Instructables
Picture of Miniature 2in1 engraver and drill
IMG_20130607_164957.jpg
Before I start, I must tell you that this is my first ever instructable and I am 15 years old so I would really like to hear some feedback and constructive criticism from you guys. ALSO, PLEASE COULD YOU VOTE FOR ME IN THE BATTERY POWERED CONTEST AND THE POCKET SIZED ELECTRONICS CONTEST. BIG THANK YOU!
 In this instructable, I am going to show you how to make a simple yet effective miniature engraver and drill out of some common items you have probably lying around in your house. --- Yes! This means it can be virtually FREE!
Due to the restriction of the amount of power on the tiny motor that is used, the engraver works better than the drill. To overcome this problem you could use a larger motor with a higher voltage but you would probably have to choose a thicker drill bit as it will have a thicker shaft.
Because this product is so small, it can be taken with you virtually anywhere and be put to use.

MATERIALS:
>
Small motor with a relatively low voltage. Also the shaft should have the same diameter as the drill bit and inside of wire casing.
> 2 pieces of wire that are approximately 30cm long.
> Small switch.
> 9V battery clip.
> Wire casing - the same diameter inside as drill bit and motor shaft so they fit snuggly.
> Drill bit - the same diameter as motor shaft and inside of wire casing.
> Pen lid - Preferably on from a BIC pen as thay have only one hole at front.
> 3 1.5V AA Batteries
> Triple AA battery holder with 9V battery clip
> Solder wire
OPTIONAL:
> String
> Tape
> Piece of pen grip
> Piece of plug pin protector

TOOLS:
>
Soldering iron - Be carefull as it can burn you and dony inhale the smoke, do it in a well ventilated area.
> Knife

Below is the finished product
 
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InnovationBot15 (author) 1 year ago
Thank CoolKids! By the way, great tip! Ill be sure to use it in my future projects :) The only reason that I didnt use a single wire was because they are weaker than lots of wires bundled and coiled together. Anyways, thanks for the advice, nice to hear some constructive criticism! :)
coolkids1 year ago
your wires being stranded did not give you a great solder but a good one so the next time you are soldering use a single wire or coil it hard so as to make it look like single piece anyways love the idea
daviskilla1 year ago
You could of just used that knife you had there to scratch that H in the wood.
InnovationBot15 (author) 1 year ago
Thanks, I really appreciate that olmicah!
Please can you vote for me in all the contests that I have entered in. Thanks:)
You can also house the whole thing into a pen and not have to wrap it in string!
I suggest using heat shrink tubing to hold the motor shaft and drill bit together as it is stronger so it will prevent the drill bit from flying off! Also use it to cover the joints for strength and prevent it from short circuiting.
Have a nice time making it with your kids :o
oldmicah1 year ago
That is a slick little idea! I may have to do this with my kids. Thank you for sharing!