I got this error message when generating G-code for my butterflies.
What does it mean? What can I or should I do to fix it?


(I don't speak geek very fluently.) Attached files

 

I got the same error on one of my files. It was a fold line that caused my error. I changed it to a center cut to get around it.

If you find the same thing, we need to let Pete know.

 

Apparently it is a grouping that is causing the problem. Try exploding your parts and see if you still have a second grouping of the cut path under them.

I had to regroup my parts. Not sure how it got double grouped to begin with.

 

Thanks for the clues Flash, I'll check the skp file when I get home.

 

Well, this error is really starting to annoy me, is there any way to go back to the old Phlatscript?
It happens with everything once i group them up.
I can do without the V tabs seeing as i can't even cut anything now

 

I have some very sharp internal corners that seemed to be causing the problem. I changed to a 1/16" bit and raduised ALL the internals to 0.100" radius. The next time I generated the gcode, no problem.
So, why doesn't the program know how to deal with sharp corners? When I zoomed in on them (before changing to a radius) the cut-path was doing a "Y-Turn" in every corner - which could have never worked. It actually would have produced a negative-radius corner. Very weird.

 

What do you mean? How did you change the radius of ALL the internals? Explain. Is there an option in Sketchup or did you change your drawing?

I encountered the same problem but had to jump thru hoops to solve it. I noticed that it was how sketchup processed offsets and ended up marking my existing curves as cut paths without accounting for the 1/16" bit in order to get around it.

 

Ok, blew out all the phlatcodes again and set it for a 1/8th inch bit then redid all the phlatcodes.
It outputted everything fine this time, the 1/16 inch bit might be on the right track.

 

Flash
I agree, Sketchup has a horrible time with offsets.

Any two lines with an included angle of less than about 60 degrees will give you fits, and requires lots of editing to get around it.
The file I have included has quite a bit of work to get it to this point and it still won't give a good toolpath (offset) with out a lot of trimming and deleting of lines in the toolpath.

But the software is free so I guess we should expect some extra work.

Thanks
Glenn Attached files roadrunner.skp (423.7 KB)Â

 

A quick work around for something like this is to simply weld the outside lines and mark them as an outside cut path.

Most likely a 1/16" offset is not going to make any difference anyway.

I don't mind doing some editing, as you say, it is free software and given all that it does in combination with the great phlatscript coding, it is truely a bargain!