[comp.sys.mac] Summary to Track Ball inquire

mdh@linus.UUCP (Mike Houle) (09/07/88)

  As a compilation to the request for Track Ball info for the Mac.
I have gotten only a couple of results, but these are the summaries.....

From: harvard!uwvax!speedy.cs.wisc.edu!engber (Mike Engber)

There a a product called the Arcade Adaptor (by Nuvo Labs) that lets atari
joystics work on a mac+. If their trackballs are the same in terms of their
output then I don't see any reason why it wouldn't work.

The adaptor came with a nice PacMan game and the package cost me $30. The
adapter is a tiny thing (1.5"x1"x.25" approx) and just attaches to the end
of the joy stick plug and then you plug it into the mouse port.

I think their phone is 805-544-5766.

I don't know how much trackballs go for, but I suspect that this is the
cheapest route.


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From: goldman@encore.UUCP (Steve Goldman)

  < *****   This information has recently been sent across the net ***>

  I've connected an Atari trackball to my Mac, it requires a very
simple cable change. I never really liked using it because the button
was to hard to use. If you want I can post/email the details.

Steve Goldman

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From: ll-xn!ames!coherent!dplatt (Dave Platt)

There are three brands of trackball available for the Mac;  I believe
that all three are available in ADB (Mac SE / Mac II) and non-ADB
(older) models.  There was a review and comparison of all three in one
of the big Mac magazines (I believe it was MacUser) within the past
couple of months.

Summary:

Kensington Turbo Mouse.  The original;  recently released in a
substantially updated form.  The magazine review described the old
model (rectangular case and switches), but showed a picture of the new
model (squarer case, triangular switches in symmetric positions).  The
old switches had a somewhat mushy feel;  I suspect that they've been
revised in the new model.  New model apparently uses optical sensors,
with no moving parts aside from the trackball itself; old model uses
wheel encoders.  Original model lists for about $130; new model for
about $170.  New model has just started shipping and may be in short
supply.  New model contains auto-accelerator logic;  if you move the
ball quickly, the cursor speed increases.  One-year warranty.

Abaton ProPoint.  Large ball, which can be lifted out of the socket
without removing the cover;  convenient for cleaning, but may not be as
suitable for video-game use because the ball might pop out during rapid
spinning.  $160 list, I think.  This model was the most expensive of
the ones reviewed (the new Kensington wasn't available then) and was
top-rated;  "well engineered".  Optical sensors.  Lifetime warranty.

Asher Turbo Trackball.  Small ball (about 1/2 the size of the others);
some people seem to prefer the larger ball, some the smaller.  Patented
encoder mechanism (made by Honeywell) using rubber-coated shafts on
which the ball rotates.  Least expensive ($99 list), available for
under $70 from mail-order dealers;  if you buy it directly from the
factory they'll offer a 30-day money-back guarantee.  Some early models
had problems with cursor "sticking";  this was corrected by the rubber-
coated encoder shafts, and defective units will be replaced by the
manufacturer.  Lifetime warranty.

If you have a Mac SE or II, you can use a trackball as well as a mouse
by daisy-chaining them on the ADB.  I don't know if this is possible on
a Mac Plus or older machine.

I have no details as to how one would go about adapting an Atari
trackball to work with the Mac.  I suspect that it would require a
substantial amount of work, as Mac keyboards and mice contain
microprocessors that participate in a rather complex dialog with the
Mac's processors.
-- 
Dave Platt                                             VOICE: (415) 493-8805
  USNAIL: Coherent Thought Inc.  3350 West Bayshore #205  Palo Alto CA 94303
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   To those who just needed to know...

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  Again, thank you to all who replied..  You were very helpfull

-- 
  Mike  Houle                         |
                                      | If I really had an opinion, and you 
  ! UUCP ->   decvax!linus!mdh        | believed it.  Then it's your fault..
  ! ARPA ->   mdh%linus@mitre-bedford |             not mine.