An integrated lower vertex inspired by thing:16469 but derived from the original parts. Keeps the dimensions from the original MendelMax parts, but adds an access port for the hidden bolt.
UDATE2: Per Tesadorn's request I have made a version that takes an extra set of bottom extrusion to raise the bot so it can accommodate a PSU with the standard y-rod mounts.
UPDATE: Per Pointedstick's request I have attached seperated STLs that do not have the anti warp slits. One is a mirror of the other, you will need two of each.
STL file has 2 mirrored parts and has been run through cloud.netfabb, you will need to print 2 copies. Remove the mouse ears and two small overhang supports. Enjoy.