The first two images are with the top mocked up. Im using mixture of 1/4" x 4" and 1/4" x 6" because its what i had and what the scrap yard had.
The silver plate with a gear on it is actually my old garage door motor. The control board took a **** so i replace everything and hard wired the motor. Its already a really good torque multiplication with a worm drive gear. Then i did another 1 to 1.5 multiplication with chain gears.
Old ball hitch mount that will be used to add or remove a large bench vice.
The main frames are from 2.5" square tubing and 2" square tubing i also got from the scrapyard. I played around with tig welding 1/8" flat bar to the 2" tubing to make a snugger fit but that was too tight. So i went with what i had and im going to weld 2 nuts on each leg so it can be snugged down when the position is set.
All of the top welds need to ground down so the plates can be drilled and the frame tapped for each plate.
I made my own c channel out of 1/4" plate and thats what each jack mounts to. I used #40 chain and 12 tooth gears with mostly v series hubs. I cleaned out my local fleet farm and had to use a few w series hubs that i machined down. There was some trial and error but i got it working.
I also plan to install grease zerks on each leg and just pack the living **** out of them.
I also plan to have a 2×3' or 3x3' pull out plasma cutting table and a small tool box mounted to one side. This is the last table i want to build for quite some time so im going to go all out. Ill will put up more pics as i go, but my little guy is taking some priority.