Trapezoidal razor blade holder. Have loose razor blades and no holder? print this!
Tabs were added to prevent warping as this design was tested on a reprap printer without a heatted bed. clip them off after print is finished. need screw and nut for rear hole to clamp razor blade into holder. when slicing the STL, make sure to add a few extra shells to prevent the blade from pushing through the top/bottom walls....or just have a high print density