Heads Will Roll
Intro: Heads Will Roll
I can motorize a ball and make it roll--but it tends to lose its head!
STEP 1:
To make this requires a number of 3d parts, a motor some magnets (bar) and 1/2 inch round ceramic magnets. Also required are a cr2032 battery and battery holder. For a tire, I used a rubber hose washer.
Two of the "sphere 160" pieces are needed.
STEP 2:
Print the wheel and put the washer "tire" into the slot.
STEP 3:
Push the motor into the motor carrier.
STEP 4:
Add the wheel (friction fit) onto the motor shaft.
STEP 5:
Add the idle wheel onto the shaft.
STEP 6:
Press fit the hub onto the end of the idle shaft axle.
STEP 7:
Insert the bar magnet into the magnet holder. Add the spring from a ball point pen onto the shaft.
STEP 8:
Remove the nubs from the holder.
STEP 9:
Use superglue gel to attach the battery holder to the bottom of the motor base.
STEP 10:
Solder the motor wires to the battery holder.
STEP 11:
Insert the round magnet (friction fit) into the head.
STEP 12:
Insert the battery, then join the two sphere pieces with tape.
The ball will run around on a smooth floor. The head seems to be too heavy and it falls off every chance it gets.