Parametric anti-crossover microphone cap

This is a cap/cover to prevent crossover from other instruments. It is used together with the shockmount I produced earlier (https://www.thingiverse.com/thing:2567703). During the recording of my bigband it became obvious that the percussion microphone (for conga's, shaker etc.) was getting to much unwanted sound from the drums and horns. So I developed this cap to shield it. On the inside I put some felt, but you could also use foam.

I did not think about publishing it until I printed it, so the OpenSCAD file is in Dutch. But it is not that difficult, so adaptions should be easy.