Re: Repairing HP 41C screw posts Message #8 Posted by Randy on 25 Sept 2011, 8:19 p.m., in response to message #7 by db (martinez, ca.)
Quote:
I got great results by slipping a spring over the split post to keep it together and usable. This has the added advantage of being able to slip the coil connector (and spring) off in the future. The glue and wire-wrap method works fine though.
While the wire-wrap method works, a card-reader o-ring makes a great clamp while the solvent cures.
That said, I really don't understand all the angst over cracked posts as longer screws (3/8") fix 95% of the issues with lower posts on the 41. We beat this to death, IIRC, back in 2003/4. A cracked post is no big deal if the 1/4" screw is discarded and replaced with 3/8". HP did this as a production change in about 1983 and on all 41's that were received for service.
A post that has sheared off can usually be repaired with little drama if all the pieces are there. Styrene plastic welding solvent puts it back together, leave overnight to cure and a 3/8" screw completes the job.
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