twentysixtwo
Enlightened
Got a couple of TWOJ Stars to play with, here are a couple of ideas I have for heat sinks - either temporary or permanent.
1) Silver Half Dollar! Comparitively cheap (I already have it and it's not worth much) and silver is the best heat conductor there is.
2) Copper pipe end cap. The cap for 1" pipe is just about the right size for the star, I'm thinking about maybe putting the star in the bottom of the cap, in which case the optics / reflector would be nicely protected by the sides of the cap.
3) Spot Welding Tip. Imagine a 1"x1/2" copper cylider. 1/2" diameter, with the top 1/4" tapering to 1/4" diameter. Of course, if you had to buy these, I don't think they'd be very cheap. I happen to have one sitting around...
If I grind down the tip to perhaps 3/8", an emitter should fit very nicely. It'll sit on at least 1/2" solid copper before it becomes a hollow copper tube (for cooling water on spot welders)
I saw some brass plugs for plumbing, but they were quite a bit more than the copper pipe caps. Also, brass isn't nearly as good a conductor as copper.
Any other ideas for cheap, easy to find alternative heat sinks?
1) Silver Half Dollar! Comparitively cheap (I already have it and it's not worth much) and silver is the best heat conductor there is.
2) Copper pipe end cap. The cap for 1" pipe is just about the right size for the star, I'm thinking about maybe putting the star in the bottom of the cap, in which case the optics / reflector would be nicely protected by the sides of the cap.
3) Spot Welding Tip. Imagine a 1"x1/2" copper cylider. 1/2" diameter, with the top 1/4" tapering to 1/4" diameter. Of course, if you had to buy these, I don't think they'd be very cheap. I happen to have one sitting around...
If I grind down the tip to perhaps 3/8", an emitter should fit very nicely. It'll sit on at least 1/2" solid copper before it becomes a hollow copper tube (for cooling water on spot welders)
I saw some brass plugs for plumbing, but they were quite a bit more than the copper pipe caps. Also, brass isn't nearly as good a conductor as copper.
Any other ideas for cheap, easy to find alternative heat sinks?