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Old 02-06-2009, 12:01 AM #1
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Default Heatsink Fitting (A Cause for Concern?)

This is an MXDL aluminum heatsink. As you can see, I cannot fit the head of the Aixiz module in all the way. At this point, the head is basically "jammed in", with no more room for insertion. Should I be concerned about this? Will significantly impact the efficiency of the heatsinking?
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Old 02-06-2009, 12:29 AM #2
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Default Re: Heatsink Fitting (A Cause for Concern?)

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Originally Posted by REVENGE
This is an MXDL aluminum heatsink. *As you can see, I cannot fit the head of the Aixiz module in all the way. *At this point, the head is basically "jammed in", with no more room for insertion. *Should I be concerned about this? Will significantly impact the efficiency of the heatsinking?

Sometimes the "head" of the module is a bit larger than the back of the module. Sometimes the spot where the set screw hole breaks into the center will "bulge" out a bit. Also, not all modules are the same diameter. These are NOT held to machinist tolerances.

Hammer the module out and sand out the hole very slightly. I would pay particular attention to where the set screw comes out.

Peace,
dave
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Old 02-06-2009, 02:16 AM #3
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Default Re: Heatsink Fitting (A Cause for Concern?)

Good advice, thanks dave.
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Old 02-06-2009, 04:01 PM #4
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Default Re: Heatsink Fitting (A Cause for Concern?)

I have measured dozens of the Aixiz modules, the vast majority of them taper out in diameter from both ends to the join, before you file the hole out try turning the module round to see if the very front end will fit.

If it does fit, take a file to the module where it screws together.
If it doesn't fit do what Dave said.

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