[Boatanchors] Fixing cracks in clear plastic?

[Glenn Little WB4UIV]

If the plastic were properly countersunk, there would be no stress. But 
this requires planning and some precision. Basically you would countersink 
the hole so that the screw head bottoms out against the backing plate at 
the same time as the plastic is held against the panel. This would produce 
no stress on the plastic unless it is severely jarred.

Possibly you could retap the holes for the next size screw and 
recountersink the plastic to minimize the cracks and prevent further cracking.

73
Glenn
WB4UIV
At 04:47 PM 08/23/05, Philip Atchley wrote:
>Thank you,
>
>When my wallet is a bit "fatter" I may try putting out a want for a 
>replacement panel from a "parts" unit, IF there are any out there that 
>aren't cracked.  The two screw holes behind the knobs are countersunk, so 
>just tightening the screws down too much could certainly cause stress 
>cracks!  At this point I almost think that any attempts to repair 'might' 
>make the cracks more noticeable, and the set is otherwise too nice to mess 
>up (even if it was a 'cheap' radio when new).
>
>73 de Phil  KO6BB
>
>J. Forster wrote:
>>Hi. Thanks. I chatted with a friend and pilot after the post. He was not 
>>really
>>optimistic about the chances for success. I'd try a plastics house.
>>Take care,
>>-J
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