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Sketches not fully defined and I... admittedly don't understand constraints yet.
Answers
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Your dimensions must be driving not driven.
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So all dimensions need to be driving?
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Most dimensions will be driving as you use them to define the shape you want. Occasionly a dimension may be added to show a dimension which is already defined but helps read ability. E.g. The dim from one side to a feature is defined as is the overall length, and this makes sense from a modeling perspective, but you put a driven dimension from the feature to the other edge because it saves having to subtract the driver from the overall length every time.
Engineering textbook: https://hwh.stephenteacher.com/txtbook.html1 -
Bingo!! All define. Thanks to ya'll for the direction. On to the next step of printing!
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