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gnea / grbl

An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino
https://github.com/gnea/grbl/wiki
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Pause waiting for limit sensor during job #373

Closed AAKOTb closed 6 years ago

AAKOTb commented 6 years ago

Hello. I would like to add functionality to the library GRBL I design cnc embroidery machine now. To work with the embroidery machine, it is necessary to stop the program until the needle of the sewing machine rises. Is it possible to implement the function of stopping the code in the library, until the information is obtained from sensor the needle of the sewing machine? As a needle position sensor of the sewing machine, I would like to use one of the limit sensors. So if our code looks like this: N10G01X0.000Y0.000 N11G01X2.622Y0.744 N12G01X2.622Y0.744 N13G01X2.657Y0.709 N14G01X2.622Y0.673 N15G01X2.657Y0.638 N16G01X2.622Y0.602 N17G01X2.657Y0.567 N18G01X2.622Y0.531 N19G01X2.693Y0.602 N20G01X2.728Y0.567 N21G01X2.764Y0.602

That machine will perform the first line N10G01X0.000Y0.000 and wait for information from the needle position sensor. After triggering the sensor, proceed to the second line N11G01X2.622Y0.744 and so on.

cheton commented 6 years ago

This should be controlled from the G-code sender. You can modify simple_stream.py to fit your needs.

AAKOTb commented 6 years ago

And what about the functions of the M66? I found information about this function here https://www.shapeoko.com/wiki/index.php/G-Code M66 (M66: (EMC2) Input control) This is exactly what I need. I can put the function M66 P11 L1 Q100000 after each line in the g-code and connect to my pin 11 my needle position sensor. But is this realized in GRBL?

patgadget commented 6 years ago

Can a delay work for you? G4

patgadget commented 6 years ago

Or you could use the Probing G38.2 method also