Magnet holder

A test design in OpenSCAD for a magnet holder I needed to design for an endstop that my garage door uses.

I used the variable names in spanish because that's my first language and I thought I'd have to put them again here, anyways:

ancho=width
largo= length
alto= height
e= thickness
oreja= ear (distance from the outer wall to de circle's center)
orificio= orifice