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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!ftpbox!motsrd!white!sapphire.rtsg.mot.com!mica!derosa
- From: derosa@rtsg.mot.com (John DeRosa)
- Subject: PowerBook Track Ball Rubies??
- Message-ID: <derosa.724610047@mica>
- Sender: news@rtsg.mot.com
- Nntp-Posting-Host: mica
- Reply-To: motcid!derosa@uunet.uu.net
- Organization: Motorola Inc., Cellular Infrastructure Group
- Date: Thu, 17 Dec 1992 16:34:07 GMT
- Lines: 21
-
- My trackball got a little sticky so I
- openned it up to clean it out. The problem
- was some gummy stuff on the small blue soft
- cylinders that the ball rubs against and
- translates the x-y motion.
-
- Anyway, I noticed three small white blocks
- with red dots on them in the track ball
- housing. It appears that the track ball
- rests on these small red points. The question
- is what are they made of so that they are
- slick enought to allow the ball to rotate
- and yet not so hard that they scratch the
- ball and yet hard enought that they don't
- wear away in a few months of use?
-
- Thanks, John
- --
- = Enjoy! John DeRosa, Motorola, Inc, ESMR Development =
- = thanks derosa@ssd.comm.mot.com =
- = a 10^6 N1111@applelink.apple.com =
-