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ArcticMyst Security by Avery

520nm 100mW Spikey

djQUAN

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Here's my latest build. (It's Christmas vacation - no work! so I have a lot of free time :) )

I started with a block of aluminum to make a heatsink.
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I don't have a lathe so this is how I make round stuff on a mill. I use the dividing attachment and rotate it by hand while gradually letting the mill eat deeper into the material.
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Hole for the 12mm module done, now to make it round.
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Completed heatsink
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Now, we machine another heatsink. This one will attach from the front and will bear most of the heat dissipating duties.
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Once the inside is drilled to accept the 12mm module, we drill and tap the setscrew hole
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Here's the host. It's a single AA cheapie flashlight. We drill a hole for another setscrew to hold the inner heatsink and 12mm module in place.
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back part of the module glued into the heatsink
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Here's the 12mm module from DTR with built in microboost.
I didn't want to cut the silicone wire so I desoldered it and used the shorter offcuts that I have. :) The long ones will be used in future projects
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Back part in place, put in the plastic spacer and connect the contact board.
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Put in an AW 14500, test if it's still working then adjust focus to infinity. This won't be used for burning so it's a fixed focus build.
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Here's why it's called Spikey, I don't think you'd want to keep this in your pocket. :) An unfortunate incident mangled the front heatsink. The drill caught the heatsink and it spun from the clamp causing that damaged anodizing at the front. :yabbem:
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The heatsink damage makes it look ugly so I painted it flat black
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Then the paint on the heatsink started rubbing off and bare aluminum started showing up again which is ugly so I decided to try another route....

Since any form of repainting or anodizing will rub or scratch off at the sharp edges, why not fully remove it instead? I can also round off the sharp corners so it won't shred my pocket :p

Mounted the heatsink to a bolt and attached it to the drill. While spinning, I sanded the fin edges to get that bare aluminum.
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This is what it looks like now. Love it or hate it, it's here to stay :p
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It's still too early for beamshots so this will have to do for now :) (along with my red build)
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Night time beam shots!!!

Solo beam shot
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Christmas colors with the red rebuild
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Comparison pic with the 77mW lab laser which peaks at over 80mW.
The difference is more noticeable in the pic compared to real life. Maybe my eye is broken :p
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djQUAN

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[reserved for pics]
 

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Nice job!! I'm a fan of the "fan" style outer heat sinks like that! Sucks about the little "incident," but it's still really cool!
 

djQUAN

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Thanks! This build looks like it has an unlimited duty cycle. :D Ran it for a few minutes and the front heatsink is barely warm. Couldn't test for a longer time since the 14500 is almost empty. Got another one already in the charger.
 

Zeebit

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Good job on these DIYs but I have to say that it looks kinda funny.
 

djQUAN

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I just used what I had on hand. It looks different but doesn't look funny to me :D

I couldn't stand seeing the damage on the heatsink so I tried painting it flat black.

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Love the build and machining! very creative! keep the heat sink!! I want to see more creative hosts!
 

djQUAN

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Thanks. Now that it's night time...

Beam shots!!!

Solo beam shot
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Christmas colors with the red rebuild
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Comparison pic with the 77mW lab laser which peaks at over 80mW.
The difference is more noticeable in the pic compared to real life. Maybe my eye is broken :p
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Edit: heatsinking is pretty good! I left it on for maybe 10 minutes while taking pics. The laser is just warm. Once I turned it off, it was cold in under a minute.
 

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djQUAN

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I guess my eye isn't broken after all. :) After playing around with my 520 for a while, I fired up the 532 labby alone and noticed that it looked more yellow. Playing with the two side by side, I can now notice the difference.
 

BowtieGuy

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Nice job dj, good, innovative use of the mill for doing the lathe work. (Where there's a will, there's a way).
I kind of like the finned look; looks much better with the paint touch-up.
It's nice when your duty cycle outlasts your batteries.

:gj: +1
 

BowtieGuy

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@Zeebit - Exactly. Thanks for the "fix", I like it better your way! :beer:
 




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