[19810] in Hotline Meeting
shades in 1-115 need attention ...
daemon@ATHENA.MIT.EDU (rdshydur@MIT.EDU)
Mon Nov 22 08:42:21 1993
From: rdshydur@MIT.EDU
To: hotline@MIT.EDU
Cc: rdshydur@MIT.EDU
Date: Mon, 22 Nov 93 08:41:59 EST
i put a note on the switch which controls the electronic shades
in 1-115 advising they not be raised or lowered until repaired.
the left-side shade bar hangs in it's track, causing a mis-roll-up.
whomever raises the shades during regular sessions during the week
might be advised to leave them be (normally down); it takes
two people a lot of careful work to jog the shades down so they
stay in their tracks.
nb: my humble advice is to make the shade bars out of righteous steel
AND to provide roller bearings on each end of each track so as to
ensure that gravity helps with unrolling and seating.
whomever designed (well, that part's too late, they're a commercial
product someone sold to mit after-all) them certainly didn't do
much testing before hand, especially as the shade material itself
apparently "softens-up" and loses any kind of dimensional stability
after some use, and probably just after "aging" (i.e., stiffness
is insufficient to push itself down the tracks with existing aluminum
shade bar along lower edge; hence above mentioned steel would
simply be better material for the bar).
- r
.
