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Dimensioning Springs

StephenGStephenG Member Posts: 220 ✭✭✭
I have created a 3D model of a simple helical compression spring and I cannot figure out how to a dimension a drawing documenting its overall (Free/Compressed) length and OD/ID if I have to dimension to silhouette curves.

The dimensioning tool in OS Drafting does not like silhouette curves which is understandable, but there is no way to add center/alignment lines to silhouette curves to allow dimensioning.

Comments

  • MBartlett21MBartlett21 Member Posts: 1,500 EDU
    StephenG said:
    I have created a 3D model of a simple helical compression spring and I cannot figure out how to a dimension a drawing documenting its overall (Free/Compressed) length and OD/ID if I have to dimension to silhouette curves.

    The dimensioning tool in OS Drafting does not like silhouette curves which is understandable, but there is no way to add center/alignment lines to silhouette curves to allow dimensioning.
    Create a sketch, showing the overall length, then in the drawing, update, then right click on the view and choose show sketches. Choose the sketch you just created, then dimension to it
    MB - I make FeatureScripts: view FS (My FS's have "Official" beside them)
  • philip_thomasphilip_thomas Member, Moderator, Onshape Employees, Developers Posts: 1,225
    Philip Thomas - Onshape
  • StephenGStephenG Member Posts: 220 ✭✭✭
    @mbartlett21 your suggestion is a clever work around. I added additional construction curves representing the OD/ID/Height envelope of the spring to the wire profile sketch and made the sketch visible in the drawing view, then created the dimensions to the construction curves. I found that I needed to use variables to coordinate the sketch and helix curve heights. Thanks.
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