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FAP 800 - I give up

Hemlock_Mike

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How do you "pop the top" on an FAP 800 Can?
I'm about ready to dump it on a stove burner.:yabbmad:
HMike
 



RedCowboy

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You can take a hammer and a screwdriver and make a gash in the corner then pry it up, it's sealed on.

This is what's inside.
SANY0108_zpsfiqgyf4x.jpg



This is Alaskans pic of his running at low power, pretty cool huh?
Untitled.jpg


The top pic is mine but this open unit is Alaskans upload also.
4f5500d5-9168-4d7a-bebf-166baae5918f.jpg


There are 19 emitters fiber coupled and arranged into a circle, pretty darn well too.
 
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Hemlock_Mike

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RC -- Thanks -- It looks soldered and I wanted to drop it out.
I may use your method with a Dremmel cutter tool on a corner.
HMike .
I'm working with Chris on this !!!
 
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RedCowboy

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A dremel will get junk inside, just knock a slot in the top near a corner or midway down either side and pry against the rim, it will pop the bond. Near the connectors is sturdy, stay away from the fibers at the output end.
 
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Alaskan

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I had one where the top wasn't bonded very well and just peeled it off with my fingers, maybe yours is sealed much better, or perhaps someone already opened the one I have before I got it. The inside is grooved to where the top fits tightly into it, you can see the lip in that photo RCB posted titled "this is what's inside".
 
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crazyspaz

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I thought they were hermetically sealed, meaning getting inside is more than likely going to be a real bastard. Have you checked Sam's laser FAQ to see if he says anything on taking them apart?
 

DashApple

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I think they are just laser welded shut , if you file a corner down the lid will peel off with some effort
 

Alaskan

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If they are soldered by bet is it's a very small amount, maybe try a small jewelers file around the edges to remove it.
 

RedCowboy

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These things come in a massive brass box with a tec. There was a plug for thermal sensor and tec but I stripped it all out. These were made to work all day long.
SANY0572_zpsaivmtnh3.jpg

SANY0575_zpssr272h9k.jpg

I just knocked a slot in the top with a screwdriver and popped it open, a bit of packing tape and it still closes.

SANY0570_zpsqzs01v7x.jpg


SANY0571_zpsadowcgla.jpg

It still works. This one is a fap800-12 12w

I have some 40w but am going to get better glasses, the ones I have are eagle pair but they say 800-2000 so I don't think they are much good for 808nm, well they technically cover it but I'm not comfortable because od+5 would be the center of those numbers, so always go with safety first everyone, if you're not 100% sure your safe then error on the side of caution.
 
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Alaskan

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I have four of those in the big brass box with TEC, tested but never used. Probably ought to off load some of them to put into orher projects. One qustion I sm hoping you might know, how high in temperature can I operate one of the non-TEC cooled FAP's?
 

RedCowboy

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I don't know, I could look up the spec sheet numbers, but I wouldn't be afraid to get one up to 120 F, but I would let it cool at about that just to be safe.
 

Alaskan

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The specs I saw show to keep it at 20 C., but that seems low to me, perhaps that is the recommended temp. for use as a commercial CNC controlled laser. If I can push it to 120 F., that will work for me, I don't see a way of easily keeping the thing at 20 C/70 F using the size of passive heat sink I want to use.
 

Hemlock_Mike

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The specs I have show an operating range of -20 to 30 Deg C.
I'd imagine that the cooler, the longer life.
HMike
 

Alaskan

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Ouch, +86 F. isn't that warm, will need a lot of heat sink to keep a high power one that low. Thanks!
 




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