Hello,
Yes i’ve made some progress, i’ve got a working prototype unit that i’ve hooked up to a standard gast vacuum pump. I’m trying to build a better control system for it now, as well as start ordering components to start production.
I’ve decided to make the unit as safe as possible, so i’ve added the following: you will plug in a constant vacuum pump into my unit (it will look like a wall socket) and if either the pump or my unit malfunctions, and you suddenly get 20” vacuum, it will automatically shut the pump off. Another feature will be self-calibration when you first start the unit.
I’ll let you guys know when i’m ready to start selling, hopefully very soon. Expect preliminary prices to be $50-$60.
Thanks,
Aaron