I want to build a remote controlled pan/tilt tripod head for a 10kg video camera (broadcast quality). I know programming and electronics, but the knowledge of the strength of mechanical components is what I lack.
The camera triax adapter has available control outputs - analog 0-5 volts. I can program a PicAxe micro-controller or similar to generate the appropriate drive outputs and initialise sensors to know where the head is at during bootup. There are 2 digital circuits in the port. Not sure yet whether they are input or output.
There are of course retail products, but either they do not interface to the CCU controller I have or they cost $8000USD, so diy it is.
The basic plan is a downward facing motor for pan and an L shaped bracket mounted on a horizontally mounted motor for tilt. Centre of gravity may change with pan and tilt with obvoius goal to minimise this during design or choose components strong enough to cope.
Pan +/- 180 deg from centre
Tilt +/- 60 deg from horizontal
What would be most suitable drive mechanism given the mass? Servo, dc motor (with reduction gears) or worm screw drive, stepper or ??
I realise that a fairly hefty power supply and quite a bit of torque will be required.
Any component recommendations which would handle the load?