Now that the device is fully operational,it was time to see how it worked. The X-Y stage response was very quick, so I added some capacitors to the joystick potentiometers to slow down and smooth the motion.
The focal spot is a bit large for the small piece of wood that the stage can handle, but it is still possible to write and do some simple graphics.
Solar art???? Looks like I need to do some practicing, and make the thing accept multiple lenses, so I can draw with a finer spot.
Lots of fun, and a good demonstration of the servo amplifier. Amazing how much energy there is in a 1 foot circle of sunlight!