topic Re: Constraints missing after applying chamfers to a rectangle in Fusion Design, Validate & Document Forum

Constraints missing after applying chamfers to a rectangle

Anonymous — Thu, 11 Mar 2021 13:04:11 GMT

Hi folks,

this is my first post here, so please bear with me. I've already done a few smaller parts with Fusion 360, but this time I'm getting lost on constraints.

I've drawn a shape that I want to extrude. But most of the lines are missing constraints, it all came after applying the 2 mm chamfers to the edges of the rectangle. How do I fix this?

Thanks a lot.

Best regards,

Jan

Re: Constraints missing after applying chamfers to a rectangle

TrippyLighting — Thu, 11 Mar 2021 13:08:45 GMT

That is one of the reasons we don't recommend applying such small fillets or chamfers in a sketch. Apply them as solid features. This saved time in having to debug a sketch and generates an overall faster model.

Re: Constraints missing after applying chamfers to a rectangle

TheCADWhisperer — Thu, 11 Mar 2021 13:24:24 GMT

@Anonymous wrote:
How do I fix this?

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Some one will demonstrate how to fix.

Re: Constraints missing after applying chamfers to a rectangle

Anonymous — Thu, 11 Mar 2021 13:32:24 GMT

OK, I've never heard of this recommendation and it seems counterintuitive to me. This is not exactly user-friendly.

But - I guess you have to accept some idiosyncracies with software as complex as this one 😉

Could you give my a hint regarding other "Do's and Don'ts" in Fusion 360?

I fixed the design by manually adding measurements to every element.

Best regards

Jan

Re: Constraints missing after applying chamfers to a rectangle

TheCADWhisperer — Thu, 11 Mar 2021 13:35:03 GMT

@Anonymous wrote:
Could you give my a hint regarding other "Do's and Don'ts" in Fusion 360?
I fixed the design by manually adding measurements to every element.

I see a lot of repeated dimensions.

I would not do that.

Re: Constraints missing after applying chamfers to a rectangle

TrippyLighting — Thu, 11 Mar 2021 13:39:57 GMT

@Anonymous wrote:

OK, I've never heard of this recommendation and it seems counterintuitive to me. This is not exactly user-friendly.

But - I guess you have to accept some idiosyncracies with software as complex as this one 😉

Could you give my a hint regarding other "Do's and Don'ts" in Fusion 360?

I fixed the design by manually adding measurements to every element.

Best regards

Jan

This is not Fusion 360 specific advice but applies to all modern parametric CAD software.
You intuition is misguiding you in this case!

Re: Constraints missing after applying chamfers to a rectangle

shahriarsifat1802164 — Fri, 12 Mar 2021 05:54:19 GMT

When adding chamfers or fillets sometimes it breaks the existing relations of sketches, basically, I try to add them on the solid model which is parametrically good.
Thank you.