Good, cheap beam stop for 7W?

[brendon7358]

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?

 

[Razako]

A brick painted with black spray paint.

 

[Deleted member 46822]

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.

 

[Antharak]

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]

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]

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]

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

 

[Antharak]

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

 

[RedCowboy]

Chunks of cinder block work just fine.

 

[Gabe]

It's all been said yep, black ceramic, cinderblock, concrete, cats, basically anything starting with a c.

 

[RB astro]

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.....

 

[Gabe]

:crackup:Gabe !

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

Even better, a cherry picker! More Cs won't hurt.

 

[brendon7358]

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:

 

[Gabe]

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?

 

[brendon7358]

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

Fixed :yh:

 

[Gabe]

I see, nice! I just can't get over the power of that diode.