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Step 9Building the Simple Controller
1. First solder the LED lead wires together per the circuit diagram. Insulate the solder joints with heat shrink tubing. Make sure you have the correct positive (red) and negative (black) wires going to the connector - the LEDs won't light up if the polarity is reversed.
2. Solder together the on/off switch, 22 ohm resistor, 25-ohm rheostat, DC power jack, and male part of the motor and LED connectors per the circuit diagram. The most important part is the making sure of the correct polarity.
3. Attach the on/off switch, 25-ohm rheostat, and DC power jack to the base plate with double stick foam tape. The on/off switch and power jack should be located near the outside edge and be visible thru an opening in the metal skirt going around the legs (1/4-20 bolts) of the base plate.
4. Reassemble the glass cylinder, wax cube, and drive shaft and any remaining components. Plug the 6 VDC power supply inotothe DC jack and hit the on switch. Adjust the rheostat to achieve the desired cube rotational speed.
That's it - you're done !
2. Solder together the on/off switch, 22 ohm resistor, 25-ohm rheostat, DC power jack, and male part of the motor and LED connectors per the circuit diagram. The most important part is the making sure of the correct polarity.
3. Attach the on/off switch, 25-ohm rheostat, and DC power jack to the base plate with double stick foam tape. The on/off switch and power jack should be located near the outside edge and be visible thru an opening in the metal skirt going around the legs (1/4-20 bolts) of the base plate.
4. Reassemble the glass cylinder, wax cube, and drive shaft and any remaining components. Plug the 6 VDC power supply inotothe DC jack and hit the on switch. Adjust the rheostat to achieve the desired cube rotational speed.
That's it - you're done !
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