Create a form primitive

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Create a form primitive.

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In this video, we’ll create a form, create a box primitive and explore primitive creation options.

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In Fusion 360, we want to get started with a new untitled document.

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We're going to begin by selecting create form and we want to explore how to create primitives.

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We've already taken a look at how to use a sketch and create a revolved form body.

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But the most common workflow is to select one of the primitives to start your geometry creation.

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Most commonly we'll use either a box, a cylinder or a sphere.

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There are many other reasons why you might select things like pipes, quad balls or even creating a plane or a face.

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But for this example, we're going to start with a box.

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When we select a box, the first thing we need to do is select a plane and then we'll be creating a rectangle.

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This can either be a center point rectangle or a two point.

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Once we begin to define it, you'll note that we have dimensions on the screen and we can manually enter values or we can simply skip that step.

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As soon as we hit enter on the keyboard, it's going to accept the box primitive creation.

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Now this is a step that we want to be very careful on if we have to define the box primitive or any of the other primitives very specifically.

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Let's try this again.

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If we start a box primitive, this time I'm going to select a different plane.

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As soon as I click for those dimensions instead of hitting enter, I'm prompted with a new box creation dialog.

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This allows me to adjust things like the thickness, the overall size in all directions,

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and the number of divisions that we have in each of these different directions.

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Doing this at the start of a design is extremely important because we cannot get back to this box creation dialog.

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We can of course subdivide or remove edges later on.

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That's not a problem.

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But it's much easier for us to define it now and then make the small changes later.

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Once we say, OK, now we have two subdivided Tspline bodies.

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These are both created using the box primitive but they're very different.

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We have a large number of divisions on one and a small number on the other.

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Both can still be modified in the same manner.

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However, again, it is important that we start the process off by understanding the end goal.

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I'm going to select Body 2 and hit Delete on the keyboard as we're going to be focusing on this box primitive only.

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The size and shape of the box primitive doesn't really matter at this point.

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But using the standard settings for the number of divisions and not having symmetry will help follow along with the process.

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We're going to stay inside of the form workspace but let's go ahead and save this as box primitive before moving on to the next step.