Mercy's Caduceus Staff Prop
3D-Printed, Painted, and Illuminated Mercy Caduceus Staff
Base of 3D printing parts came from: https://www.thingiverse.com/thing:2416804
With updated cylinder for LED lighting from: https://www.thingiverse.com/make:721662
And the improved hilt from: https://www.thingiverse.com/thing:4004977
Tube: 1 1/4"OD X 1"ID X 96" Polycarbonate 8-foot tube from https://www.mscdirect.com/product/details/63406144
Inside of tube painted with Ikea black acrylic paint. Poured paint down tube and spread by forcing a small sponge through repeatedly, attached with string. Dried by running a pool-floatie air-pump through the tube for a day.
Masked parts off with green "Frog" tape, spray painted with generic primer and sanded several times, spray painted with gloss paints, and a clear-coat spray.
To avoid learning howto edit 3D models or try to drill into the printed parts, I decided to go wireless.More ▼
I slid an Adafruit Bluefruit Feather m0 into the 1-inch inner-diameter tube with a cylindrical rechargeable battery: https://www.adafruit.com/product/2995 and https://www.adafruit.com/product/1781
Tip of the staff is lit with an Adafruit "Jewel" LED 1-inch circle: https://www.adafruit.com/product/2226
With a really adorable 3/4" acrylic sphere hot-glued into the tip's end to act as diffusion. Three long wires were fed down the tube and soldered to make the connections. It all fits quite nicely.
Source code: https://gist.github.com/paulgorman/81ec7809078ab62e920169cecdb0c405