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| Potential for my trackball hack? |
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| SirPoonga:
no, putting a mouse upside down will reverse one of the axis. It will work well in mame if you switch the axis input in mame. But everything else will be backwards. I think left and right would be backwards (trying to imagine it in my head). |
| jerryjanis:
I just tried it out (sorta). I flipped my optical mouse up-side down and put my 2 1/4in. trackball on top of it (it didn't work very well holding the ball in my shaking hand but it seemed like it could work in a more solid environment). You are corect, SirP - left/right is backwards, but up/down is Ok. One thing I noticed is that it seemed abit over-sensitive. At 640x480, a quarter rotation of the trackball would send the mouse from top to bottom. My Wico trackball needs a full rotation for the mouse to travel that far. If you try to spin the trackball fast, you are more likely to run into problems with a more sensitive device. My trackball is probably twice as large as the one you are using, so that would probably help you... There's only 1 way to find out if it will really work! |
| Antiriad2097:
Not tried it out yet, but I picked up a cheap optical mouse recently. I've 2 weeks off work now, so I'll give it a go provided my other half's DIY plans don't consume all my time. It'll be interesting to see how successful it is, just for the record here if nothing else. |
| pointdablame:
I played with this idea for a little while too. It doesn't work. Or I should say, I wasn't able to get it to work..... |
| Antiriad2097:
One year later and an update. At this rate my cab will be retro before its even been built... Tried it (the trackball died again). Doesn't work. My guess is that the optical sensor just can't get enough variation in the surface of the shiny trackball. Throw in some scatter from the reflective quality and its worse. It might work I suppose if you use a patterned ball, but with the parts I have to hand its a dud idea. Movement is erratic and fairly useless as an accurate control method. At least now we all know. And I enjoyed the book in between times (well, you have to plug it, don't you). |
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