On Thu, 2004-03-25 at 20:29, Pigeon wrote: > Logitech do some rather neat optical trackballs, called "Marble", with > a speckledy ball to give the optical sensor something to work on. > > Unfortunately they are all very decidedly asymmetrical and > right-handed only. > > I have a Trust Ami Track trackball, which is sensibly designed: it is > bilaterally symmetrical and equally suitable for right- or left-handed > use. Unfortunately it uses mechanical pickup, with the attendant > disadvantage of picking up finger grease which causes it to stop > working. > > So I've whacked an optical sensor in it, and speckled the ball by hand > with a felt pen. This took ages, and sooner or later I'm afraid the > speckles are going to wear off. No doubt the Logitech speckled balls > are more durably marked, so it would be worth my while to get a > Logitech optical trackball just for the ball, as long as it's the > right size. > > If anyone on the list has one of the Logitech devices, could you > please measure the diameter of the ball and let me know? Please be as > accurate as you can. The Trust needs a 40mm diameter ball; the > tolerance is something around +/-0.5mm. > > TIA,
'ello, although i dont know the size of the logitech ball, i personally prefer the the kensington 'Turbo Mouse' which uses an ambidexterous design which i prefer, i use it both left and right handed without any problems, and the linux kernel recognizes it specifically... i personally have an older macintosh version which is 4-5 years old (it is a version 5.0) which i upgraded to from the 4.0 only because the 4.0 only has two buttons... but my 4.0 is about 10 years old and still works with no problem... i have used them exclusivly since '91 so i know they are very durable... here is a link to the list of models they have... http://www.kensington.com/html/1436.html i have the 8th one down... to give you an idea of the size of the ball, mine has a billiard ball in it (i dont care much for small track balls personally...) sloopy. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
