Customizable optical holder

Open-source, customizable holder for not used optical elements. Prerendered models include metric (12 mm diameter) and imperial (12.7 mm diameter) holders of different sizes. Different available by changing parameters in the .scad file. 

For a complete holder, I recommend printing two plates and mounting posts between them, as shown in the picture.

Filenames in the form of: NxM_XxY_Dd_thT_Mm.stl where N, M give a number of holes in the X, Y direction; X, Y are the outside dimension of the whole holder; d is the hole diameter in mm, T is the thickness of a holder plate and m is the mounting hole size.

For slower computers or non-nightly OpenSCAD versions, I recommend turning off hole filleting by changing the holefilletbool variable to false.