Multiboard ruler holder (parametric)

Ruler holder for Multiboard using the "big thread" connection type. There are other models out there that use the "small thread" type, but I wanted something that occupies more visual space so it's more obvious to me when a tool is missing from its spot. Instead of a coin slot for unscrewing from your Multiboard plate (there isn't any room), two slots are included to help grab it with your fingernails or pliers. Parameters in FreeCAD project can be adjusted to change the diameters of the nub to fit different objects. Default settings (and included model) have an 8mm outer and a 4mm inner diameter, which I designed to easily fit my Westcott metal ruler. Note: Do NOT print with supports! Designed supports are included with the model. Print using 0.2mm layer height.