[Elecraft] KPA100 side panel stripped screw threads

Mon Jul 29 23:40:00 2002

Well, so much for the Heli-Coil idea....
I wonder if there would be enough room to do a little machine work and fit a
threaded insert of some kind? Perhaps drill a hole in the channel and expoxy in
a piece of threaded stuff? If electrical conductivity is not important, you
could fill the channel with JB Weld and then drill and tap a hole at the proper
location. Use a nylon screw to make it easy on the epoxy....
Or...Take the sink to a welding shop and have them heli-arc the channel, file
the bead flush, then drill and tap....

I'm out of ideas for the night....

73, es GL!
John WB9OFG

Lyle Johnson wrote:

> > Most of the helicoils I have seen take a larger piece of aluminum than the
> > posts in the K2...
>
> The problem is not a stripped hole.  The problem is that this is a long slot
> (runs the entire length of the heatsink) and the screw only bites into two
> small areas of it.  I doubt a heli-coil will work, since they are
> effectively a spring that you "tighten", insert into a hole, then allow it
> to "unwind" slightly and grip the hole.
>
> 73,
>
> Lyle KK7P
>
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