V slot extrusion so I came up with these parts as a quick test of the Lead Screw and block.

It is loosely based around the Aleph Objects Clamp X-ends, however I found some variations in the distan