I need a complete list for DIY Blu-Ray laser

WonHungLo

Thank you

But that wasn't what i meant, was what is the thing in the package? I have no clue lol

jonasa0601 said:

Kendon

Okay, then i think i'll start of with a quite powerfull red one then.

I got these glasses:

www . dragonlasers . com /catalog/Red-laser-beam-protection-640-750nm--Laser-Eyewear-p-16255 . html

They will protect my eyes well, won't they? I think i'll make a red laser like the one you said on ~250mW.

I'll just look at some guides here, and ask questions if needed. Thanks

EDIT: Quite cheap: >50$ in total, preferly around 40 bucks.

Click to expand...

got the same goggles, IMO they're good.

for 20 bucks we're talking about a ddl driver with a lm317 and some scrap case. if you want something fancy flashlight-style you will need the host and most certainly a driver that fits in there additionally. it has been done with a ddl driver though:

http://www.laserpointerforums.com/forums/YaBB.pl?num=1185701612/1091#1091

somehow i got the feeling that i need to make a fancy handheld too by now... :

jonasa0601 said:

Bionic-Badger

I spend over 30 mins continually searching for some kind of electricicity guide on google, but none was found. I could make a laser with some tutorial, but i want to know the fundamentals, so next time i can make one myself. I couldn't find such a guide, so thats why i'm asking here since i know, that atleast one of you most know where to find one. I can solder and so on, but i would like to know why and how all those electrical things react as they do. For example: why does a resistor do what it does?

I hope you will answer the questions, since i think i've done my searching.
Obviously you have the time to make a comprehensive post.

Thank you.

Btw "none has not fitted me yet."

You don't have to complain about my spelling, i'm 15 years old and live in Denmark, so i think its pretty good.
At least you got the message.

Click to expand...

check this for starters for resistors,ohms law etc as I did.
3w.facstaff.bucknell.edu/mastascu/elessonshtml/EEIndex.html

Bionic-Badger
loved the link to google

Yeah... that's a good starter link for someone to get his/her feet wet...

http://www.facstaff.bucknell.edu/mastascu/elessonshtml/EEIndex.html

Building a working Laser by someone that "just can't understand what OHM, AMP, etc. etc. is"...
is like me doing brain surgery without any medical knowledge...
I'm pretty sure my patient would die... :

@BB.... Well said....


Jerry

I had never soldered before yesterday and have a perfect laser today. Everyone here can help you, but you need to read up on stuff first. You can make a good phr laser for 80 dollars, and not much less. Trust me, it will be great for that price.

nateh202 said:

I had never soldered before yesterday and have a perfect laser today. Everyone here can help you, but you need to read up on stuff first. You can make a good phr laser for 80 dollars, and not much less. Trust me, it will be great for that price.

Click to expand...

[smiley=thumbsup.gif] Ya done good

Peace,
dave

jonasa0601, at the top of this section 'Tutorials, Help & Repairs', there are a bunch of good tutorials 'stickied' for helping you to learn the basics.

Building is actually really easy once you go through the 'learning curve'. But you will probably kill a diode or two in the process...
Jay

If you wanna get into electronics to understand more about it and stuff, so that eventually you can start building your own drivers and other types of circuits, maybe even progress to amplifiers and radios, http://www.allaboutcircuits.com is a good site. Even if you only want to know the basics, it's still a good site, since it's in a book form with chapters specifically on different parts of electronics and concepts. Choose a chapter you want to know more about, and read thoroughly.

nateh202 said:

[highlight]I had never soldered before yesterday and have a perfect laser today. [/highlight]Everyone here can help you, but you need to read up on stuff first. You can make a good phr laser for 80 dollars, and not much less. Trust me, it will be great for that price.

Click to expand...

:-? :-? :-? :-? :-? :-?

Jerry

lasersbee said:

[quote author=nateh202 link=1235928863/16#20 date=1236032324][highlight]I had never soldered before yesterday and have a perfect laser today. [/highlight]Everyone here can help you, but you need to read up on stuff first. You can make a good phr laser for 80 dollars, and not much less. Trust me, it will be great for that price.

Click to expand...

:-? :-? :-? :-? :-? :-?

Jerry[/quote]


We had some fun in PM's, Jerry  

Peace,
dave

[highlight]**EDIT**[/highlight]  and Nate handles frustration in a very mature manner.

I've read about current and voltage, but it's a bit unclear for me.

"# Voltage, as an expression of potential energy, is always relative between two locations, or points. Sometimes it is called a voltage "drop."
# When a voltage source is connected to a circuit, the voltage will cause a uniform flow of electrons through that circuit called a current."

Voltage is a term for how much energy that can pass throw the two points. (+ -)  <--Right?

An uniform flow of electrons is the current right?

Then it's pretty much the same, isn't it?


EDIT:

Is voltage the "force" that drives current? I mean, it's kinda like gravity that pulls us down? <--- i really need an answer for that.

And Amps is just charge/energy over time or really Coulumbs pr sek?

I understand Amp, Current but not exactly voltage, can someone faast explain?

Voltage is a charge potential between two points. That's the definition, and probably doesn't convey much meaning. What's more useful, however, is how voltage relates to current, resistance, capacitors, and other things. It's like gravity: "what" it is isn't so interesting as how it affects things.

Look up "basic electronics" on google and read over the guides, especially with respect to the physical "laws" that describe how we relate voltage, current, and all the other parts of a circuit. They'll also give short intuitive descriptions of what "voltage," "current" and other terms mean, but you don't need to know that so much as how they work.

Look this up:

Q (Charge, coulombs) = I (current, Amps) x t (time, seconds)

V (Voltage, V) = I (Current, Amps) x R (Resistance, Ohms)

NOW VOLTAGE gives you the ability to do the WORK (if your interested W=IRt ; note that the t has to be be there, as the transposition of current for charge will elimate the time, see first equation). So your electrons are flowing down the wire.... they meet resistance and go 'OH HELL LOOK ITS CONSUMING POWER!!!' and the amount of power it consumes is to do with the VOLTAGE (P=VI), so all the components in the circuit use power (SOLENOIDS AND CAPACITORS do not, they just restrict flow, and therefore voltage, read on) therefore there comes to a point when you run out of voltage and your stuck. At this point if your living in a house you will 'blackout' or if your voltage is low for laser pointer your LASER will go dim. Voltage, as previously said is the potential or ABILITY TO DO WORK. Think of it as PRESSURE in a water pipe, when you loose that pressure THATS IT MATE you've had it, your not going to have any flowing water. So the voltage allows the current to flow, thats it.

If your going to read this, read a little about heat, as Heat flows in its natural order from HOT TO COLD (i know thats a crude expression). Everything has a natural order, in electrics its actually the 'path of least resistance', in this case where energy isnt being consumed and where you have more voltage (ie where there isnt a resistance).

This would make sence if you've studied electrics otherwise these are who you have to look up: Ampre (french guy), Mr. Ohms (ohms law, the v=ir), Mr. Kirchoff (kirchoffs current law and kirchoffs voltage law). These basic laws work in DC and with SMALL adaptations work in AC as well, actually Ohms law in certain AC circuits works as it is.

I got the point, but not totally..

But i just want to know enough to make my own laser.

Can someone just tell me which basic things i need to know before making a laser?
I already know Amp, Current, and learning resistance right now..

I can't solve the 5th question here:

http://www.facstaff.bucknell.edu/mastascu/elessonshtml/EEIndex.html <--- Elements : Resistors and then scroll down
Can anyone help me?

if you cant answer that I suggest you go back adn read the formulae, and also get intouch with your SI UNITS.

Dont you learn this stuff at/in school or are you at that level now?