I'm just a hobby Machinist. I have three lathes, a BP J-head mill all with 3ph motors. This is what I'm thinking of doing. Getting a 5hp vfd drive and putting a disconnect box under it. Run the wires from the vfd in the top. Then run conduit from each machine to the bottom contacting all of them to the terminals. Use the machines on/off switches. It's only me working in the shop. So I can't see running two at a time. The largest motor is 3hp with the longest 3ph wire length being 20 feet to the BP 1hp. This would keep me from buying one vfd per machine. Would this setup work ?