Check McMaster-Carr. They sell PTFE filled Delrin in small quantities. Even plain Delrin without PTFE is pretty slick and would likely work. I doubt your garage windows are Delrin as I've never seen it in clear, only black and white. Most likely they're polycarbonate.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ We are like tenant farmers chopping down the fence around our house for fuel when we should be using Nature's inexhaustible sources of energy -- sun, wind and tide. ... I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that. -Thomas Edison, inventor (1847-1931) >________________________________ > From: Gene Heskett <[email protected]> >To: [email protected] >Sent: Monday, August 27, 2012 5:31 AM >Subject: Re: [Emc-users] moglice, another note > >On Monday 27 August 2012 06:09:04 cogoman did opine: > >> On 08/26/2012 07:29 PM, jeremy youngs wrote: >> > I am thinking about lining my ways with this product any >> > >> > thoughts? >> >> Tormach has a nice whitepaper about the design of their PCNC1100 that >> has me salivating to get one for myself. In it they have this quote: >> >> "There is a problem with it, however. PTFE is subject to a phenomenon >> known as cold flow." >> >> Go to this link to find out about this, and other stuff that may help >> you avoid a mistake in the future. >> >> >> http://www.tormach.com/engineering_pcnc1100.html >> >> >> I was surprised to read that early machines had brass strips over >> hardwood for the ways! > >So the ways should be delrin. I _think_ that is what I made my garage >windows from, and while its very tough stuff to cut, needing fresh from a >drill doctor drill bits and new carbide saw blades, it does cold flow! > >Supposedly capable of stopping (or more likely, throwing it straight back >at the shooter) a 22LR bullet, it hasn't been tested that I know of. I >made frames to fit the opening between the studs, about 7/8" thick, gave >them 3 coats of Helmsman Spar Varnish, and then laid a bead of si calking >compound near the inside edge, laid a sheet of this stuff on the caulk >after drilling holes in the edges at about 2" intervals, screwed it down >with 3/4" #6 pan head screws in each hole, then turned it over and laid >another sheet on the other side for a thermopane like construction. With >6" walls full of cocoon, and about a foot of it in the attic, my IR >thermometer can find them when its 0F outside, but a single 1500 watt, $20 >heater will hold that garage at about 65F. One of the two has now been >replaced with an AC, an 8k btu that has held it to 74F for 2 summers now >unless the door is open for too long. > >When I took one window out to put in the AC I was curious and loosened one >of the screws. The underside of the head has printed into that "delrin" a >good 10 thou in 3 years. That is however, a very concentrated load and I >doubt that would ever be matched in psi applied to a machine way loading. > >Cheers, Gene >-- >"There are four boxes to be used in defense of liberty: >soap, ballot, jury, and ammo. Please use in that order." >-Ed Howdershelt (Author) >My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! ><Skyhook> Where is 'bavaria' proper? I thought it was austria. > -- Seen on #Linux > >------------------------------------------------------------------------------ >Live Security Virtual Conference >Exclusive live event will cover all the ways today's security and >threat landscape has changed and how IT managers can respond. Discussions >will include endpoint security, mobile security and the latest in malware >threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ >_______________________________________________ >Emc-users mailing list >[email protected] >https://lists.sourceforge.net/lists/listinfo/emc-users > > > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
