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Knockoff Saber 1.6W small review.

Richie89

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Since it failed the magnet test, it is most likely aluminum, which is a good thing. Aluminum has a higher thermal conductivity than steel. My Thor is made from Aluminum and is very heavy in the hand. It feels very solid too.
I always thought SS wasn’t magnetic, so my saber wannabe is probably a thick AL? Any other way to test and find out for sure?

I might buy the least expensive 1.6w and put in my own diode/module and driver, it is a good looking host and I like that it's threaded for the 3XBE.

I like the performance of a fresh NDB7875 @ 2.4a with a G7 and 3XBE, Ignites a paper lunch bag at 20 feet, granted the 7875 is new old stock as they are not in production.
That would actually be pretty bad ass! If you do end up doing this I would love to see how that turns out and possibly try it myself :D
 



paul1598419

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If a magnet won't stick to it, it isn't SS. That means it can only be made from a few alloys. Since the most likely is Aluminum, it is fair to believe it is made out of that. Brass would be more expensive and most high copper alloys are soft. Aluminum is fairly soft in comparison to steel, but you wouldn't want to do a scratch test on your host just to confirm it is aluminum.
 

BowtieGuy

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Most of the SS projects that I've worked with over the years have been non-magnetic, although both forms are definitely available.
 

RedCowboy

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When I used to scrap a lot of metal most stainless steel would not stick to a magnet, but now a days some will.

I looked and found this:

Stainless steels are iron-based alloys primarily known for their generally excellent corrosion resistance, which is largely due to the steel's chromium concentration. There are several different types of stainless steels. The two main types are austenitic and ferritic, each of which exhibits a different atomic arrangement. Due to this difference, ferritic stainless steels are generally magnetic while austenitic stainless steels usually are not.
 
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paul1598419

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It is true that there are alloys of iron that are not magnetic. It has a lot to due with the concentrations of Cr, C, Mn and other alloy materials. The steel used for hosts have been mostly magnetic in my experience. I know that there are surgical metals that contain Fe that are not magnetic. I guess it all depends on the type of alloy involved.
 

RedCowboy

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Looking at the site the specs say it's stainless steel with a copper heat sink.

From the site:


Product spec:

Housing Stainless Steel 250*35mm with 40mm copper heatsink

Battery Two 18650 li-ion batteries(NOT include), 69-70mm, negative casing
Duty cycle Unlimited
Warranty 6 month
 

paul1598419

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Is that for Sanwu's site or the site where he got this laser from? I know the Thor I have from laserpointerstore is aluminum. It is anodized black for a harder finish, but it is aluminum.
 
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BowtieGuy

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Here is the link to the "Laser Pointer Store" Saber, and under the 'product spec' section, it states the housing is stainless steel with a 40mm copper heatsink.
 

paul1598419

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Hmm. If that is true, that sounds like a pretty good deal for that laser. The copper heat sink would be 35mm in diameter and 40mm long. For a 1.6 watt laser that is plenty of heat sinking. I wonder about the unlimited duty cycle as steel is a poor conductor of heat and the copper has to release heat to the air or it will only continue to build up.
 

deadshadow

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Re: Saber 1.6W small review.

Well darn aluminum would be better for heat dissipation, I wish Alaskans hosts would come in, I really want to do a 7A75 with a 4X C-lens pair and 3XBE, I have scored several NOS ndb7a75's and a couple of ndg7475's on ebay, it seems everyone spent their tax refunds or they are paying taxes now and they are all broke because NEW NDG7475's were auctioning for 70 dollars and change, but now they have stopped putting them on the auction block.

Funny even my local Chinese restaurant says things always get slow at tax time, I suspect the refund people spent out and us self employed are all paying.
couple ndg7475's?like how many? :crackup: i did got 2 nugm01 diodes to make a build and 1 for spare diode,i will join the 1w green soon :)
 

Richie89

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Hmm. If that is true, that sounds like a pretty good deal for that laser. The copper heat sink would be 35mm in diameter and 40mm long. For a 1.6 watt laser that is plenty of heat sinking. I wonder about the unlimited duty cycle as steel is a poor conductor of heat and the copper has to release heat to the air or it will only continue to build up.
the only reason its confusing to me is because I actually work in the bakery industry and we have a lot of SS and our magnets don't stick to them either :thinking: im actually willing to do the scratch test to see. Im with you because truthfully im a little skeptical about the unlimited Duty Cycle,
 

RedCowboy

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If I scroll to the top of this page, center of the page, 5th thing down is a yellow text for LASER POINTER STORE, page 3 has the host in question.

Just click this > LASER POINTER STORE
 
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GSS

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Years ago I had machined a few rounds 416 SS
I remember it as not being to pure and dull in the stock form and could be delivered with some oxidation , but machined a bit easier. It was magnetic.
I'm guessing it could polish up a bit.
Was so long ago and had to google it.
Stainless Steel - 416 Stainless Steel
 
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Richie89

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If I scroll to the top of this page, center of the page, 5th thing down is a yellow text for LASER POINTER STORE, page 3 has the host in question.

Just click this > LASER POINTER STORE
i really like mine, i just hope it holds up and last a few years. It feels like its somewhat good quality aside from the spring not being rolled in, whoever copyed this thing from Sanwu did a relatively good job. however be cautious if you buy one because the site says case Neg but its actually case Pos.
 

hoo7h

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If a magnet won't stick to it, it isn't SS. That means it can only be made from a few alloys. Since the most likely is Aluminum, it is fair to believe it is made out of that. Brass would be more expensive and most high copper alloys are soft. Aluminum is fairly soft in comparison to steel, but you wouldn't want to do a scratch test on your host just to confirm it is aluminum.
How does brass compare to copper?
 




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