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| Spinner: Encoder wheel spoke size? |
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| NoBonus:
How do I know how many spokes to put on a 4 3/4 inch encoder wheel? I do not want it THAT slow, but not so fast the mouse will not pick it up. Any ideas? I am using the encoder wheel printer, but can find no documentation nor the author's website. NoBonus |
| Lilwolf:
Oscar is probably the best to answer this... but I thought slow was best...because you can always speed it up without loose. But you cant slow down a too fast spinner without loosing 'resolution' I have always used premade ones and I bought some off of Oscar (they are worth it! MUCH better then what I could do... and was cheaper then I could make it (time included)) |
| RandyT:
--- Quote from: Lilwolf on April 13, 2004, 08:00:00 am --- but I thought slow was best...because you can always speed it up without loose. But you cant slow down a too fast spinner without loosing 'resolution' --- End quote --- Actually it's just the opposite. You want it to be as fast as possible, without overpowering the electronics as to avoid the backspin problem. You can always downsample a lot more accurately than you can upsample. Compare it to re-sizing a digital image. Which resulting image looks better, a 1024x768 image converted to 150x120 (downsample) or a 150x120 image converted to 1024x768 (upsample)? The blocky image resulting from upsampling relates very closely to the coarse or "blocky" movement you will get when attempting to boost the speed of a "slow" encoder wheel. RandyT |
| bigmoe:
--- Quote from: RandyT on April 13, 2004, 11:06:28 am --- --- Quote from: Lilwolf on April 13, 2004, 08:00:00 am --- but I thought slow was best...because you can always speed it up without loose. But you cant slow down a too fast spinner without loosing 'resolution' --- End quote --- Actually it's just the opposite. You want it to be as fast as possible, without overpowering the electronics as to avoid the backspin problem. You can always downsample a lot more accurately than you can upsample. Compare it to re-sizing a digital image. Which resulting image looks better, a 1024x768 image converted to 150x120 (downsample) or a 150x120 image converted to 1024x768 (upsample)? The blocky image resulting from upsampling relates very closely to the coarse or "blocky" movement you will get when attempting to boost the speed of a "slow" encoder wheel. RandyT --- End quote --- Sorry for my density here...but this means you want a large wheel with lots of spokes, right? |
| RandyT:
--- Quote from: bigmoe on April 13, 2004, 11:26:57 am --- Sorry for my density here...but this means you want a large wheel with lots of spokes, right? --- End quote --- Not necessarily. A large wheel with 30 apertures (spokes) may be just as poor as a small wheel with 16. It's the density that's important. Larger diameters give you the advantage of passing more apertures past the optics with a smaller range of motion at the knob. But you can get the same effect on a small wheel with a higher aperture count. It's all relative. RandyT |
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