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FrozenGate by Avery

School project?

  • Thread starter Thread starter Deleted member 22482
  • Start date Start date
D

Deleted member 22482

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Hello!

As a school project we are going to either

1) Invent something new

or

2) Take something and develop it to something new

and I was thinking about taking a lab heatsink, putting in a cheap IR diode, put a fan on the backside of the heatsink and couple it all up to a power supply with a switch. Okay? Now what? So I'm going to put a long foam tube where the laser comes out with a cap on it on the far end, and then drill a hole somewhere in the middle of the tube, in this way, when I demonstrate it noone needs goggles as everything is hidden and what is so new is that you just stick in a match or whatever in that hole I drilled, and voila! It ignites..

Now that I think about it, it sucks. But I want to do something with lasers. What would you suggest? We have a total budget of $25 per student.

I was also thinking to do a shock-absorber which I've been thinking about for the past weeks, and I have also tried it in my R/C airplanes and no matter how I land and in what speed, force, etc. the plane never gets wrecked. But I don't want to show it to the people there, they might steal it and earn some money on it. :whistle:

What do you think? What should I do?
 





Soo with 25$ you can get an LPC-815 or similar, I've seen some 100mw red diodes lying around on eBay for less then 5$ sometimes just check around. Get a cheap heatsink if you need 5$ - 10$. And there are some drivers that are very inexpensive these days. Or you can build your own DDL circuit 5$ max. And I would be very careful since there are others in your class so if you're going to be burning stuff make sure whoever is close has goggles or they all move back and you wear them while burning.

-Anthony
 
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Some guy is having an Easter sale and has cheap heatsinks.
 
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What if you light the match and the foam tube catches on fire?, you should try a phr diode and and a metal tube.

Yea I agree. If possible use a metal tube it's much safer. Or at least some sort of plastic. Plastic might still melt but it would not catch on fire :beer:

-Anthony
 
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Yeah.. But I don't think it's such a good project.. I mean, it's also supposed to be useful our teacher said, and you could just use a lighter?
 
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Why don't you make a laser flashlight ?
or maybe a laser heater !

Jim
 
Yeah.. But I don't think it's such a good project.. I mean, it's also supposed to be useful our teacher said, and you could just use a lighter?

Use an unfocused blu ray diode as a light source for like a flashlight or somerthing kind of like a black light.


Edit: you beat me to it.
 
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Take a blue-ray diode, unfocus it and make a UV flashlight !
Don't forget to take some fluorescent materials with you :D

BTW: You posted in my sales thread are you still interested ?

Jim
 
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Take a blue-ray diode, unfocus it and make a UV flashlight !
Don't forget to take some fluorescent materials with you :D

BTW: You posted in my sales thread are you still interested ?

Jim

Why are we both thinking of the same ideas:thinking:
 
Hmm.. I'm not sure. It has to take long time, 8-9 hours in total. I'm going to make the driver myself, so that'll take some extra time. But a simple unfocused laser diode in a flashlight host can't take too long time..

Jim, I'm probably still interested in your heatsink. Until I know what I want to do. :D

More tips?
 
I suggest you, not to put it inside a flashlight host !
Build it inside a project box, it will look more unique !

Jim
 
You can make a small laser TEC cooler !
What i mean is:
You take a heatsink with flatbase and you glue a TEC on the bottom of the heatsink, you make a driver for the Laser Diode and for the TEC and then you can use the other cold side of the TEC to cool things :D

Jim
 


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