Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Turret Lab Mount diy

millirad

Well-known member
Joined
Apr 28, 2009
Messages
2,417
Points
63
This is my labby in the process of being built. Next step is to insert an aixiz module into the center of the 2.25" diameter by 1.5" heat sink. The heat sink rotates up and down, similar to a turret or gimbal. I'm expecting to get 1.5W reliably from this build, with the very large heat sink.

 



aXit

New member
Joined
Sep 15, 2009
Messages
206
Points
0
445nm build, I assume....

Can I just say that you're kind of messing with the purpose of a labby here.

Labbies lasing only parallel to an optic bench is important for safety, as beams stay can't be thrown up from the bench. I'm not sure your purpose here, but just be careful.
 

millirad

Well-known member
Joined
Apr 28, 2009
Messages
2,417
Points
63
Thank you for your safety concerns, which are valid for 1.5W 445nm. My design uses two large stainless set screws on either side of the mount axis. A 3/16" allen wrench tightens the heat sink into which ever position is desired. I call it a labby because it will have an AC/DC power supply( DDL/ATX computer). It isn't a labby in the strictest sense of the definition. I may use two DDL supplies in parallel to allow for cooler LM317 operation.
 

aXit

New member
Joined
Sep 15, 2009
Messages
206
Points
0
Instead of two in parallel, buy a LM317K, which is the same device, but in a TO-3 package, they handle heat a lot better than TO-220.
 

millirad

Well-known member
Joined
Apr 28, 2009
Messages
2,417
Points
63
Yeah, I'm going to have to agree. LM317T may not be up to the task. I'll look up your suggestion.
.....................Looks like I'll be going dual LM317K because they max at 1.5 amps. I'll be more comfortable with each regulator running without working too hard.
 
Last edited:

millirad

Well-known member
Joined
Apr 28, 2009
Messages
2,417
Points
63
Well maybe just an lm338k instead, with a good heat sink on the regulator.
 




Top