Originally Posted by carlnpa ...Vacuum is good for sheets but as the parts get smaller, like 4"x5", very high vacuum with high volume is required, like -10-14.7 psi.... |
It is actually quite simple: you strengthen your walls and windows and install an airlock for a door. Run the pressure inside your workshop up to 3 atmospheres absolute and vent your vacuum pump outside your workshop. This will give you a pressure differential across your vacuum table of about 40 psi quite easily. If you still need more holding power just run the pressure up and consult the US Navy dive tables to see how long you should spend decompressing in your airlock.