Rotary table

[athomp]

I wanted a rotary table for my mill but didn't want to have to pay big money for a decent sized one so I made my own 11" table. It's made out of 1/2" plate, 2 brake rotors and a ring gear off a lawnmower engine. I turned a spindle on the lathe and welded it to the bottom plate. A brake rotor is mounted on the spindle. Another brake rotor with the hub cut out is mounted upside down on the lower one. The ring gear is riveted to a piece of 16 gauge sheet metal and sandwiched between the two rotors. I made a worm gear on the lathe. Two thumb screws adjust the worm gear against the ring gear to eliminate backlash. There is a bolt on either side that can be screwed in against the lower brake rotor to lock the table in place. The gear ratio is a bit odd at 97:1. The whole thing weighs 123 lbs.