Date: Thu, 16 Feb 2012 15:33:29

Author: Bill Norwood

Subject: Re: Low Friction Carts Becoming "Frictiony" on Track ( was Demo Request )

Post:

--_000_EEDDFC52C7AF8644AC35ECAD5BFE54A96E00C58000EX07eceisrumd_
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

Many thanks, Erich, that will be most helpful, Bill

From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On Beh=
alf Of Erich Burton
Sent: Thursday, February 16, 2012 2:36 PM
To: tap-l@lists.ncsu.edu
Subject: Re: [tap-l] Low Friction Carts Becoming "Frictiony" on Track ( was=
Demo Request )

A jet of dry, compressed air directed at the bearings from underneath
while spinning the wheels seems to work well for me; most of the time
dust seems to be the problem.

Pasco recommends dusting, followed by application of silicone oil:

http://www.pasco.com/support/technical-support/technote/techIDlookup.cfm?Te=
chNoteID=3D584

If you use something with solvents, take care not to get any on the
plastic wheels, it will attack them.

Pasco does sell spare wheels/axles:

http://www.pasco.com/prodCatalog/ME/ME-6957_cart-replacement-axles-4-pack/



Bill Norwood > wrote:

We have used Pasco's low-friction, wheeled carts and fancarts for several y=
ears, and have found that most of them will roll straight, and with very lo=
w friction, across floors or tabletops.

But last semester we tried the carts on the long tracks designed for them a=
nd found that sometimes they just "did not want" to roll.

Actually these tracks had fallen into disuse more than a decade ago, and no=
w perhaps I am seeing a reason for that.

Will these carts, with precision realignment (however one does that) then r=
oll with very low friction on the long tracks?

I hope this helps.

-Erich

--
Erich Burton 3-2602 eburton@bu.edu
Boston University Physics Department

--_000_EEDDFC52C7AF8644AC35ECAD5BFE54A96E00C58000EX07eceisrumd_
Content-Type: text/html; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

Many than=
ks, Erich, that will be most helpful, Bill =
From:=
tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On Be=
half Of Erich BurtonSent: Thursday, February 16, 2012 2:36 P=
MTo: tap-l@lists.ncsu.eduSubject: Re: [tap-l] Low Fri=
ction Carts Becoming "Frictiony" on Track ( was Demo Request ) A jet of dry, compressed air directed at the bearings from und=
erneathwhile spinning the wheels seems to work well for me; most of the=
timedust seems to be the problem.Pasco recommends dusting, fol=
lowed by application of silicone oil:htt=
p://www.pasco.com/support/technical-support/technote/techIDlookup.cfm?TechN=
oteID=3D584If you use something with solvents, take care not to=
get any on theplastic wheels, it will attack them.Pasco does s=
ell spare wheels/axles:http://www.pasco.com/prodCatalog=
/ME/ME-6957_cart-replacement-axles-4-pack/Bill Norwood =
wrote:We have used Pasco's low-f=
riction, wheeled carts and fancarts for several years, and have found that =
most of them will roll straight, and with very low friction, across floors =
or tabletops.But last semester we tried the carts on the long track=
s designed for them and found that sometimes they just "did not want&q=
uot; to roll.Actually these tracks had fallen into disuse more than=
a decade ago, and now perhaps I am seeing a reason for that.Will t=
hese carts, with precision realignment (however one does that) then roll wi=
th very low friction on the long tracks?<=
p class=3DMsoNormal>I hope this helps.-Erich-- Eric=
h Burton 3-2602 eburton@bu.ed=
uBoston University Physics Department=

--_000_EEDDFC52C7AF8644AC35ECAD5BFE54A96E00C58000EX07eceisrumd_--

From tap-l-owner@lists.ncsu.edu Thu Feb 16 15:34:18 2012
Received: from psmtp.com ([74.125.149.123])

Back