上位机和下位机一般采用 USB/网口 交互, 也有采用并口和PCI插槽的形式.
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GCode Sender 软件
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https://github.com/svenhb/GRBL-Plotter
https://github.com/winder/Universal-G-Code-Sender
SourceRabbit GCode Sender https://www.sourcerabbit.com/Downloads/
https://github.com/openpnp/openpnp
https://github.com/td0g/PCB_Gcode_Toolkit/tree/master/src
https://github.com/norpchen/ProcessGCode
https://github.com/Strooom/GRBL-Post-Processor
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gcode web 生成器
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http://cncwebtools.com/Apps/Hole_Drilling_GCode_Generator/index.html
https://cnc.js.org/
https://laserweb.yurl.ch/
https://ncviewer.com/
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gcode 知识
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https://diymachining.com/g-code-example/
https://www.autodesk.com.cn/industry/manufacturing/resources/manufacturing-engineer/g-code
http://www.busnc.com/prog/jichu/GMCode.htm
http://mdl.phvs.tn.edu.tw/wp/jamou/wp-content/uploads/2013/05/cnc_9.pdf
https://www.instructables.com/id/How-to-write-G-code-basics/
https://www.autodesk.com/industry/manufacturing/resources/manufacturing-engineer/g-code#
https://www.edingcnc.com/wiki/index.php?cat=3_input-the-rs274ngc-language
https://www.cnc.com/programming/g-code/
https://camotics.org/gcode.html
https://machmotion.com/blog/gcode-the-stuff-that-dreams-are-made-of
https://machmotion.com/blog/g-code-examples
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dxf 专 gcode
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https://wiki.opensourceecology.org/wiki/DXF_to_G-code_Conversion_Tutorial