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Circle that will not dimension correctly

This probably belongs in a different discussion board.  In any case, a student is having trouble dimensioning a circle in a sketch.  It is tagged in this document.

The circle in question is in the last sketch in the design tree.  The dimension tool will set the location of the circle, but not the diameter.  Additionally, the location dimension appears to be from the origin, not from an entity that we select. 

We tried making a new sketch, making it on a new plane and editing the sketch after closing it.  None worked.  Does anyone have suggestions?

Thank you,



  • Options
    S1monS1mon Member Posts: 2,493 PRO
    At some point recently, Onshape made it so that it is too easy to select planes as the other part of a dimension. Either hide the planes, or be careful to click off the planes when dimensioning.

  • Options
    billy2billy2 Member, OS Professional, Mentor, Developers, User Group Leader Posts: 2,040 PRO
    There's a little known shortcut to access the select list under a cursor. Hit the ~ key on your keyboard. Whatever is under the cursor at that instance will appear in a list and can be more easily selected. I use it a lot trying to select those things hiding behind something.

  • Options
    david_kurtzdavid_kurtz Member Posts: 24 EDU
    Perfect!  Thank you @S1mon and @billy2 for the suggestions. That is exactly what was happening and the ~ trick is very helpful.
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