Stepper-motor turntable drive?
Last year at Telford, I saw demonstrated, a superb turntable drive using a stepper motor and associated electronics.
I can neither find the leaflet I had, nor any mention of the beast on t'internet.
All I know is that it wasn't Metalsmiths, but was driving one of their turntables.
Can anyone point me at it, please?
Jeff, all,
Herewith some pix
Firstly the motor & gearbox. This is fixed directly to the bed of the well, it is about 95mm long, and is unfortunately rather noisy - Not awful, but not quiet enough! I will attach some sound deadening material to the underneath of the well in an attempt to quieten it a bit.
This is the brain.
On the left is the Pololu A4988 stepper driver, which does get hot! The board is tiny and has no mounting holes. It is fixed down by clamping two