This is a holder for DA series collets. I CNC drilled a series of holes and added legs (10-32 screws). Nasty drillnig sounds were replaced with youtube supplied music.
Here's the code that did it:
(DA collet holder) O100 sub G73 Z-0.45 Q0.01 R0.01 F1.2 O100 endsub S1 M3 M8 O<apply_to_a_grid> call [0.7] [0.6] [0.9]    [0.05]  M2