Closing the 19” case
Estimated building time: 0,1 hours.
In all probability, the Parker screws are that sharp that they cut away the paint and ensure enough contact for grounding and shielding (at least for audio purposes). After closing the 19" it's recommendable to perform a ground connection check with an ordinary multimeter between the ground pin of the power connector and top/bottom plate.
If unsure connect a grounding strip between the housing and top/bottom plate:
Completely finished
Congratulations, you have finished the last section, finally the vocoder is assembled and adjusted and ready to deploy in your studio.
Time to enjoy this magical device, have fun !