Tool path won't generate for 2D design... really stuck.

[omamed]

I've created a 2D design intended to be cut using a plasma cutter.  I've started the design from scratch three times now, and when I got to cut the 2D profile, a section of the drawing just will not process.  I get the following notice:

Feature flags: setup-sheet-viewer

Debug: Initialization elapsed time: 0 ms

Debug: Writing ironjob to /var/folders/67/cy4px8fx70s4mszy_7_lsch80000gn/T/Neutron/Fusion360CAM/1/operation3.ironjob

Debug: Writing jobfile to /var/folders/67/cy4px8fx70s4mszy_7_lsch80000gn/T/Neutron/Fusion360CAM/1/operation3.hsm-job

Debug: Using CAM kernel from: /Users/Mamed/Library/Application Support/Autodesk/webdeploy/production/cdedd4b05efae2d277df7be3d315d4ccce03a01d/Autodesk Fusion 360.app/Contents/Libraries/Applications/CAM360/camkernel

Warning: One or more passes were discarded due to linking constraints.

Debug: Autodesk dcamcomponents 1.95.0 pm12672

Autodesk CAM Kernel 3.27.2 (a5be7baa) STABLE a5be7baa53fc5f4d6083bae464035d2fda5f14c6 2021/07/13 06:00

Warning: One or more passes were discarded due to linking constraints.

Debug: Total processing time: 4692 ms

Debug: Total elapsed time: 5512 ms

Generation completed with 1 warning(s) in 5.5s.

The section of the design is large enough to have a lead-in cut (other parts of the drawing are smaller and no problems there) and it's always the same part of the design that won't create a tool path.  
The Design:
 


The tool path generated:

Could someone lead me to what might be going on here?  Thank you!

[engineguy]

@omamed 

Have you tried creating a "Start Point" on one of the right hand points that are not being toolpathed so it is not trying to leadin somewhere that is restricting the leadin. One other thing can sometimes help is the angle of the leadin, it usually defaults to 90 degrees, try a different angle, maybe 60 degrees ???

Can you upload the file? It can often be helpful to anyone trying to diagnose the issues.

Go to:-

File > Export > Select f3d format > Save to a location on your computer > Then attach to your reply.

Note: In order to make an attachment you need to click in the "Reply to this Topic" box and type your reply there, the attachments function will then become available.

[omamed]

I'll try the "start point" idea.  I learned of the 60 degree tip and it solved issues for me in the past.  Not this time. I've uploaded the file as you suggested.  Really appreciate the time you've taken to assist! 

[engineguy]

@omamed 

The problem seems to be in your original Sketch, see the image below, I can get the toolpath to generate as long as that last line is not included.

So, you need to clean up your Sketch somehow in order to get the lines to connect correctly 🙂

Run the simulation in the attached file in order to see better what is happening 🙂

Hope it is of some help to you 🙂

[omamed]

Thanks for finding this.  It's like that line is on a different layer or plane.  I've tried to fix it without luck, so will start the sketch from scratch and see how it goes.  Again, thanks for your time helping me try to solve this puzzle!  

[engineguy · Accepted solution]

@omamed 

I had a go at repairing your file but could not get it to work with a Left Compensation.

I have come up with what I think is a "workaround" that might get the job done for you for now.

I think it is about the Laser diameter but it should still work as all the other small corners in the design seem to be OK 😞 😞

Looks like a "bug" to me so hopefully someone from Autodesk will jump in and run with this one, meantime, file is attached for you 🙂 🙂

[seth.madore]

I've opened up CAM-31400 to investigate this issue. As for now, it appears that disabling lead-in/out is the only workaround. I realize this isn't a desired method...

[omamed]

I ended up starting from scratch one more time.  This time I converted the image I had to an SVG and cleaned it up from there.  For some reason, this worked!?  Again, I so appreciate the time you took to work with me. It was helpful, and looks like you discovered a bug!  Good work!  Have a great day! 

[seth.madore]

That's.....quite odd. Thanks for circling back and letting us know!

[engineguy]

@omamed 

@seth.madore 

Hmmm, yes, that is very interesting, starting from scratch and using a different workflow seems to have done the trick for you.

Handy to know if anyone else has similar problems, thanks for the information, now I am thinking was there really a "bug" at all ???

Maybe the Developers can come back on that 🙂

[luke.wielgus]

We are looking into this issue for you now.