Heres a thought.
many years ago i made 2 rotary tables of sorts.
One manually rotated by hand for my sherline it had a thread to hold a drill chuck. It had a 2"(50mm) table. Rotated by a tommy bar in the side holes.
Two an old 1980's Ford windscreen wiper motor machined and modified to make a 2.75 "(70mm) rotary table. The wiper motor is the dark grey part.
?The ratio of the worm drive was dreadful but it functioned for me then.?
