This instructable is an entry in the Hurricane Laser Contest, so please vote!
This instructable is an entry in the Green Tech Contest, so please vote!
This is an entry in the Wheels Contest, so please vote!
Everyone riding a bike at night needs a headlight, or else someone might hit them with a car! But headlights are so expensive. I went to a bike shop in VA and the cheapest headlight was $25!!! That's crazy! So here's how to make one for pretty cheap!
WARNING: THIS INSTRUCTABLE USES POWER TOOLS AND ELECTRICAL COMPONENTS, I AM NOT RESPONSIBLE FOR ANYTHING STUPID YOU DO TO YOURSELF WHILE MAKING THIS FLASHLIGHT. WHEN USING THE DREMEL, IT DOES MAKE SPARKS, SO BE CAREFUL AND WEAR SAFETY GOGGLES!
Step 1: Ingredients
1- Altoids Tin (or Small project box)
3- 5mm High-Brightness LEDs
3- Snap-in LED holders
1- Switch of your choice. I used a sliding STSP switch.
1- 9V battery, or other battery. Just know how much power your LEDs need and what resistance to give them. I used noahw's instructable "LEDs for Beginners" to find out how much resistance to use.
1- 9V battery snap
Solder & Soldering Iron
Heat Shrink (optional)
For everything else:
1- old bike horn
E-6000 glue (or similar)
Drill will assorted drill-bits
Dremel with cutting wheel & sanding attachment
Safety goggles for when using power tools
Step 2: Wiring the LEDs
Step 3: Adding a switch
Step 4: We need power!
Solder the positive lead of the battery snap to the other lead on the switch.
Solder the negative lead of the battery snap to the negative lead of the LED setup.
Use heat shrink when needed.
Note: I didn't need resistors (unlike most LED projects) because I was using a 9V battery and each LED required 3V to light up. (3 LEDs x 3V of power per LED = 9V of power total)
Step 5: Mounting LEDs
My LEDs weren't really "snapping in" to their holders, and I drilled my holes a little too big, so I just used a little super-glue around the holders and the back of the LEDs (try not to get glue on the front of the LEDs because it dries white and will reduce the visibility of the light).
Step 7: Mount the Switch
Step 8: Electrical - DONE. Now Mount it on Bike.
Step 9: Take apart the horn.
Step 10: Glue it together
Step 12: Hurricane Laser Cutter
First of all, I like to do papercraft. Now I am using a hobby knife to cut all the pieces out, which makes it look terrible and is very time-consuming.
I also like to do some woodworking, and this would allow me to make precise cuts on my projects.
Third, my dad runs a service called Memory Links (www.memorylinks.com) and has to send his pieces off somewhere to get them laser engraved. My dad would most likely be very excited if I took the laser cutter to his office so he could manufacture his own Memory Links.
Fourth, I make paracord bracelets and have been wanted to put dog tags on them. I have the dog tags, just no way to put custom messages on them.
Wow, I have a lot of uses for a laser cutter! Please vote for me!
Wait! One last thing. I will also post an instructable on everything I do with the laser cutter if I win it!