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Author Topic: problem with stick font engraving - residual line  (Read 3984 times)
joel.r1
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« on: July 21, 2013, 09:15:29 am »

Hi Folks,

I'm facing a strange issue in CB when trying to use engrave mode with stick fonts.
In a nutshell, engraving leave a couple of unwanted lines in between characters, just like if CB forget to raise the tool in between these letters.
I foudn a way to bypass by using NC Corrector and correct GCode manually, but it really sucks for long texts Undecided
As a picture worth much more than a description, I attached CB, NC and picture file.
Is that me or what ?

Cheers. Joel

* Test fonts.cb (3.45 KB - downloaded 29 times.)
* test fonts.nc (48.18 KB - downloaded 24 times.)

* Bug Stick fonts.jpg (62.57 KB, 1325x540 - viewed 80 times.)
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lloydsp
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« Reply #1 on: July 21, 2013, 11:57:31 am »

That's not CB's fault.

Reduce your 'max crossover distance' in the engraving MOp.

You've got it set too far.  The max crossover distance is used to save time lifting the tool, when shapes are going to intersect anyway.  You've got it set so CB thinks they intersect.

LLoyd
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joel.r1
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« Reply #2 on: July 21, 2013, 15:04:05 pm »

Thanks LLoyd, that's it.
I'm using CB for now years but never noticed so far this 'max crossover' importance. Well done.
Joel
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Bob La Londe
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« Reply #3 on: July 21, 2013, 23:58:17 pm »

I found for certain types of 3D milling I got cavity damage if I didn't reduce max crossover to less than step over to force the cutter to lift up also.  Its usually no issue for waterline, but can be an issue for horizontal or vertical in mixed milling direction jobs. 



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