This is a parametric model intended to be easier to print than a previously uploaded design that used spherical balls.

Since this code has no error checking, it's possible for you to specify a design that's completely impossible to print.

An important parameter is Clearance. The uploaded .stl file has a value of 0.5 mm. A print with a value of 0.2 mm required considerable effort to free up the parts, and even then it was on the stiff side. Too large a value and the pins may tend to get cocked sideways.

The rendering was created with Blender.