I remixed this to be able to have 3 holes for a tool holder with a vacuum attachment I am designing. I included the openscad file & a stl file of the size I used. This is also customizable like the original, but adds 3 additional variables. You can also use this to create 2 holes instead of 3.
See http://www.thingiverse.com/thing:907882 for further details.
See http://www.thingiverse.com/thing:1054068 for the drill guide to use with this.
Tool_Holder_Nut_Trap_rev1.scad | 4.5KB | |
Tool_Holder_Nut_Trap_x2_76_2mm_28mm_rev1_repaired.stl | 220.3KB |