The file 'Ruler Holder 3D Printer Model' is (stl) file type, size is 9.5KB.
I have a Westcott brand ruler that's 3cm wide and 1.5mm wide. It's perfect for measuring both sides of my RepRap i3's Z axis and I lose it often.
This Ruler Holder, when attached with double stick tape or glue gives me a perfect place to store the ruler for whenever I need it. On the WanHao/Monoprice i3 you may need to file a small spot in the holder to clear the screws from the Z axis limit switch.
Other sized thin rulers should work with this design after scaling.
Ruler_Holder.stl | 127.9KB |