Sensorless X/Y homing and other Prusa MK3 features
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Why did Prusa not install a BLTouch?
I orderd one and hope it will work better than my Capacitive Sensor.
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Bltouch is a nice idea but it's not that accurate or repeatable. I suspect it wasn't good enough for Prusa.
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The inductive sensor is used to detect probe points in the bed. Since the beds are precisely manufactured and their position is known, this data can be used to adjust for slanted bed/skewed axis. With a Bltouch or a piezo you'll still be able to do mesh bed leveling (probably to much better precision with the piezo), but no MK2 specific black magic calibration.
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Bltouch is a nice idea but it's not that accurate or repeatable. I suspect it wasn't good enough for Prusa.
Sry i never heard something from a Sensor like this.
Does it use the preasure when the Nozzle touches the Bed or use it some sort of light to measure the Distance? -
Bltouch is an all in one probe and solenoid to deploy/stow it. https://m.aliexpress.com/search.htm?keywords=bltouch#/ Its small and light and easy to mount. Just not very accurate, accurate enough for a reasonable first layer on a cartesian machine, but isn't going to calibrate your large delta that accurately.
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Sry i quoted the Wrong Post.
I wanna know something about the Piezo.
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link to it is in Dj's signature
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What he said. There's a ton of info there.
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It's really top of line! I swapped a DC42 IR sensor for piezo and I'm not looking back. This thing is accurate and works on any surface I've tested it on without having to redo offset. Swapping nozzles and even from regular to volcano without having to redo Z offset is awesome. Not going back
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After tct were looking into streamlining it and maybe getting them made in sls nylon, but this will be a while.
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The ideal motors for stall detection would be high-inductance ones - which is just the opposite of what you need for high speed.
Maybe I should put an experimental stall detect feature in 1.20, with configurable stallguard thresholds and minimum speeds at which it is used.
Yup yup yup, all over this as needing to be a feature added!
