--For a long time I've wanted to have a rotary welding table so's I don't have to weld round stuff in 4 sections, turning the assembly each time. Well they're available but they cost a bloody fortune. So my idea was to modify one of those windshield wiper motor assemblies, the ones with the
20-to-1 worm drive. Turns out that's not nearly slow enough, even with the finest motor controller. I'd messed around with the idea of adding a gearbox to slow it down further but the cost of the components wasn't small. Then a pal suggested I couple two of the worm drive units in series and that's what I've started to do. Here's a photo of the 'output' stage; so far I've removed the motor and machined a shaft support. Support has an internal oilite bushing and shaft has a collar inside to limit longitudinal play. More photos to follow when I get more built..- posted
12 years ago