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Schematic

Schematic

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Small Chip

Small Chip

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Optics Design

Optics Design

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Optics Board

Optics Board

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Aligned...sort of

Aligned...sort of

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Prototype

Prototype

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Pile O Parts

Pile O Parts

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Solder Mask

Solder Mask

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Solder Prep

Solder Prep

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Control Board

Control Board

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Ready to Go

Ready to Go

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Test Firing

Test Firing

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Beam Shot

Beam Shot

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Charging

Charging

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brianpe

Battery Powered Lab Laser V2

A refinement of my dual NUBM44 benchtop laser.
What....NO COMMENTS !!!! WTF ??????????????? This is beautiful !!!! That is my FIRST comment !!!

So.....An order of magnitude more advanced compared to my Purple pHaze build....but...in the same neighborhood !!

I must study the schematic....but....such detail to permissive logic....WOW !!!,,,,,SO clean.....Nice lines....Optics are over the top !!!

FINALLY......SOMETHING .....I am going to copy( Steal ) the design !!!!

I have been looking for a " Three Stage switch "....Mini in size....BUT....with a sequence of ;

" All Power Off====> Power On to the system====> Laser On. All I can find are these
big-honk'in switches !!! ( As the switch used on the Purple pHaze )......but nothing small !!!.

There may be a latching switch that does this ??? Dunno....But....just a small mini toggle would do !!!

Anyway......Thanx for sharing !!! A very impressive build indeed !!!!!!!

CDBEAM
 
Last edited:
Thanks CDBEAM -- very kind!

Your three way switch I think would be pretty easy to do with a very small Microcontroller like a ATiny85 (8 pins) and a few other parts. You could then use any simple switch that was momentary on. I think this could be made pretty small -- small enough to fit in the tail cap of a handheld. The mosfet I have switching this laser on is about .25" square and can handle 100 amps. Hard to find any small switch that can do even 10 amps.

I need a similar circuit for a new LPM I'm working on, so if you'd like to go this route I'm game to help out.
 

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