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WTB: jayrob keychain

Prototype

Prototype

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DJNY said:
It works with my 445nm CR2 keychain and RA_pierce also told that this duty cycle should be no problem. The whole body at these chains works a heatsink!
Click to expand...

The CR2 one is a lot larger than these.
 





C

combat engineer

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I have no problem building this kit, but I have one question that has been bothering me. will somebody please tell me if pennys are a better conductor of heat than HVAC copper refrigerant lines or romex wire? I'm not complaining, I already have a vile filled with shavings from penny dated before 69, but I also have plenty of copper from freon lines, hard drawn water pipe copper, and romex wire. all seperate ofcourse. which one should I be useing and how hard should I push this 2W 445nm respectivly? I was thinking about making a piece of hard drawn coper into the actual caseing. I don't have the luxury of buying knock off Surefires and gutting them.
 
rocket689

rocket689

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combat engineer said:
I have no problem building this kit, but I have one question that has been bothering me. will somebody please tell me if pennys are a better conductor of heat than HVAC copper refrigerant lines or romex wire? I'm not complaining, I already have a vile filled with shavings from penny dated before 69, but I also have plenty of copper from freon lines, hard drawn water pipe copper, and romex wire. all seperate ofcourse. which one should I be useing and how hard should I push this 2W 445nm respectivly? I was thinking about making a piece of hard drawn coper into the actual caseing. I don't have the luxury of buying knock off Surefires and gutting them.
Click to expand...

You have no problem building this laser, yet, you just joined the forum and are a noob here?? This host is the size of your pinky finger; I know, I've built a few. Your first post should be used to introduce yourself to the community.

Oh yeah, you resurrected a thread that has not been posted on in 7 months. ALOT of the members here will flame you big time for that. Just FYI.

almost forgot...welcome to LPF! Please read the safety stickies thoroughly. :)
 
Last edited:
C

combat engineer

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I have no problem with the process involved in constructing this project. Is that better? The question was, (and you should feel flattered that I ask this group instead of looking it up) what is the chemical makeup of a penny predating 1982 that makes it superior to using other forms of copper. Since, I can look around my lab and without having to dig through anything, and find three different forms of copper which all have a different heat absorption and dispassion ratios. No, I have no, absolutely no problem machining parts from scratch without having to destroy want-a-be Sure Fire’s and such. But since this is a forum where people have gone through this already, I figure it wouldn’t hurt to ask. I’m no chemist, and by all means I was not searching for an answer explaining the difference between conductive and conductance, nor was I looking for an explanation of the correlation between transition metals in group 1b and there valance electrons and how heat and electricity use them to travel from atom to atom which if you want to tear down my question piece by piece we can take that into consideration in building and use the proper metal for the job. I thought this was a more civilized forum where I could get a brief explanation why pennies were chosen. If I had to guess it would be due to the percent of true copper in the penny along with what it was mixed with (if anything) that held a particular favorite in the forums host heart. What threw me off are the instructions to use older pennies which more than likely have a higher percent of copper. Once again, I’m no expert in another subject, this time coin collecting. So logic tells me to ask a question because surly nobody with the capability to machine these parts would have a lack of pure copper laying around to building heat sinks out of and be reduced to filing pennies down in a vice. Maybe he did it for the sake of informing people what they can use if they don’t have 4 copper CPU heat sinks laying around just waiting to have a laser diode mounted in them or a labyrinth of copper pipe ranging in different consistency’s and thicknesses. Who knows? I don’t, hence the question that got raised 7 months after the forum went inactive. I apologize for not having an internet connection on the area of the planet I was on 7 months ago; we might have avoided such an embarrassing situation that makes one of us look easily amused. I was busy using a completely different type of technology that civilians are not privy to. I apologize for disturbing the sanctity of this forum. I had previously read through the entire thing and didn’t get the answer I was looking for, and I hate myself for razing a question that other people might benefit from later on. So to keep your holy forum true and ready for the sale of premade kits that take the fun and inventive gene out of people who might have had a chance discovering that they can in fact build something as remedial as this, I’ll withdraw my profile and move along.
 
daguin

daguin

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combat engineer said:
I have no problem with the process involved in constructing this project. Is that better? The question was, (and you should feel flattered that I ask this group instead of looking it up) what is the chemical makeup of a penny predating 1982 that makes it superior to using other forms of copper. Since, I can look around my lab and without having to dig through anything, and find three different forms of copper which all have a different heat absorption and dispassion ratios. No, I have no, absolutely no problem machining parts from scratch without having to destroy want-a-be Sure Fire’s and such. But since this is a forum where people have gone through this already, I figure it wouldn’t hurt to ask. I’m no chemist, and by all means I was not searching for an answer explaining the difference between conductive and conductance, nor was I looking for an explanation of the correlation between transition metals in group 1b and there valance electrons and how heat and electricity use them to travel from atom to atom which if you want to tear down my question piece by piece we can take that into consideration in building and use the proper metal for the job. I thought this was a more civilized forum where I could get a brief explanation why pennies were chosen. If I had to guess it would be due to the percent of true copper in the penny along with what it was mixed with (if anything) that held a particular favorite in the forums host heart. What threw me off are the instructions to use older pennies which more than likely have a higher percent of copper. Once again, I’m no expert in another subject, this time coin collecting. So logic tells me to ask a question because surly nobody with the capability to machine these parts would have a lack of pure copper laying around to building heat sinks out of and be reduced to filing pennies down in a vice. Maybe he did it for the sake of informing people what they can use if they don’t have 4 copper CPU heat sinks laying around just waiting to have a laser diode mounted in them or a labyrinth of copper pipe ranging in different consistency’s and thicknesses. Who knows? I don’t, hence the question that got raised 7 months after the forum went inactive. I apologize for not having an internet connection on the area of the planet I was on 7 months ago; we might have avoided such an embarrassing situation that makes one of us look easily amused. I was busy using a completely different type of technology that civilians are not privy to. I apologize for disturbing the sanctity of this forum. I had previously read through the entire thing and didn’t get the answer I was looking for, and I hate myself for razing a question that other people might benefit from later on. So to keep your holy forum true and ready for the sale of premade kits that take the fun and inventive gene out of people who might have had a chance discovering that they can in fact build something as remedial as this, I’ll withdraw my profile and move along.
Click to expand...

They were chosen because they were available, cheap, and convenient.

Perhaps you would be happier in a metal composition forum ;)

Peace,
dave
 
C

combat engineer

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daguin said:
They were chosen because they were available, cheap, and convenient.

Perhaps you would be happier in a metal composition forum ;)

Peace,
dave
Click to expand...

Thank you very much for answering Mr. Dave. That is all I wanted to know. I see it wasn’t hard for you to answer without name calling or the use of slang, sarcasm, or reiterating your accomplishments. An answer to my question of that caliber defiantly defines your humbleness, wisdom, integrity, and self-respect. Now that I know the reason, I can just continue using what I have been using. Which would be the AC line set copper. Let me know if you would like me to mail you an envelope quantity of it already shaved down free of charge.

Respectfully,
Blake
 
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