Don't mix apples and oranges...the mishap was polycarbonate...not plexyglass. Polycarbonate is also used for birdproof windscreens but is sandwiched between layers of acrylic to protect it from the elements...i've seen the super slo-mo test videos...not pretty.
https://sites.google.com/site/mykr2stretch/ On Mar 10, 2013 10:13 AM, "Larry&Sallie Flesner" <flesner at frontier.com> wrote: > At 09:37 AM 3/10/2013, you wrote: > >> Polycarbonate has some really good characteristics and some really bad >> ones. It can take a whole lot of energy and not fail...but it can also >> break just under static stress when it comes in contact with certain >> chemicals. >> > > ++++++++++++++++++++++++++++++**+++++++++++++++++++++++++++ > > heating Plexiglass and forming it over a mold would relieve it of all > static stress in its new shape. Be careful when drilling the mounting > holes. It might be better to melt the holes with a small soldering iron. > Slightly oversized would be good with the hold down screws not too tight > to allow a slight bit of expansion / contraction. Both my flat wrapped > lenses have performed well for 500 hours now. > > Larry Flesner > > > > > ______________________________**_________________ > Search the KRnet Archives at > http://tugantek.com/**archmailv2-kr/search<http://tugantek.com/archmailv2-kr/search> > . > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see > http://list.krnet.org/mailman/**listinfo/krnet_list.krnet.org<http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org>to > change options >
