I'm thinking about making an "electronic indexer" for my 6" Vertex rotary table, but up front I'm wondering: How are people attaching stepper motors to tables like this?
From a few examples that I've seen on the internet, it looks like the motor is ultimately turning against...set screws?
IOW, there is a collar that slides over the "eccentric housing", and that collar has two radial set screws - which fix it to the eccentric housing - and it has a radial lever attached to it, and that lever is used to rotate the eccentric housing (through which the "worm shaft" passes) to engage or disengage the worm gear.
For some reason, that collar also has three M5 threaded holes in it (and I've been wondering what was the purpose of those three holes), and it looks like people are using those three holes in the collar to mount the stepper motor.
If this is the case, then the stepper motor is anchored by the set screws. Is this how it's generally being done? If so, that doesn't seem like a very desirable method to me.
Has anyone done it a different way?