| Topic: |
Science > Physics |
| User: |
"maverick88" |
| Date: |
09 Dec 2004 07:28:22 AM |
| Object: |
Plastic |
Hi all, I am looking for plastic with small drag coefficient (for
mouse pad)
(I'd rather know about more than one kind so that I'll have option of
selection if I don't find one)
Any help will be appreciated
Thanks
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
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| User: "maverick88" |
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| Title: Re: Plastic |
09 Dec 2004 04:28:26 PM |
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Uncle Alwrote:
maverick88 wrote:
Hi all, I am looking for plastic with small drag coefficient (for
mouse pad)
(I'd rather know about more than one kind so that I'll have option
of
selection if I don't find one)
Any help will be appreciated
Thanks
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
www.GroupSrv.com, Usenet's cloaca.
High drag coefficient is not needed for the balls because I am talking
about laser mice that majority of the world population have them.
So the small the coefficient is - the better ;)
You want a high drag coefficient for the pad to tightly couple to the
mouse ball, and a low drag coefficient for the mouse feet themselves.
The stuff cannot be soft or it will wear away. UHMW polyethylene
used
for artificial joints will do for the mouse feet. Icosahedral alloy
used in non-stick cookware is an interesting alternative.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf[/quote:5ca17a1634]
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
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| User: "maverick88" |
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| Title: re:Plastic |
09 Dec 2004 12:29:26 PM |
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Hey thanks for help :)
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
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| User: "Gregory L. Hansen" |
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| Title: Re: Plastic |
09 Dec 2004 07:22:45 PM |
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In article <41b852f6$1_1@Usenet.com>,
maverick88 <wma@bk-dot-ru.no-spam.invalid> wrote:
Hi all, I am looking for plastic with small drag coefficient (for
mouse pad)
(I'd rather know about more than one kind so that I'll have option of
selection if I don't find one)
Any help will be appreciated
Thanks
Texture seems to be an important factor. E.g. a woven fabric cover versus
a solid sheet.
--
"The preferred method of entering a building is to use a tank main gun
round, direct fire artillery round, or TOW, Dragon, or Hellfire missile to
clear the first room." -- THE RANGER HANDBOOK U.S. Army, 1992
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| User: "Uncle Al" |
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| Title: Re: Plastic |
09 Dec 2004 01:31:39 PM |
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maverick88 wrote:
Hi all, I am looking for plastic with small drag coefficient (for
mouse pad)
(I'd rather know about more than one kind so that I'll have option of
selection if I don't find one)
Any help will be appreciated
Thanks
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
www.GroupSrv.com, Usenet's cloaca.
You want a high drag coefficient for the pad to tightly couple to the
mouse ball, and a low drag coefficient for the mouse feet themselves.
The stuff cannot be soft or it will wear away. UHMW polyethylene used
for artificial joints will do for the mouse feet. Icosahedral alloy
used in non-stick cookware is an interesting alternative.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
.
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| User: "Bert Hickman" |
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| Title: Re: Plastic |
09 Dec 2004 10:53:59 AM |
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maverick88 wrote:
Hi all, I am looking for plastic with small drag coefficient (for
mouse pad)
(I'd rather know about more than one kind so that I'll have option of
selection if I don't find one)
Any help will be appreciated
Thanks
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
Here are some possibilities with low coefficients of friction:
PTFE (polytetraflouroethylene - Teflon) 0.04-0.25
PVDF (polyvinylidene fluoride) 0.14-0.17
PEEK (polyaryletheretherketone) 0.18
FEP (fluorinated Ethylene Propylene) 0.2
Also, polyethylene (PE) (LDPE, HDPE, or UHMW)) is often called "poor
man's Teflon" because it's so slippery. It's also much less expensive
than any of the fluoropolymers or engineering plastics above.
UHMW (ultrahigh molecular weight PE) 0.1 - 0.22
Google is your friend... see:
http://www.zeusinc.com/lubricity.asp
http://www.snapidle.com/uhmw_data.htm
http://www.tfx.com/reference/materials.htm
-- Bert --
--
---------------------------------------------------------------------
We specialize in UNIQUE items! Coins shrunk by huge magnetic fields,
Lichtenberg Figures ("Captured Lightning" in acrylic), & Out-of-Print
technical Books. Stoneridge Engineering - http://www.teslamania.com
---------------------------------------------------------------------
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| User: "Mr Cheese" |
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| Title: Re: Plastic |
09 Dec 2004 11:39:36 AM |
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"Bert Hickman" <bert.hickmandelete_this@aquila.net> wrote in message
news:Gq%td.633911$mD.363631@attbi_s02...
maverick88 wrote:
Hi all, I am looking for plastic with small drag coefficient (for
mouse pad)
(I'd rather know about more than one kind so that I'll have option of
selection if I don't find one)
Any help will be appreciated
Thanks
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
Here are some possibilities with low coefficients of friction:
PTFE (polytetraflouroethylene - Teflon) 0.04-0.25
PVDF (polyvinylidene fluoride) 0.14-0.17
PEEK (polyaryletheretherketone) 0.18
FEP (fluorinated Ethylene Propylene) 0.2
Also, polyethylene (PE) (LDPE, HDPE, or UHMW)) is often called "poor
man's Teflon" because it's so slippery. It's also much less expensive
than any of the fluoropolymers or engineering plastics above.
UHMW (ultrahigh molecular weight PE) 0.1 - 0.22
Google is your friend... see:
http://www.zeusinc.com/lubricity.asp
http://www.snapidle.com/uhmw_data.htm
http://www.tfx.com/reference/materials.htm
Your mouse pad must provide friction, as it must turn the ball inside the
mouse, these plastics won't work for a mouse pad. tooo slippery. On your
mouse, you can have strips of slippery plastic. But ball and pad must
interlock.
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| User: "Michael Mcneil" |
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| Title: Just |
09 Dec 2004 04:37:09 PM |
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"Mr Cheese" <nospam@nospam.com> wrote in message
news:31rgubF3e0p91U1@individual.net
What I was thinking:
Your mouse pad must provide friction, as it must turn the ball inside the
mouse, these plastics won't work for a mouse pad. tooo slippery. On your
mouse, you can have strips of slippery plastic. But ball and pad must
interlock.
So a few dabs of the petroleum effluent on the old placky rodent and
bobs your efficacy.
--
Posted via Mailgate.ORG Server - http://www.Mailgate.ORG
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| User: "Ian Stirling" |
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| Title: Re: Plastic |
09 Dec 2004 12:03:28 PM |
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Mr Cheese <nospam@nospam.com> wrote:
"Bert Hickman" <bert.hickmandelete_this@aquila.net> wrote in message
news:Gq%td.633911$mD.363631@attbi_s02...
maverick88 wrote:
Hi all, I am looking for plastic with small drag coefficient (for
mouse pad)
(I'd rather know about more than one kind so that I'll have option of
selection if I don't find one)
Any help will be appreciated
Thanks
*-----------------------*
Posted at:
www.GroupSrv.com
*-----------------------*
Here are some possibilities with low coefficients of friction:
PTFE (polytetraflouroethylene - Teflon) 0.04-0.25
PVDF (polyvinylidene fluoride) 0.14-0.17
PEEK (polyaryletheretherketone) 0.18
FEP (fluorinated Ethylene Propylene) 0.2
Also, polyethylene (PE) (LDPE, HDPE, or UHMW)) is often called "poor
man's Teflon" because it's so slippery. It's also much less expensive
than any of the fluoropolymers or engineering plastics above.
Your mouse pad must provide friction, as it must turn the ball inside the
mouse, these plastics won't work for a mouse pad. tooo slippery. On your
mouse, you can have strips of slippery plastic. But ball and pad must
interlock.
Only for male mice.
Some don't have balls.
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