Can't get my shapes to be fully constrained

[DOOM_a]

I'm new so maybe it's a simple user error. I'm drawing a center point rectangle on an empty sketch. When I press enter to commit the triangle the sketch doesn't show as fully constrained. I can't figure out what am i doing wrong. I tried resetting all setting to default but with no luck.

Attached is an example of a file I created by:

1) Create sketch by selecting xy plane

2) draw random center point rectangle. Clicking on the center and stretching it out.

Note the horizontal lines are blue and not black but I am able to extrude the shape into a box. 

Thanks in advance

[jhackney1972 · Accepted solution]

You are missing one dimension to have a fully constrained sketch.

[Anonymous · Accepted solution]

Most of the time people use the constrained sketches to create clean sketches. I found out that sketch dimensions you change later effect the history of extruded solid objects. But, in no way they create a palleted sketch object that's also constrained. I tried creating fractals before and tune the sketches so I can manipulate bodies in Fusion 360. It's doesn't work. Most of the time the origin of the sketch is at fault. It's no wonder since sketches can be placed on faces, etc. Here I create a double coincidence. To the origin of the center in this case. Two dots directly on X and Y(0, 0)

But, in no way do they actuate in my proportionate design if I attempt changes. They confront each other on a failed z axiz. So it's not like an animation or a component lotting around. They separate. Which is not ideal if I need a sketch plane.

To your question. The sketch constrains are tallied to some form of geometry. Depending on the object you selected. So in the screenshots I provided. The line starts at 0 to 100 mm. The center of the arc starts at 0 to 100 mm radius. It's 90 degrees wide. If yuo want to call it wide. The constraints I got are vertical and coincident. And the objects are line and arc. In your sample the constrains that become driven are the constrains that have dimensions. Origin points are usually driven by the default. Maybe you mean "what's a driven constraint"?

[Anonymous · Accepted solution]

To create dimensions. Keyboard button D. Or while editing the sketch go to create, click create dimension.

You may also create an isosceles dimension. If you need a square. You need to start a square. Otherwise it's a rectangle.

But, the ratio fine lined. And changing the dimension is available.

[Anonymous · Accepted solution]

Well, let's also clean this topic up. The dimensions here are a line.

The dimensions there are 2 points.

And, for something different the dimensions here are 2 points, but one point is just a center point. That's why I keep saying that quadrilateral is important.

And finally the closing between the dimensions is a quad and one length. At that point this is the maximum. It's the only thing you can do. Attach several maxims to your sketch. Or, remove the constrains if you need to return to this sketch. This also has a terrible setback in Fusion 360 history. However remember that dimensions and constrains can be deleted or sort of edited. This is a classical view on dimensions. Because if your dimensions are classified at all. That's the only dimension you need. For example the attached height and middle. If you try to meddle with a square shape. The square shape alone already follows rules like that. A rectangle only belongs to a center. Also, maybe get a quick overview of standard shapes.

I also attached a triangle because of what you said. This triangle is a circumscribed polygon. Granted I created it with 3 sides. There are three different polygon types available with Fusion 360.

I can imagine you should be able to at least figure the shape of water, and draw your own triangle. Whether it scalene, isosceles and equilateral. It's just 3 lines.

[Anonymous]

This is what you asked. According to Fusion 360 and my understanding of related to what math explained. Yes. I can apply such principals in CAD to form the triangle. I'm not exactly rattled here. But, I only used two forms of constraints. Equal and a dimension. To be exact I used 3. A center point, equal, and dimension. But, Math explained the scalene as a gradual shape. I can change what ever side. I do believe that relationship is a determined relationship.

[Anonymous]

If I was to put it to the test inside Fusion 360. I'll post a video. It's looks like the machines do their part of the bargain. According to the live test. At least the shapes are uniform in the addition I created. Duration is 1:41. The component drag in the select window is enabled. The program defaults for Fusion 360 can be accelerated in script. So make sure you select the functional defaults provided by the publisher.

A++

[TheCADWhisperer]

@Anonymous 

It is my opinion that your posts are not useful for beginners.
@jhackney1972  seems to have a better understanding of how to help beginners navigate the learning curve of Fusion without introducing additional complexity into the discussion.

[Anonymous]

Here's another example of constrains. It's very performance differing. So I can't exactly be very responsible for stability here. I'm sure I'm missing a lot more logical constrains. I can't test. The computer will not let me. It's a model of the natural pigment that can be found on instrumental species. It's a science inscription. Depending on the relative size of tissue samples while one tissue gets smaller the other relative gets larger. This also effects the color coordination of the species. If there is more visible red to the light, and a little of blue and yellow. Or complete opposite a lot yellow versus the little of red and blue. There's also the black and white ares. Like an octopus species deep in the ocean. Of course I would much rather have this working so much better. Without paper.