Getting this sketch "all black"

[rpsalas]

I am trying to make this slightly complicated be ready for extrusion. From what I understand it must be fully "closed" which is shown by it having all "black" lines instead of blue. And I think that I can look for the problem by trying to move any point, line or arc and see if I can move it, then there's a constraint missing. I think there's some mistake in my understanding... Here's the state of things. Can you help me understand?

 

[TheCADWhisperer]

@rpsalas 

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

When in doubt - click, drag and observe.

Looks like an open profile too.

This line should be black - so something missing here too, click, drag and observe.

[rpsalas]

Thanks! I knew about click and drag, and no one wanted to move. I didn't realize about the redundant constraint with the semi circle, thanks for pointing that out. At any rate, I got frustrated and built it up again from scratch and it worked. I wish there was a way to see whether there's a double line, and whether two lines meet but don't join (i.e. separate endpoints that are not coincident.) But for now, I am all set, thanks!

However just for giggles I am attaching my whole file and maybe you will be curious and look and give me some tips!

[chohmanQ74YB]

I use this command line a lot.

sketch.showunderconstrained

[TheCADWhisperer]

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@rpsalas wrote:

At any rate, I got frustrated and built it up again from scratch and it worked.

maybe you will be curious and look and give me some tips!

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You should have attached the original file.

I would do this very very differently.

Would you be interested is seeing how I would do the geometry?

[rpsalas]

Yes, I would certainly appreciate it!

[TheCADWhisperer · Accepted solution]

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@rpsalas wrote:

Thanks! I knew about click and drag, and no one wanted to move.

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Hmmm, worked for me.

[TheCADWhisperer]

@rpsalas 

Get this far and then we will consider the battery and function of the clips.

[rpsalas]

Awesome, thanks. very useful! How do you get the display to be bright yellow with black outlines. It seems maybe a little clearer. Note that I do have lots of parameters that give me the actual dimensions of the battery and multiple other things. 

I appreciate your help!

[rpsalas]

Beautiful! Like you are writing a course just for my specific case. Wow.

[TheCADWhisperer]

@rpsalas 

Here is the next step.

If you are going to go to the trouble of creating parametric variables then be sure to fully define your sketches in such a way that everything updates in a robust and predictable manner.

[JamieGilchrist · Accepted solution]

@TheCADWhisperer,

Really nice and helpful series you provided here for @rpsalas. The reason the geometry didn't update when you first added the tolerance dimension is because of the redefined sketch plane.  When you redefine a sketch plane, Fusion will take any projected geometry, disassociate, and Fix/Lock it.  We are looking for ways to handle this more intelligently, but this is the current behavior.  Your resolution was spot on. Just know that if you redefine a sketch plane, it's a good idea to edit that sketch and reestablish any broken projections, as you did, so your model behaves as expected.

[rpsalas]

Again thanks so much for your clear explanation and the time you put into making the video. I learned a lot!