[ROVERNET - UK] P6B Sticking Handbrake

JOHN HALL J.HALL11 at COMCAST.NET
Tue Nov 23 00:29:06 GMT 2004


What I meant was that a hole in metal would enlarge when cooled. At JPL we
enclosed electronic devices in 1/4" AL chassis. Had to have sealed terminals
for external connections. We drilled holes in the chassis. Packed in dry
ice, then inserted the terminals in the holes. When the chassis warmed up
the holes contracted and made a very tight seal.





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