Hi guys, i wanted to build a 1.2W 445nm laser that would have a high duty cycle, so i built this, with forced air cooling and a custom mount. I'm also using a die cast metal box, but to add even more cooling, the Aixiz is firmly fastened to the aluminium mount, which is screwed to the case, using thermal compound as well. Ive used 2 18650's in series and a geareb LM317 driver circuit , the 317 itself is mounted directly to the metal case for heatsinking. Ive put a charger socket in and built a custom charger. On the input of the charger socket ive added filter components just to be sure. Anyway see the pics let me know what u think.
The start of the aluminium mount
The aluminium mount cut to approximate size
The host
The mount and aluminium spacer before being offered up
Auminium mount installed & fastened with screws & HS compound
Front view
On/off switch & charger socket installed
Battery & driver circuit installed & cabled up
Fan installed
Final wiring
Fired up & calibrated (fan running)
Finished long duty cycle laser with an auto bulb for size reference, 3 different angles.
And thats it! ive added some rubber feet and the unit is undergoing tests for battery longevity and thermal stability. The fan drawes cool air across the back of the LD and blows it out of the vent on the RHS , i plan to add more heatsink fins on the inside of the case to further add efficiency to the cooling process.
The start of the aluminium mount
The aluminium mount cut to approximate size
The host
The mount and aluminium spacer before being offered up
Auminium mount installed & fastened with screws & HS compound
Front view
On/off switch & charger socket installed
Battery & driver circuit installed & cabled up
Fan installed
Final wiring
Fired up & calibrated (fan running)
Finished long duty cycle laser with an auto bulb for size reference, 3 different angles.
And thats it! ive added some rubber feet and the unit is undergoing tests for battery longevity and thermal stability. The fan drawes cool air across the back of the LD and blows it out of the vent on the RHS , i plan to add more heatsink fins on the inside of the case to further add efficiency to the cooling process.
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