I've done some initial tests with a machine I've modified to be able to grab a mouse. The machine is very accurate, and should be able to reveal sensor inaccuracy to a great degree.
This first test is just some random mice I had lying around to see if I can detect sensor variations at all. There have been no attempt to tune the output at this point via software or firmware etc.
Strong circle drift is caused by human error, at least with sensors that aren't total crap. The circle drift here is weak and people are aware of it (e.g. the g900 tech marketing videos).
. Everything should be pretty flat, but I'll take that into consideration on the next tests, to make sure the mouse isn't ever so slightly tilting because the grabber lifts it.
from mouse-sensitivity.com
to clarify: what's important isn't the tilt of the mouse but the angle of the motion (i.e. whether the setup lifts the mouse slightly on one side)
i suspect that even 0.1mm makes a detectable difference for this.
maybe placing a soft pad below the hard pad could help
yea thats a good idea but you'd need the box to be secure against lateral movement but still allow for vertical sliding so that the mouse is always pressed on the pad
Strong circle drift is caused by human error, at least with sensors that aren't total crap. The circle drift here is weak and people are aware of it (e.g. the g900 tech marketing videos).
I know, it's just that some people in that thread had been keen to argue it's all human error, when Logitech has, as you say, addressed the issue multiple times. I still don't quite get what kind of timing issue Morier referred to that causes the drift, but it would be another neat measure for tracking performance.
But apparently, this setup is still not perfect, since the mice can be offset paralelly to the pad.
Sure as hell didn't help them notice the insane jitter from the crappy firmware.
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