Fusion 360 ignoring small cuts for path

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kirby97
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Fusion 360 ignoring small cuts for path

Post by kirby97 »

Hi, I have been using Fusion 360 to generate my CAMs for my torch table, whenever i am trying to cut a peice of artwork or a detailed sign it will ignore small cuts and say "Warning: One or more passes were discarded due to linking constraints." For example if my kerf is set to .062 it will not cut an .125 hole. I know it has to do with my kerf width and it not doing it because its "to big". My question is what setting do I need to change to bypass the error or any other work arond.
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Re: Fusion 360 ignoring small cuts for path

Post by adbuch »

kirby97 wrote: Sat Jan 01, 2022 8:30 pm Hi, I have been using Fusion 360 to generate my CAMs for my torch table, whenever i am trying to cut a peice of artwork or a detailed sign it will ignore small cuts and say "Warning: One or more passes were discarded due to linking constraints." For example if my kerf is set to .062 it will not cut an .125 hole. I know it has to do with my kerf width and it not doing it because its "to big". My question is what setting do I need to change to bypass the error or any other work arond.
Also take a look at your lead-ins for your pierces. If the lead-in is too long to fit in the hole or small cutout, it will not generate the cut path for that particular feature and issue a warning.
David
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Re: Fusion 360 ignoring small cuts for path

Post by adbuch »

You can also just set your kerf width to something really narrow like 0.001" and set your lead-in length to zero. Then it should generate all the cut paths. This is a good way to see which setting is effecting your work.
David
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Re: Fusion 360 ignoring small cuts for path

Post by adbuch »

Kirby97 - were you able to solve our problem using any of the suggestions made above?
David
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Re: Fusion 360 ignoring small cuts for path

Post by weldguy »

I'm with David, just reduce your kerf width.

With a kerf width of .062 x 2 (both sides of the cut) = .124 and your cut profile is .125 Fusion will ignore it.
adbuch
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Re: Fusion 360 ignoring small cuts for path

Post by adbuch »

In general - having the lead-ins too long usually causes most of these problems.
David
kirby97
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Re: Fusion 360 ignoring small cuts for path

Post by kirby97 »

Thanks, that seemed to work.
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Re: Fusion 360 ignoring small cuts for path

Post by adbuch »

kirby97 wrote: Wed Jan 05, 2022 11:26 pm Thanks, that seemed to work.

You are welcome. I assume you mean shortening the lead-ins worked for you.
David
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Re: Fusion 360 ignoring small cuts for path

Post by kirby97 »

yes i also made the kerf size smaller. Thanks again.
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Re: Fusion 360 ignoring small cuts for path

Post by adbuch »

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Steve59
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Re: Fusion 360 ignoring small cuts for path

Post by Steve59 »

Hello, new member here. I've just completed a DIY CNC plasma table. I didn't have any experience with CNC or CAD software. I started out in OnShape because I was learning to use a 3D printer. When I decided to learn how to build a plasma table I started learn Fusion.

I can't tell you how many times that I've redrawn this part that I was having trouble with getting a tool path. I had the same problem as the origional poster. I hate to think of how many hours that I've wasted trying to solve this problem.

After reading this thread my problem was solved within 5 minutes.

Thank you guys for sharing your knowledge.

Steve
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Re: Fusion 360 ignoring small cuts for path

Post by adbuch »

Steve59 wrote: Tue May 28, 2024 11:55 am Hello, new member here. I've just completed a DIY CNC plasma table. I didn't have any experience with CNC or CAD software. I started out in OnShape because I was learning to use a 3D printer. When I decided to learn how to build a plasma table I started learn Fusion.

I can't tell you how many times that I've redrawn this part that I was having trouble with getting a tool path. I had the same problem as the origional poster. I hate to think of how many hours that I've wasted trying to solve this problem.

After reading this thread my problem was solved within 5 minutes.

Thank you guys for sharing your knowledge.

Steve
Glad to hear you've got it figured out. Let us know if you run in to any other problems and we will try to help you.
David

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Steve59
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Re: Fusion 360 ignoring small cuts for path

Post by Steve59 »

I'm at the point where the table is drawing the file. Now I have to get the plasma cutter hooked up and give it a test run. Hopefully I'll be able to do that today. Unless my wife decides that I have honey do's instead.
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Re: Fusion 360 ignoring small cuts for path

Post by plasmanewbie »

Steve59 wrote: Wed May 29, 2024 6:10 am I'm at the point where the table is drawing the file. Now I have to get the plasma cutter hooked up and give it a test run. Hopefully I'll be able to do that today. Unless my wife decides that I have honey do's instead.
That's pretty exciting! Good luck, hope it all goes very well. I would start with a simple shape like a small rectangle or circle and see how that goes before getting into anything more complex. Let us know how it works out.
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