Attaching Heatsinks to Hoods

[Enigma]

I know what I'm going to do.

I'm going to use Automotive JB Weld, bar stock aluminum, and screws.



If you look above and below the heatsink in the photo, you'll see holes for a total of six screws: two top left, one top right, two bottom left, and one bottom right.

I'm going to attach four pieces of bar stock aluminum to the heat sink using JB Weld. I'm going to drill holes in the bar stock that align with the screw holes. Then I'm going to use screws to mount it to the holes.

I really don't want to drill the heatsink, as that will affect the placement of additional LEDs in the future (and I'm not so good with a drill).

I'm waiting for more stuff from Martin, so the LEDs aren't done yet. I wonder how many orders it takes to get everything one requires? I keep finding more things that I need/forgot. I'm sure three will be the charm.

Will any hardware store carry the bar stock? What is it normally used for (so I know what department to find it in)?

Edit: in tearing the hood apart I sure learned one thing . . . JBJ's quality control and manufacturing standards are abysmal!

[mike31154]

I would not trust JB weld. Drill the heatsink. Not even sure I'd trust the plastic screw inserts long term. Don't know how much your heatsink with LEDs weighs, but the extra security of a few good quality scews through the hood & secured with nuts would be my choice. Last thing you need is to come home to your LEDs with heatsink submerged in the display. Paint the protruding hardware black & it will hardly be noticed.

[Enigma]

Thanks, Mike.

I checked with a buddy who is a journeyman auto body technician. He's confident that the JB Weld should hold no problem.

The heatsink isn't very heavy. So, I'm going to try out my plan as it is. In the event of a failure, I'll put screws through the lid. If I need to do that, I'm going to make another modification to the lid as well (cut a hole in it for a 120mm cooling fan). And, in the event of a failure, I'll be sure to document it online: so no one else attempts it.