In Fusion 360 – and in any other CAD software – there are sketch functions called constraints.
There two types of constraints: usefull and useless.
1. Horizontal and vertical
It helps us to keep line in horizontal or vertical orientation.
However there is one more trick with horizontal/vertical constraint. We can use to position some point in the same vertical or horizontal level in relation to some other point.
2. Coincident constraint
That is the most powerfull constraint. It allows us to join point to point, or point to line(straight or curved).
3. Tangent constraint – really usefull when we draw some hinges.
4. Equal constraint – believe me – You will never use it.
The name is so obvious that I will just present how it works.
I really don’t like it. In my opinion this is an uncomfortable solution. I prefer to set such things by using dimension and parameters.
5 and 6. Parallel and perpendicular.
What about parallel to arc or circle? Let’s try.
There is no option to make perpendicular constraint to the circle. However it is possible to achieve the desired effect.
Using that constraint leads to the dark side. We can use it when we want to ground some geometry without any reference to coordinate system or other geometry.
My advice – forget about that constraint. Using it means that we will not have any control on that geometry. It is agains the main rule of CAD modeling – to make easy editable models.
Useful as often as half length parametric equation.
I have never used that. I don’t know why such constraint exist if we have coincident constraint and center points.
Just forget about that constraint. Seriously.
Then try again, but in different way.
Who needs it? I don’t know.
And that is the point. The same effect You will get using mirror function.
Curvature helps a lot when we want ot make something nice and smooth.
13. Most important rule.
Please always remember to define all the constraints and dimensions on sketches to have full control on model and avoid accidental dislocations. If there is some line that we can move freely – that is bad.
Good luck! 😉