I can never resist taking apart Dollar Store gadgets to see what's
inside, what makes them work and can I use the parts for my models.
This time round it is a $2 9Vdc motorized paper stapler. I don't
have a clue how the stapler works as I couldn't get it to fire the
staple. So off came the covers. I had to snip the plastic shell off,
destroyed it in the process and then unscrew something like a dozen
This is the loot. A small motor with a metal drive gear to drive a
train of four metal reduction gears to finally drive a 2 3/8 inch
radius metal swing arm that fires the staple.
The motor has a mini on-off switch and two other mini switches in
series. One is a lever operated on-off limit switch. The other is a
spring loaded plunger mini switch for rotation direction (normal and
reverse when plunger is fully depressed.) The parts in this set up
is already worth a lot more than $2. I haven't figured out what I
will do with them yet.
The reduction gear train is made of metal and therefore very durable
and suitable for high powered motors I shall be using for large RC
boats. They comprise 1pc 1 inch disc gear. 2 pcs 1 inch gears with a
smaller 1/4 inch flange gear. 1 pc 3/4 inch gear with a 1/2 inch
flange gear. I shall have to buy two more staplers in case the boat
project has triple propellers.
I haven't any ideas to use the swing arm.
- posted 12 years ago