I have posted a similar question on how to find a 1000 Volt switch needed to make a DMM and the end result is they are all custom jobs done by DMM manufacturer's. So it doesn't look like I can find one that competes with the ones out on the market unless I make my own. I have taken a Fluke DMM apart and looked at one. It looks like a pretty complex switch that they use. The question is, how does one go about making or designing switches? What processes and tools do I need to accomplish this task. I already know the rules of voltage and spacing from work on PCB's. I assume the same rules apply to switches. What kind of budget am I goanna need for this task.