How to connect a Cole MAX driver negative to case?...

[Hiemal]

Hey all, I recently got one of those small Coleman Max flashlight hosts with a heatsink... (http://t3.gstatic.com/images?q=tbn:...gki63rJOhzXHDcGlusp7bSCMMl8bRDyuWX_geCda6Y4Ig)

I attempted to put it together today with a 6x blu ray laser, but near finishing, I noticed there wasn't a connection between the top head of the flashlight and the rest of the case.

However, there was a bit of exposed aluminum near the top, but since you can't solder to aluminum, how the hell do you connect them?

Thank you for your help...

 

[Sigurthr]

RHD found some aluminum solder on eBay recently, I hear it works great. Though, normally you would pinch a wire between the driver board and the case for the case feed or screw it to the pill, or sand off the anodizing to allow a continuous connection.

I'm going to be putting my single mode blue module into a C6 soon and will have to sort out the same problem... the module and the pill don't both fit, so I'll be scrapping the pill and using a big ole spring for the negative (case positive build). I'll have to sand off the anodizing at various points for the positive feed.

 

[lazeerer]

Sand down where the body of the host screws into the head. "THat top lip" Solder your Negative input to the case pin so now when you screw the 2 pieces together the heatsink will touch the part where you sanded down to make contact and then get the negative input running from the case pin to the driver.:beer:

Very simple.

 

[Jufran88]

You can use zinc solder and some zinc flux for soldering onto aluminum.

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