topic Re: Constraints will not work in 2D sketch in Fusion Support Forum

Constraints will not work in 2D sketch

Sabertool — Thu, 20 Apr 2023 15:29:35 GMT

This morning I started making a 2D sketch and when I try to apply my constraints, it's gives me an error. At first I thought maybe I was doing something wrong but after a little more coffee, I'm positive that I'm not. The specific constraints that I'm having an issue with are, colinear, symmetrical, coincidental, and even simply dimensioning my sketch. It will either say "Failed to solve" or it will say that the dimension will need to be driven (even when there is no constraint or dimensions applied to the detail.) Is anyone else experiencing this?

Re: Constraints will not work in 2D sketch

davebYYPCU — Thu, 20 Apr 2023 15:36:25 GMT

Not yet,

For such a bread and butter function in sketching, will come down to your data.

Might help....

Re: Constraints will not work in 2D sketch

TheCADWhisperer — Thu, 20 Apr 2023 15:39:47 GMT

@Sabertool wrote:
At first I thought maybe I was doing something wrong…

@Sabertool

Does this behavior persists after rebooting computer?

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

Re: Constraints will not work in 2D sketch

Sabertool — Thu, 20 Apr 2023 15:45:55 GMT

I have tried rebooting as well as trying on another PC and the problem continues. I'll attach my file.

Re: Constraints will not work in 2D sketch

TheCADWhisperer — Thu, 20 Apr 2023 16:03:15 GMT

@Sabertool

Where is your Design History?

Why is the Origin at a strange location?

Is this the only file that is exhibiting the unexpected behavior?

Re: Constraints will not work in 2D sketch

Sabertool — Thu, 20 Apr 2023 16:28:03 GMT

Re: Constraints will not work in 2D sketch

Sabertool — Thu, 20 Apr 2023 16:27:13 GMT

The origin is the corner of the solid. So far, yes this is the only thing I've worked on today that is giving me the issue. I haven't tried starting a new design. I ended up deleting my sketch, turned on capture design history, and starting a new sketch. The problem seems to have gone away. Why would capturing the design history affect my constraints?

Re: Constraints will not work in 2D sketch

TheCADWhisperer — Thu, 20 Apr 2023 16:46:22 GMT

@Sabertool wrote:
Why would capturing the design history affect my constraints?

That is the question that can't be answered.

When you turned off Design History you removed any ability to diagnose.

Kind of like turning in a math test with only the (wrong)answers.

Without showing your work the teacher cannot show you where you went wrong.

BTW - I think you are doing too much work with those circles for holes.

I would have some fully defined rectangles and then use the Hole command instead.

Mirror and/or Pattern that which can be Mirrored and/or Patterned. Get Lazy! Let Fusion do the repetitive work for you.

Re: Constraints will not work in 2D sketch

Sabertool — Thu, 20 Apr 2023 17:06:34 GMT

I normally would go that route but the sketch is for a fixture and I am designing it as I work, so a lot of the design is in flux. That's why I'm doing it the "hard" way.