My first build!

[roberttran]

I finally decided to build my first laser. Here are the specs:

PHR-803T
Aixis housing
FlexDrive set to 150mA
Cree Silver Ultrafire body
Dark Horse heatsink
Dark Horse apeture cap

I have a pair of OEM laser systems safety glasses on the way. I'm going to be keeping the indoor use to a minimal til I get them.

 

[ReaperZ]

mind if i ask why u decided to run at 150mA ?

good work ill be starting my first blu-ray laser build soon, gonna make two .. one at 130mA on an 803t diode, and one at higher (undecided) on a 4x diode

 

[pianoman2011]

Very professional! I like the sleekness and the all metallic silver body.

 

[roberttran]

I ran 150mA because I've read that 120mA is safe and I wanted to push it a bit.

I know that lasers run off of current and not voltage, so does this mean voltage doesn't matter at all? I haven't tried yet, but I should be able to burn with this laser right? The battery is about 3.7v

Also, Any tips on getting the beam to focus more? I think the dot is still pretty big and I want it to be a smaller dot.

 

[laserfreak3d]

humz 150 mA is pushing it

wel voltage does mather the diodes needs atleast 5 volts with 100 -130 mA to run at full power.
but the voltage deliverd to the diode wil drop automaticly when setting the current lower.

 

[roberttran]

Does that mean running at 150mA with only 3.7v results in a weak beam? What if I bumped the voltage up to 5 to 5.5?

 

[laserfreak3d]

Does that mean running at 150mA with only 3.7v results in a weak beam? What if I bumped the voltage up to 5 to 5.5?

no the flexdrive is a dc to dc converter so it can step up the voltage to  5 volts even if its just running on 3.7 volts