Paparazzi Pan and Tilt Fail

I’m trying to make an old point and shoot camera follow you around the room. I need something to move the camera around. My super-powerful servos arrived today. I thought they might do the moving for me. I designed the little pan and tilt mechanism that you can see above. The tray on the left is where you put the camera. There is a servo behind the tray which does the panning, and the servo on the right does the tilting.

Above you can see how it works. You fit the mechanism on a tripod and put the camera on the tray. And it sort of does the job. The servos are powerful enough to support the camera weight and do the panning and tilting thing. But I don’t like the effect. I had this idea of a camera suspended in the air on a picture and moving from there. And the tilt and pan axes are in different planes, so that the camera moves in a curved path when I don’t want it to. Oh well. Back to the drawing board (or in this case OpenSCAD).