L...... Throwie

Danjoo · Dec 21, 2008

This evening i dissamble a sled and look around what is usable.
And i think about the magnets. :

After small brainstorming i remember these cheap 1-5mw red module i bought some time ago.
And luckily i have hundreds "LR44" 1,5V button cell left, from another projekt.

Small test and 3 volt are ok for the modules.
I solder the lines direktly to the button cell.
The magnet hold both button cells together.

Here they are world first "Laser Throwie" ;D

:exclamationHandle with care its still laser!!! :exclamation

Daniel

:exclamation

jamilm9 · Dec 21, 2008

nice

pseudolobster · Dec 21, 2008

Heh.. Clever.

A bit big for a throwie, and hardly a world's first...

Here's a little one I made... It has no lens, since I was basically using it as a really bright LED, though even if I put an aixiz head on it the magnets were powerful enough to hold it up.

Bionic-Badger · Dec 21, 2008

I always thought one of the connotations of a "throwie" was "throw away" as much as throwing to stick on something. So this might be a bit expensive for a "throwie."

Danjoo · Dec 22, 2008

My throwie is not expensive. Laser module just cost about 2$

But another big con.
Battries are empty right now, after only one day.

Ok forgott my sunday afternoon invention.

Daniel

Benm · Dec 22, 2008

Those batteries dont have much capacity to start with, perhaps a blink circuit would extend lifetime a bit.

Also, i wonder how good directly soldering wires onto them is - i think the temperature might degrade them.

Danjoo · Dec 23, 2008

i solder very hot and very fast, this project is nothing serious.

Just play araound with lasers.

:

jamilm9 · Dec 23, 2008

how do you get the solder to stick

danq · Dec 23, 2008

rather than soldering to the battery, you could solder to a small bit of steel can ("tin can"); then use the tiny maggots to attach the steel to the battery.
Or you could just wrap with electrical tape. ;-)

Danjoo · Dec 24, 2008

sand the surface you want to solder.

Use much heat but short time, maybe solder on a "heatsink".
Normally its not ok to solder button cells, its just for fun.
Button cell dont like the heat it shorten there lifetime and wortscase it can exlode. :

take care please

cendol89 · Mar 16, 2010

Hey bro,

I'm new to this, and I want know the estimation about how long will the button cell will last if I use for red laser module 650nm 5mW? how many voltage usually you use for that kind of module?

:thanks:

lasersbee · Mar 16, 2010

cendol89 said:
Hey bro,

I'm new to this, and I want know the estimation about how long will the button cell will last if I use for red laser module 650nm 5mW? how many voltage usually you use for that kind of module?

:thanks:

Man.... you need to read the Date of the Post you are replying to...
This Thread has been DEAD for over a year....

Jerry

Bearded_Galaxy · Mar 28, 2010

Lol. "Thread Necromancer" *Saves that to HDD*

HaloBlu · Mar 28, 2010

There are a few others too thread necromancer - Google Search

L...... Throwie

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