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Basic question: How do I create a part with exact dimensions?

lee_r709lee_r709 Member Posts: 4 ✭
in Drawings

To start, I'm just trying to make a board that's 16 and 13/16" by 46" by 11/16".

I'm looking for a way to Create a part with those exact dimensions and to be able to Resize an existing part - with exact, typed-in dimensions. For example: https://cad.onshape.com/documents/88380b26fd5a13ef17f82fd3/w/616d74c0964f64cfa42fb9ec/e/5ec6e7283fefcffd750a4cb8

I can't see anything in the UI. And searching these forums/help turn up thousands of results that don't seem relevant.

This is basic, what am I missing?

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Comments

  • glen_dewsburyglen_dewsbury Member Posts: 1,079 PRO

    Add dimensions to the sketch?

  • MDesignMDesign Member Posts: 935 ✭✭✭

    You are missing Intro to CAD course to show you how Onshape works and thinks. You make parts in a part studio then place views of the parts on drawings.

  • MichaelPascoeMichaelPascoe Member Posts: 2,415 PRO

    @MDesign nailed it. The Onshape Learning Pathways are by far the most efficient way to learn Onshape.

    To answer your question:

    • Create a new document.
    • Within the part studio, create a new sketch on, lets say the Top Plane.
    • Within that sketch, use the rectangle sketch tool to sketch a rectangle.
    • Use the dimension tool and put dimensions on the rectangle. Make sure you constrain the rectangle to the origin of the part studio or else it will be able to move around.
    • Within the dimensions, you can set them manually, or you can set them to variables.
      • There are multiple types of variables:
        • Configuration variables: If you use configuration variables you will have some quick inputs at the top of the document to quickly change the variables.
        • Feature variables: If you use feature variables in the feature tree, they will be stored in the feature tree and you can edit them to change their values.
        • There are also variable tables and variable studios, but I assume you wont need those for now.

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  • lee_r709lee_r709 Member Posts: 4 ✭

    Thanks everyone. I didn't think anyone replied (never got an email and there is about a 2-day gap between when I posted and the post timestamp). So I'm halfway through the project in Autodesk Fusion.

    But I will bookmark this page and eventually try @MichaelPascoe 's suggestions and maybe do more tutorials (I did the very first one recommended by the site).

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