The Sky-Ray King Thrower Mod........ It's Finished! Beam shots are up

[ZT1 (ZT)]

Wow. For a moment, I thought the moon had chosen to rest awhile on that wall. It’s so round and bright

[Franz]

AMAZING mod, good work

[PyTech]

@Old-Lumens

I got the copper SinkPad and I reflowed the XM-L2 to the star and the star to the heat sink all at one time. I tinned the bottom and top sides of the star and fluxed the led contacts as well as the copper pins in the heat sink. Then I put it in a vise and heated from underneath with my torch. Once the led flowed into place, I hit the underside of the heat sink with a can of compressed air turned upside down, so it would cool the heat sink quickly. Seemed to work fine except for my big error. It works fine and does not affect anything really, but I will let you figure out the error. Someone will catch it.

Those cans don’t work too well upside down? Shot fluid everywhere?

[texaspyro]

@PyTech

Those cans don’t work too well upside down? Shot fluid everywhere?

That’s the idea. The fluid converts to a gas and that cools things down quickly… like down below –40 degrees. I use $3 cans of “canned air” instead of $12 cans of freeze spray for debugging electronics. They are the same chemical. Be careful, you can easily thermally shock and damage something. Also, never spray fluorocarbons into an open flame, the results can be highly toxic.

[Old-Lumens]

@PyTech

@Old-Lumens

I got the copper SinkPad and I reflowed the XM-L2 to the star and the star to the heat sink all at one time. I tinned the bottom and top sides of the star and fluxed the led contacts as well as the copper pins in the heat sink. Then I put it in a vise and heated from underneath with my torch. Once the led flowed into place, I hit the underside of the heat sink with a can of compressed air turned upside down, so it would cool the heat sink quickly. Seemed to work fine except for my big error. It works fine and does not affect anything really, but I will let you figure out the error. Someone will catch it.

Those cans don’t work too well upside down? Shot fluid everywhere?

They work excellent as the “fluid” (which I suspect is something like freon), comes out super cold, like liquid nitrogen, so it immediately turns into something like snow, but it’s cold enough to cool a heat sink off in a split second.

[borstar_micke]

Great work as always!

[Rufusbduck]

Your mods are always illuminating.