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Author Topic: DPI/CPI for trackballs  (Read 7439 times)

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Offline smuvmoney

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DPI/CPI for trackballs
« on: Wed, 21 April 2010, 11:02:47 »
I was trying to find out the DPI or CPI for some of the newer trackballs out there.  However, I cannot seem to find that information readily available.  I know that certain ones like the CTS L-Trac allow DPI customability, but I was more curious about the ones from Logitech and Kensington, these in particular:

Logitech Trackman Marble (formerly Marble Mouse)
Logitech Trackman Wheel (wired or wireless)
Logitech Cordless Optical Trackman
Kensington Expert Mouse (7.0 gray/black)
Kensington Slimblade Trackball
Kensington Orbit Trackball with Scroll Ring

If anyone knows a good source for this info, please share :smile: .  Thanks.
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Offline smuvmoney

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DPI/CPI for trackballs
« Reply #1 on: Thu, 22 April 2010, 11:16:32 »
Quote from: ripster;174130
Try calling TrackballWorld (I kid you not, they do exist).


I'll shoot them an email this weekend.  It was more for curiosity than anything else that I was wondering.
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Offline ch_123

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DPI/CPI for trackballs
« Reply #2 on: Thu, 22 April 2010, 11:18:51 »
I'd say that they're about 800DPI or so. I know the CST is 400/800/1600 switchable.
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Offline ricercar

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DPI/CPI for trackballs
« Reply #3 on: Thu, 22 April 2010, 13:05:31 »


Priceless! My new avatar picture!
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Offline kishy

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DPI/CPI for trackballs
« Reply #4 on: Thu, 22 April 2010, 15:24:20 »
LMAO

Nice...
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Offline smuvmoney

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Actually, I tried that...
« Reply #5 on: Thu, 22 April 2010, 16:07:50 »
Quote from: ripster;174491
You can calculate it for yourself with a few simple spin tests  involving this magic number...
Show Image


I actually attempted to do that with the Expert Mouse before I wrote this post.  I used a FPS and circle/sphere calculator along with some craptacular reverse engineering.  I came up with ~800 DPI for the Expert Mouse under Mouseworks.  I have yet to try this using the Trackballworks beta, but the DPI does feel different.  I am not sure if this is intentional or not so I am loathe to do it again.  To be honest, I was hoping for an official source to confirm/refute my findings - hence the thread.  

That is a great image by the way. :smile: I believe I only used two decimals in my measurements.
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Offline ch_123

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DPI/CPI for trackballs
« Reply #6 on: Thu, 22 April 2010, 16:30:44 »
One time I was bored stupid in early secondary school maths and learned it off to something like 30-40 digits... God bless those carefree days...
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Offline itlnstln

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DPI/CPI for trackballs
« Reply #7 on: Fri, 23 April 2010, 07:20:22 »
Quote from: ch_123;174659
One time I was bored stupid in early secondary school maths and learned it off to something like 30-40 digits... God bless those carefree days...

You're a ****.
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Offline ch_123

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DPI/CPI for trackballs
« Reply #8 on: Fri, 23 April 2010, 07:33:00 »
Hell, even I know that!
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Offline itlnstln

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DPI/CPI for trackballs
« Reply #9 on: Fri, 23 April 2010, 07:43:30 »
Hey, I make no bones about it.  I'm proud of it, in fact.  I even put it as my title.  That said, all I know of pi is 3.14.  I have a pretty funny (Texas A&M) Aggie joke about pi, but it's pretty wordy, and I don't feel like typing it out right now.
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Offline itlnstln

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DPI/CPI for trackballs
« Reply #10 on: Fri, 23 April 2010, 09:20:17 »
Quote from: ripster;174856
 Of course neither can get a job these days so everybody stay in school.

This is the disappointing part.  Around my company, the less educated you are, the higher you go.  I have a BA (history), and I am over a couple of people with their Masters.  My boss has a BA from some podunk university. The other two directors on his level do not have degrees.  Their boss does not have a college degree, either.  Our owner is very well educated, however.
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Offline timofonic

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DPI/CPI for trackballs
« Reply #11 on: Wed, 02 June 2010, 19:28:11 »
Hello.

I'm interested on this topic,but...

Could you all please stop becoming so many offtopic? That stereotypical nerdy stuff is BORING!

I would like to know the DPI of Kensington SlimBlade Trackball, to see the (technical) advantages over the easily hackable
LaserTRAC (L-TRAC) 2545 Trackball that operates up to 1600dpi.
« Last Edit: Wed, 02 June 2010, 20:15:10 by timofonic »
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Offline ricercar

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DPI/CPI for trackballs
« Reply #12 on: Fri, 04 June 2010, 12:47:43 »
Quote from: timofonic;188996
Could you all please stop becoming so many offtopic?


Look, a squirrel!
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Offline ricercar

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DPI/CPI for trackballs
« Reply #13 on: Fri, 04 June 2010, 13:44:09 »
New Avatar time



Vagina squirrels prefer Cherry browns
« Last Edit: Fri, 04 June 2010, 13:47:05 by ricercar »
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