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Denvi / Candle

GRBL controller application with G-Code visualizer written in Qt.
GNU General Public License v3.0
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Candle does not always visualize loaded g-code #333

Open pedjas opened 4 years ago

pedjas commented 4 years ago

Candle 1.2.8b

Sometimes, it happens when I load g-code into Candle it does not visualize it. I could not find some pattern when this behaves. It happens with both generated g-code or manually written.

G-code is loaded, everything else works: it may be sent to machine, even processing is animated in visualization - cutting tool runs but on the empty screen.

Here is an example of code that is not visualized: stripes.ngc.txt

ondras12345 commented 4 years ago

Your gcode doesn's specify the Z coordinates.

You already have G92 X0 Y0 Z0 in your code, so you can just add G0 Z0 after the G90 line. The machine shouldn't move because the G92 command made the current point 0,0,0.

pedjas commented 4 years ago

Adding Z0 did the trick for this example (this code was used to test laser so setting Z was not needed). Thanks.

But this happens even with some complex G-code for milling with multiple passes, where Z is used. Next time it happen I will save g-code to show.

ondras12345 commented 4 years ago

But this happens even with some complex G-code for milling with multiple passes, where Z is used. Next time it happen I will save g-code to show.

I haven't encountered that yet. Are you sure the code contained absolute Z coordinates? It could have used the G91 incremental mode.