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Originally Posted by Type
So how does PPR affect the code when using a drive train? I've seen some that are rated for like 5k and others that top out at 360. Im assuming you would use one that hits 5k for a shooter, but would a 360 CPR (or PPR) be enough for a drive train to be accurate.
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On drive train, it depends on what you're doing. We use 250PPR and its still overkill. I think 1 pulse corresponds to 1mm of travel but that can change on if you are using the input or output to the gearbox.
For shooters, we've typically use 2PPR. When you've got a wheel spinning at a few thousand RPM, you don't need many counts per rev to get an accurate speed. A 5kPPR would amount to over 2 million pulses per second on some shooters we've used.