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



Good, cheap beam stop for 7W?

brendon7358

Active member
Joined
Jul 2, 2011
Messages
966
Points
43
Hello, I will most likely be getting a NUBM44 build soon and as I live in a dorm right now, I cannot accidentally burn the wall like I did with my old 3.5W 9mm laser. So what is a good, cheap beamstop that won't reflect too much to avoid me unintentionally damaging things? Thanks :)


On a side note, these will protect against 7W of 450nm and 650nm right?
 
Last edited:



Razako

Well-known member
Joined
Mar 17, 2006
Messages
4,493
Points
113
A brick painted with black spray paint.
 
  • Like
Reactions: GSS

GSS

Well-known member
Joined
Apr 28, 2015
Messages
5,061
Points
113
This what Razako said, cinder block, a 1 ft. x 1ft. bathroom ceramic tile "back side thats not glazed". All painted black. Probably flat black being better.
 
Last edited:

Antharak

Active member
Joined
Apr 24, 2013
Messages
549
Points
43
You can use grill paint from Home Depot or header paint from an auto parts store. Just be sure it's flat finish.
Ed
 

ElectricPlasma

Super Moderator
Staff member
Joined
Dec 11, 2015
Messages
1,634
Points
113
I use a black computer panel from an aged computer case, but anything heat resistant such as metal or cement with a coat of heat resistant black paint would work I suppose.
 

Lifetime17

Well-known member
LPF Site Supporter
Joined
Dec 15, 2014
Messages
6,006
Points
113
Hi,
And if you want to burn test the same as antharak said grill paint on a piece of pine board 4 or 6 inch x 1 inch should do

Rich:)
 

brendon7358

Active member
Joined
Jul 2, 2011
Messages
966
Points
43
Ok, I'll head to Lowe's (Closest Home Depot is 40+ miles away) this week and find a brick or tile and some grill paint and I'll let you know how it goes. This and this would work right? Thanks :)
 
Last edited:

Antharak

Active member
Joined
Apr 24, 2013
Messages
549
Points
43
The sheet metal is a no go, the paint will burn through and then you will get a mirror. Get a concrete block, that would be best.
Ed
 
Last edited:

RedCowboy

Well-known member
Joined
Jul 10, 2015
Messages
9,078
Points
113
Chunks of cinder block work just fine.


 
Last edited:

Gabe

Well-known member
Joined
Jan 10, 2015
Messages
1,181
Points
83
It's all been said yep, black ceramic, cinderblock, concrete, cats, basically anything starting with a c.
 

RB astro

Super Moderator
Staff member
Joined
Apr 6, 2014
Messages
2,542
Points
113
It's all been said yep, black ceramic, cinderblock, concrete, cats, basically anything starting with a c.
:crackup:Gabe !

Just make sure the cat is black and is under a ladder for good luck..... :D
 

brendon7358

Active member
Joined
Jul 2, 2011
Messages
966
Points
43
I went with this black Granite Tile



Haha, not really. I use the back side which isn't reflective.

I tested it out, and the laser does burn the granite at close range (1ft), the damage is shown by the red circle.


Mandatory Beamshot! :lasergun:
 
Last edited:

Gabe

Well-known member
Joined
Jan 10, 2015
Messages
1,181
Points
83
I went with this black Granite Tile



Haha, not really. I use the back side which isn't reflective.

I tested it out, and the laser does burn the granite at close range (1ft), the damage is shown by the red circle.


Mandatory Beamshot! :lasergun:
I'm having trouble seeing those photos, is it possible to host them somewhere else like imgur?
 

Gabe

Well-known member
Joined
Jan 10, 2015
Messages
1,181
Points
83
I see, nice! I just can't get over the power of that diode.
 




Top