Introduction: Snowflake Gear Wreath
This "back lit moving gear" wreath was created to replace a dull wall hanging in Santa's Shop. Santa's Shop is an animated, story telling art installation available for public viewing in the window of Brightway Insurance Agency from 5:30 P.M. to 9 P.M. daily during December of 2018 at 9127 SW 52nd Ave, Gainesville, FL 32608.
Step 1: Materials
Quimat metal gear servo motor (this has no end stops and is easy to convert to continuous rotation)
(7) 6mm x 19mm x 6mm bearings
12" x 10.5" plywood (1/2 inch thick)
(4) M3 x 8mm screws
12 volt dc power supply (for led lights)
3 volt power supply (for gear motor)
(24) 3/4 inch wood screws
3d Printed Parts
(7) bearing mounts
(4) corner bkta
(1) drivegear short
(1) servo gear motor
(7) nut105 (print at 105% size)
(1) servo horn short
(7) snowflake gear
Remove four screws from the servo motor (this metal geared servo motor has no end stops--it is ideal for converting to a powerful geared dc motor).
On the circuit board, cut the two wires from the motor and the three wires from the pot. Remove the circuit board.
Solder wires to the motor wires.
Replace the four screws and you now have a powerful metal gear motor with servo horns for attaching to things.
Press fit the bearings into the bearing holders.
One at a time, mount the gears. Make sure that the gears mesh and turn freely. Secure each gear with a printed nut.
The drive motor and seven driven gears make up my wreath. You must have an even number of gears for a closed gear system.
Fasten the corner standoffs to the plywood using wood screws.
Test the operation, then remove the gears and paint the wood. For anyone interested, the blue scrap plywood I am using was part of the "swamp" in Froggy World.
Attach the lights to the rear (peel the tape and stick them on). Add paint, glitter and "jewels" to suit your taste!