With the shell 3D-printed and the PCB assembled, I went ahead and put together my first “completed” mini-moving light, live on camera:
It went fairly well – everything mostly worked and nothing caught fire!
There are a few mechanical and electrical takeaways for the next version, including:
- Ennlarge the hole for LED wires in the lower case
- Make a brief instruction manual for myself of what needs to be assembled/installed/solder in what order
- Hole for program/enable switch access
- Fix tolerances on the tilt-servo/yoke interface
- Lengthen the body to accommodate a heatsink for the LED star
- Figure out mounting/hanging hardware
- Increase the spacing between Pan and Tilt Servo pads
- Order higher-current 5V regulator (1.5A 7805)
- Select a new inductor for up to 1A of current
- Select a new schottky diode for up to 24V
- Combine the transmit/receive control lines onto a single pin of the Arduino.
But all in all, for a first assembly, even tripping over a couple of silly mistakes on my part, things went pretty well. Onward to V0.4.