I added all dimensions and relations I could think of, but it still show it's under defined. If I click and drag the sketch from any point the whole thing moves and doesn't change shape.
By your comments alone, I'd say you defined the geometry, but did not link it to the origin.
There is no Sketch in the attached...
Click on a vertical line and see if it's Vertical and the same with a horizontal line..
The file you uploaded is blank, no sketches, no nothing. Please try again
Try this one
Where is your Origin Center Point?
I cannot find a single dimension in your sketch which is manufacturable?
The logical location for the Origin would be the center of rotation.
I would -
1. Move the image such that the pin at the center of rotation is at the origin.
2. Scale the image such that one of the easy to measure dimensions matches the real part.
3. Recognize that this is a picture - enter easy to manufacture/inspect dimensions. (take that 82.71884285° dimension out the shop floor and show to machinist and it will take years (if ever) to get back credibility)
I would have used a Circle (arc) or set of tangent arcs rather than the spline.
As a beginner - create each entity and fully define it as you go (don't create entire profile and then try to figure out what relations/dimensions you need).
Thanks for the advice.
Sounds like your missing origin constraints.
Yep, with your attached sketch, I was able to constrain it both vertically and horizontally to the origin which then locked it.
Quick check is the color - see below image - the bottom one (black) is fully define while the top one (blue) needs to add some
Christian, you should use midpoint centerlines to save you some time on your equal relations
I actually didn't add 2 construction lines inside the rectangular, I used "center rectangle" so the construction lines are already included so I just snap the center to the origin
Sorry should have clarified. 4 clicks are all you need!
My point is to show the different colors for quick check of define/undefined sketch, not "How" to add constrains for fully defined sketch. So I created a sketch with 2 profiles on it.
If you tried to prove your way of drawing of sketch is quicker, then it's fine for me
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