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Check all your sketch entities have the required constraints. I have had sketches with all relevant dimensions added and coincident to the origin remain under defined only to find a vertical line, I thought I had drawn vertical, did not have a vertical constraint (as a result of my clumsy drawing technique). When applied the sketch became fully constrained. This can happen more often than not when heavily editing sketches. Tangent & vertical/horizontal constraints can get lost somewhere. Eddy RE: Under Defined Drawings (Mechanical) 3 Jan 05 18:19.
What PEU is talking about is in the Drawing mode, not the Part or Sketch mode. If you look at the bottom right hand side of the screen you will see a 'Status bar' which shows the cursor position, 'Under defined', 'Editing sheet' & the drawing scale. As Melam pointed out, the drawing always shows 'Under defined'. This is probably because the views are never fixed. They can always be moved around on the sheet. Eng-Tips:- Intelligent Work Forums For Engineering Professionals RE: Under Defined Drawings (Mechanical) 4 Jan 05 14:22.
The state is view dependent. I have drawings with views that shows a 'Under defined' state, while other shows 'Fully defined' and even 'Over defined'.
![Define Define](/uploads/1/2/5/4/125446920/836437959.jpg)
I don't know why (in the case of 'Over defined', I gess it as to do with extra dimensions added to the view). I wouldn't worry much about it. Just be careful if you add extra items (like center lines, axes.), to fix them properly (with geometric constraints or adding dimensions - in this case put them in a hidded layer). This way, if you change the part, these items will move accordingly. Regards RE: Under Defined Drawings (Industrial) 4 Jan 05 14:40.