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Fully Constraint bug
![rune_thorsen](https://cad.onshape.com/images/placeholder-user.png)
I have this simple sketch
![Image: https://us.v-cdn.net/5022071/uploads/editor/4w/64926y45ifu2.jpg](https://us.v-cdn.net/5022071/uploads/editor/4w/64926y45ifu2.jpg)
As its black it's fully constraint, i.e. zero degrees of freedom. yes?. No
I add a perpendicular angle (take away 1 DOF)
here and it becomes as I want it. The paradox is that if it was fully constraint before then it should become red for overdefined. Or it should not have been black before as fully constrained.
![Image: https://us.v-cdn.net/5022071/uploads/editor/4w/64926y45ifu2.jpg](https://us.v-cdn.net/5022071/uploads/editor/4w/64926y45ifu2.jpg)
As its black it's fully constraint, i.e. zero degrees of freedom. yes?. No
I add a perpendicular angle (take away 1 DOF)
![Image: https://us.v-cdn.net/5022071/uploads/editor/8h/qxzeproawyfc.jpg](https://us.v-cdn.net/5022071/uploads/editor/8h/qxzeproawyfc.jpg)
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Best Answers
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john_f_carr Onshape Employees Posts: 74
You can add a new constraint to an all-black sketch if it is consistent with the existing constraints.7 -
bruce_williams Member, Developers Posts: 842 EDU
john_f_carr said:You can add a new constraint to an all-black sketch if it is consistent with the existing constraints.
What still seems strange - why is sketch showing defined (all black)? Maybe a constraint hiding under another one?www.accuratepattern.com5
Answers
What still seems strange - why is sketch showing defined (all black)? Maybe a constraint hiding under another one?