The trackball on the AG is significantly smaller than a logitech ball. I have used an AG for quite a few years and seldom have to clean the trackball.
However, if you use it with dirty fingers then you will need to clean it more often.
It is also very easy to clean. The ring which holds the ball in place will rotate out (using a paperclip) and the ball is removed from the top. This is the same method that my logitech trackball uses.
Yes, it does use rollers and are best cleaned with a toothpick and a Q-tip dipped in rubbing alcohol.
Ergonomically, it is less comfortable than a logitech trackball, but having the keyboard in your hands at all times more than makes up for that (IMHO).
Units from the next AlphaGrip production run will have an optical trackball
instead of the mechanical trackball, which did use rollers as you correctly
assumed. From your description of Logitech's trackball, it sounds like the AG's
new trackball is similar, in that it too has "three little shiny contact
points," but based on the sample units we've been testing over the last few
months, the AG trackball does not have to be cleaned as frequently as Logitech's
(though to my surprise it does require more frequent cleaning than the old
mechanical trackball - about twice a month).
The reason we had to replace the mechanical trackball with an optical one is
that too many of the mechanical trackballs failed quality control, resulting in
a 10-20% rejection rate. The optical trackball has fewer moving parts and so we
expect it will have a lower rate of defective units (hopefully much lower).
I believe the major difference between a standard trackball and the AlphaGrip's
trackball is that you use your right thumb to control the AlphaGrip trackball
and your left thumb for left click and right click. IMO, the AlphaGrip
trackball is very comfortable to use, especially because you can lean back and
rest your hands in your lap.
Mike
Hi All,
Sam
--
Hi Mike, Do you know when you're going to have the next shipment of Alphagrips? I'm very much looking forward to ordering one. :) James --- On Thu, 12/2/10, Mike Willner <mi...@alphagrip.com> wrote: |
|
|
|
We are hoping to get the next shipment by mid-February, but our manufacturer,
Sejin, has not guaranteed the delivery date. Here's a more detailed
explanation:
After a couple of months of testing two samples of the latest version of the
AlphaGrip, a.k.a., the iGrip Ergonomic Keyboard, the optical trackball on
one of the samples stopped working, so we had to send it back to Sejin
to analyze the problem. After reviewing the defective trackball, Sejin
said the problem was an isolated one and would not delay production. As a
precaution, however, they followed up by sending us two "pre-production"
units for testing.
Unfortunately, the right capital shift key on one of the units, though it
was functional, had a "mushy" feel to it. This was a problem we had identified
on about 10% of the units in the last production run and it should have
been resolved by now. We sent the unit back to Sejin for inspection and
they concluded that a modification to the tooling was required.
The modification is estimated to be completed by next week at which
point Sejin must send us two more pre-production samples for testing.
Hopefully they will be defect-free so we can give the go-ahead.
I'll notify this group when we receive our next shipment.
Mike
________________________________
From: James <genera...@yahoo.com>
To: alph...@googlegroups.com
Sent: Thu, December 2, 2010 11:00:45 PM
Hi Mike,
James
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----- Original Message ----
From: windexlight <winde...@gmail.com>
To: alphagrip <alph...@googlegroups.com>
Sam
alphagrip+...@googlegroups.com.