Hello. Ive taken a school clock and turned into a battery operated one for under $10.
Step 1: Step 1: Gather Your Matrials
You will need:
1) Your broken clock (duh)
2) An old clock or a motor (you can get one at Micheals for $8.99)
3) A screwdriver
4) A battery
5) Wall putty (if you want the original hands to work)
Step 2: Step 2: Locate the Motor
The motor should be covered for performance reasons so unscrew the cover to reval the motor.
Step 3: Step 3: Figure Out How to Expose the Hands
Figure out how to pop the glass and rim (if there is one) so when the time comes take out the hands.
Step 4: Step 4: Dismantle the Motor
Take apart the motor. Save everything (if you want) in case if you need it for a diffrent project.
NOTE: With this clock (Simplex brand) a gear was attached to all of the hands. You may need to take a hammer to pry it off. Also if the second hand dosen't work use a diffrent one or a similar one.
Step 5: Step 5: Insert the Motor
Make sure there is a big enough hole. If its too big try to center it out as best as you can.
Step 6: Step 6: Insert the Nut to Hold the Motor
Insert the nut to hold the motor. Insert them in this order:
Get the nut on as GOOD as POSSIBLE otherwise the hour hand will appear incorrectly.
Step 7: Step 7: Insert the Hands
If you want to use the original hands apply the wall putty to the the hands.
Step 8: Step 7.5: Install the Hands
Install the hands at 12 o' clock. Install in this order:
1) hour hand
2) minute hand
STOP DONT INSTALL SECOND HAND YET! MOVE TO THE NEXT STEP!
Step 9: Step 7.8: Install the Nut
Make sure that the nut that holds the minute hand isnt on too tight otherwise it won't move. If the nut's on too loose it will fall to the 6. Now install the second hand.
Step 10: Step 8: Test the Clock
Before actually using the clock move the hands to make sure they move. Make sure the hour hand moves to every number when the minute hand is at 12.
Step 11: Step 9: Reinstall the Glass (and the Rim)
The glass should either screw or snap on along with the rim cause the rim holds the glass.
Step 12: Step 10: Done!
All Done! Insert the AA battery and your all set to go!