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FrozenGate by Avery

Help Me Build My Next Laser!

Well I've seen many people with 100-300mW 638nm lasers that look awesome and are very happy with them. Although the calculator thing says that, I think in real life it won't be as dim as the website makes it seem. I understand that green lasers are the most visible to human eyes :)
 





Good luck with whatever you decide, Gun. PM me if you decide you want that diode. It's not going anywhere.
 
O they customs! I drought it would get stopped but there is a chance I guess. Its a little more powerful then what your looking for, this unit does 350mW. It would have to ship with not battery's or charger and you would have to get them separate but there not expensive.
 
I guess I've got a couple of decisions to make then! I think I might hold off on buying that one from you awillis as I think I want to do a build.

I was going to get a 650nm LPC826 Red Laser Diode in Aixiz Module for $19, I would link it but I don't want anyone steal it from meh! what do you think? I don't have any experience working with diodes so any tutorials/threads that would tell me how to handle and not kill the diode would be helpful. :)
 
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I think it's a good option. I was looking to get one of those myself. And the price seems quite good too....
 
Yes it's a very good price, do you know if he's only selling one or is there multiple? I've removed the link for now.
 
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I assume that you can get multiple lasers since I tried to add 10 in the shopping cart and had no problem.
 
I think you should go right ahead! :) I should of just got a JAD kit for my first build... :(
 
Oh okay, good :D

Yeah I think I'll hopefully order the diode, JAD Kit and glass lens this week.
 
You don't really need a glass lens for that power. That is 10 bucks you could spend on another diode :p A 3 element glass lens would give it a nicer "spot" though.
 
@Gun,
In my experience, most of the common 650nm diodes will not reach 300mW unless a high transmission lens is used (like the G-1 or G-2 lenses) or if you overdrive the diode.
If you are planning on using the LPC diode (815 or 826), 400-420mA and a 3-element lens will (almost) certainly get you less than 250mW.

If you want something just as bright, safer, and more unique, 635-638nm at 100mW will be about equal in brightness to 250mW 660nm.

DTR no longer sells the 110mW 638nm diode but if you can find one, they are AWESOME!
I don't bother with the high power multi-mode 638s because the beam is horrible.
 
Laik, Mohrenberg suggested that I bought a glass lens from Ebay for $5, because the plastic ones do melt eventually.

RA_pierce, the guy selling the diodes said he recommends driving them at 380mA and that he gets about 180-300mW. He said they can be pushed further but at your own risk. He doesn't state what lense he used.

I would much prefer a 638nm however I found they do tend to be a little bit more expensive, but I am willing to be a little more for a 638nm. Where would you recommend I buy a 638nm diode, around the 100mW mark? :)
 
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DTR used to stock the 100mW 638nm diodes but he doesn't anymore. He still stocks the 300mW diodes, they are 40 bucks. I can't wait until i get enough money to build my 638nm :D
 
That's a bit more than I was looking to spend but I may if there's no other options, thanks :).
 
THIS is what you should use for your diode. 2 dollars more than the LPC-826, but it comes in a COPPER module and it has much better specs. Also, will have slightly lower wavelength (650 vs 660) IIRC which will make for a more visible(slightly) beam.

THIS is the 3 element glass lens for red lasers. You can order it with the diode buy adding one to cart, exiting the new window and then adding the other to the cart. They will both be there.

THIS is the mohgasm JAD kit. For the powers you are at, you do not NEED any upgrades. However you can get them if you see fit. Either get the driver set to 200mA or 378mA. I have mine at 378mA and it has a beautiful beam and just enough burning capabilities that I can make my friends jealous when need be. I would recommend the Black Anodized Heatsink for this build you are doing as it will look very clean, expecially if you get the black focus adapter.

Total Price: 21+9+35 = 65 dollars for the build. Add in CR123 batteries and you are good. Do NOT drive that on one cell as it will be much weaker.


Some advice: I would recommend going with the 378mA current. It is not all that much more than if you went with 200mA, it will give you ~225mW as opposed to ~100mW. Have fun with the build, find ways to make it your own. At the end of the day do whatever you want to with your build. The above are just suggestions based on what I find I enjoy, your mileage may vary.

But I can guarantee that DTR's low divergence diode I linked will be a much cleaner dot and better beam than the LPC. The LPC has little wings through the dot, the DTR Diode does not.

Hope that helps,
Isaac
 
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Thanks for all the info and links Isaac! Now I guess I have to decide between 638nm and 650nm.
 
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