I'm developing a concept printer that burns images onto wood using a magnifying glass on an xy plotter. One of my anticipated challenges is an inconsistent print quality as a result of changing lighting conditions (e.g., atmosphere, clouds).
My plan is to modify my Gcode on-the-fly, (yes, while printing) based on the feedback from photosensors in order to maintain a consistent burn. Modifying my feedrate to accommodate changes in lighting conditions seems like the simplest approach.
What I can't find is how to modify Gcode AFTER a print has begun.
ideas?
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