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Help with partial constraints?
christopher_jirka
Member Posts: 3 ✭
I'm loving learning to use OnShape. I learn best when I have a project that forces me to dig deeper, so I'm working on a cutout for a friend.
I can't figure out why the heart (splines) at the top is blue. Can someone take a look and let me know what I need to do to fix the constraints. Also, the box on the left side. Once these are fixed then I'll replicate them.
https://cad.onshape.com/documents/36746d25d7348c913810e494/w/acc47afcdef1530cfc320254/e/3a158bfc16c042baf75506c2
Thanks,
Chris
I can't figure out why the heart (splines) at the top is blue. Can someone take a look and let me know what I need to do to fix the constraints. Also, the box on the left side. Once these are fixed then I'll replicate them.
https://cad.onshape.com/documents/36746d25d7348c913810e494/w/acc47afcdef1530cfc320254/e/3a158bfc16c042baf75506c2
Thanks,
Chris
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lemon1324
Member, Developers Posts: 223 EDU
Short answer: The box on the left the lines are free to move wider/narrower. On the spline, the endpoints have not been dimensioned to anything, and the control points (which control the path between endpoints) have also not been dimensioned to anything.
In an engineering application, I'd add dimensions to whatever critical parameters you have with respect to function.
In this case, though, since you're tracing an image to match a design, I'd drag points around by hand to lie over the image, and then select and apply the "fix" constraint to prevent further accidental motion. The "fix" constraint is the one at the far right of the bar, and tells Onshape not to move the geometry you selected, without having to supply additional external dimensions/constraints.Arul Suresh
PhD, Mechanical Engineering, Stanford University6
Answers
In an engineering application, I'd add dimensions to whatever critical parameters you have with respect to function.
In this case, though, since you're tracing an image to match a design, I'd drag points around by hand to lie over the image, and then select and apply the "fix" constraint to prevent further accidental motion. The "fix" constraint is the one at the far right of the bar, and tells Onshape not to move the geometry you selected, without having to supply additional external dimensions/constraints.
PhD, Mechanical Engineering, Stanford University