MASSO seems to hang

chucktilbury

chucktilbury
When I run this gcode, MASSO seems to hang at around the 1200 line mark. I can't see exactly which line it is, but what appears to be happening is that the A axis decrements very slowly. By very slowly I mean that it changes about every 45 seconds or so and goes down by about 0.001" . No tool motion is produced that I can detect. It seems to run fine up to that point.

This code was generated using QCAD/CAM and a post processor that I wrote. Then it was run through gcode-ripper to wrap it around a cylinder for engraving on tubing with the Y axis reflected to angular motion on A. Logo1.nc is the output of the QCAD and logo1_wrap.nc is the output of the output of the wrapper.

I have not really fiddled with the settings yet. I would like to see if anyone sees anything stupid with the gcode. Logo1.nc works just fine on a flat surface.
 

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  • logo1.nc
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  • logo1_wrap.nc
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masso-support

MASSO Support
Staff member
Thanks Chuck,

I can confirm there is a bug with the rotary axis that is being looked into which is as you describe. The axis stalls intermittently when rotating though I hadn't observed the slow rotation you mention. In testing if you press the cycle start the machining should continue.

The bug is logged and will be looked at ASAP.

Sorry for the inconvenience and thanks.

Cheers

Peter
 

masso-support

MASSO Support
Staff member
Hi Charles,

@chucktilbury I have some good news.

The issue you are experiencing is not as I originally thought, due to a software bug but is due to incorrectly written GCode. I mistook the "about line 1200" to mean it was random occurring at different lines which fits the description of the known issue i mentioned in the post above.

I ran your code this afternoon and found that Masso almost stopped and started moving at Glacial speed as you described. I had a closer look at the Gcode and found you have set a feed rate of 0.01 degrees per minute and you are asking to move 54.507 degrees which will take a mere 3 days, 18 hours, 51 minutes to complete.

You might like to increase the feed rate a little on this line G1 X 0.7569 A-34.928 F 0.01 and it will resolve this issue for you.

You may encounter the other issue I mention above while machining but pressing the cycle start will resume the operation should you encounter it.

Hope this helps

Cheers

Peter
 
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