topic Re: Modeling Error: Can't create patch toolbody, please check the inputs. help! in Fusion Design, Validate & Document Forum

Modeling Error: Can't create patch toolbody, please check the inputs. help!

Anonymous — Mon, 08 Jul 2019 14:42:06 GMT

Hi guys

new to fusion 360 so i was wondering if anyone can offer some advise.

Im trying to build a model of a guitar neck and im having a problem with the patch tool and im getting the following error.

Modeling Error: Can't create patch toolbody, please check the inputs.

The area is a small triangle on either side of the heel transition on my guitar neck model

any ideas as to what my be causing the problem ?

https://a360.co/2S2MwV1

Re: Modeling Error: Can't create patch toolbody, please check the inputs. help!

jeff_strater — Tue, 09 Jul 2019 20:48:11 GMT

Thanks for sharing the file, @jak3tayl0r . This is a bug in Fusion - the preview and final commit use slightly different logic to determine if the path is "closed". There is a workaround, though (a bit on the ugly side, but it does work):

create a Base Feature
do the Boundary Patch in the Base Feature
exit the Base Feature
Stitch the surfaces together

this is also the same problem reported in this thread: patch-problems

Re: Modeling Error: Can't create patch toolbody, please check the inputs. help!

Wayne_Carlson — Mon, 13 Mar 2023 19:00:24 GMT

More than 3 years later I'm still getting this symptom. The preview is fine but compute error on the patch. Thanks for the workaround, it worked for my case.

Re: Modeling Error: Can't create patch toolbody, please check the inputs. help!

andrewQFQPJ — Sat, 15 Feb 2025 19:41:22 GMT

After hours struggling with this issue, you saved me probably throwing myself off a bridge somewhere. Thank you!

Re: Modeling Error: Can't create patch toolbody, please check the inputs. help!

robdenuto — Wed, 26 Nov 2025 19:22:03 GMT

6 years later, you saved me hide!