I discovered this a little while ago, and I immediately wanted one. Until I saw the price. I didn't want to pay $40.00 plus shipping for something I could easily make myself. So I got to work on my own, and I am very happy with the result. I built it for a tenth of the cost and was able to choose my own shape and look for the gun.

Step 1: What You Need:

- Toy gun
- Duct tape
- Wire
- Battery pack
- Superglue
- Motor
- Momentary switch
- Pencil eraser
- The shaft of a multi-bit screwdriver OR an extension bit
- Forward/Reverse switch (if you have one skip step 2) OR if you don't have one:
                                                                                                                                 - 2 small nails
                                                                                                                                 - 2 CONDUCTIVE
                                                                                                                                 - Magnetic tape
                                                                                                                                 - A 2x2 Lego brick
- Hot glue gun
- Rotary tool
- Soldering iron and solder
- Screwdriver
- Drill
WOW!!!! awesome
This is an interesting idea. However, you cannot simply hook up a motor to a battery than attach the bit and start screwing. It works on small screws that aren't very tight but the motor will likely to be burnt if you need to unscrew some tighten screws. ( in most particle cases, you probably want to tighten the screw) You probably need a high power motor or a gear box to increase the torque. Also, you need to put a motor driver inside and current limiting circuit to protect the motor and increase the motor's service lifetime.
That is true, but I didn't plan for heavy-duty workloads when I made this. I made it as a fun little toy to use on small screws, like those in DVD players, and for those it works great. When confronted with tougher screws I use plain old manual screwdrivers.
nice job on it simple easy to make and doesn't cost 40 dollers (considering this that's prttey unreasonable)
for a much easier and safer forward/reverse switch just get a cheap two position, 6 connectors slide switch and wire them like this: <br> <br>+(connect into the - to the motor) -(connect into the + to the motor) <br>+(from battery) -(from battery) <br>-(to motor) +(to motor) <br> <br>now you have a 0.29 cent foward/reverse switch.