Chris,
Delrin was invented around WWII, so yes, nothing new. Just wanted to tell
people that they should know it's easier to machine than Nylon, so if that
does make a difference for them...
Now, don't tell me you consider replacing Nylon with aluminum?
Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France
"Chris Johnston" <chr...@ozdocs.net.au>
Envoyé par : krnet-boun...@mylist.net
30/07/2006 11:11
Veuillez répondre à KRnet
Remis le : 30/07/2006 11:12
Pour : "KRnet" <kr...@mylist.net>
cc : (ccc : Serge VIDAL/DNSA/SAGEM)
Objet : Re: Réf. : Re: KR> Delrin versus Nylon
It does seem pretty common, RS Components seem to carry it here, ie the
electronics people, but seems pretty expensive, it machines well and gives
excellent threads, seems to have a useful melting point, machining
tolerances quoted seem to range from a few thousandths of an inch to half
a
millimetre, and one site stated it may need "stress relieving " after
machining. A 500mm x 330mm sheet, 15 mm thick is around $200 to $300
dollars
here, seems to be used succesfully for plastic gears. Your initial reports
seemed to suggest some you beaut space age material solving all home
aeroplanes builders problems, but seems as though the stuff has been
around
for donkey's years. There does not seem to be any great cost advantage
over
Aluminium, thats here locally anyway, ( Australia ).
Chris Johnston
North Richmond
NSW Australia
----- Original Message -----
From: "Serge VIDAL" <serge.vi...@sagem.com>
To: "KRnet" <kr...@mylist.net>
Sent: Friday, July 28, 2006 10:38 PM
Subject: Réf. : Re: KR> Delrin versus Nylon
Delrin is old stuff, and pretty common. I think Aircraft Spruce carries
it, but rods only, not sheets. Cost-wise, it's about 1.5 times more
expensive than Nylon. I have no idea of its density, but it feels about
the same than Nylon.
Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France
"Chris Johnston" <chr...@ozdocs.net.au>
Envoyé par : krnet-boun...@mylist.net
28/07/2006 12:16
Veuillez répondre à KRnet
Remis le : 28/07/2006 12:17
Pour : "KRnet" <kr...@mylist.net>
cc : (ccc : Serge VIDAL/DNSA/SAGEM)
Objet : Re: KR> Delrin versus Nylon
Can you tell us some more about this material, what type of plastic,
density, where do you get it and what cost compared to other plastics.
Chris Johnston
North Richmond
NSW Australia.
----- Original Message -----
From: "Serge VIDAL" <serge.vi...@sagem.com>
To: "KRnet" <kr...@mylist.net>
Sent: Friday, July 28, 2006 7:33 PM
Subject: KR> Delrin versus Nylon
Oh, and by the way, the shop that sold the sheet to me said that it can be
glued, too. Haven't tried it yet.
----- Réacheminé par Serge VIDAL/DNSA/SAGEM le 28/07/2006 11:32 -----
Serge VIDAL
28/07/2006 11:23
Pour : KRnet <kr...@mylist.net>
cc :
Objet : Delrin versus Nylon
I just machined my first Delrin part, and I can tell you Delrin is an
absolute pleasure to work with, especially compared with plain Nylon! It
does not melt easily, and can be sanded very easily, up to a glaze.
Another nice thing is it can be found in black, which looks better than
the yellowish Nylon. If you have to make Nylon blocks, like rudder pedal
mounts, for instance, you should consider Delrin instead. It has the same
mechanical properties.
I think I will find many applications for this thing, because I simply
love it!
Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, france
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