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Thread: Auto leveling
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07-28-2014, 03:30 PM #1
Second that.
The other thing you can do is use a Z probe design that has the button (or tip of the lever) is directly in line below the servo shaft. This way, the error is the cosine of the absolute servo arm position error, which is pretty much nil in this situation. If it isn't in line below the pivot, the error can be significant.
I think the reason the servo twitches is because the Arduino isn't able to schedule the interrupts for the servo pulses reliably. As load on the MCU changes, it has a hard time maintaining the pulse width, exactly. This is particularly the case when the mechanics are moving. Marlin (correctly) prioritizes the stepper motors at the expense of servo precision.
Please explain to me how to...
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