Is there a way to constrain a point on a sketch to an edge on a body?

[Anonymous]

I am new to Fusion 360 and I am trying to have a point on one of my sketches be collinear with an edge of a body. In the attached image I am trying to get the bottom left point of the sketch to be in line with the highlighted edge on the body. After I select the point on the sketch then the collinear constraint I am unable to select the edge on the body. Can this be done in Fusion 360?

Thank You

[g-andresen]

Hi,

on which plane is the sketch with the point?

Make a test and see what happens when you create a coincidence between the point and an edge.
Please share the design and name the elements that should be related to each other.

günther

[wmhazzard]

A point can't be collinear with a line, only lines can be collinear with each other. You can make the point coincident with the line though. Also make sure to project the edge of the body into your sketch unless you have the auto project selected in your preferences. 

[Anonymous]

The plane with the sketch is a constructed plane, since the its at an angle and the body edge of interest is parallel to the front plane projecting doesn't seem to help. My current work around is to create another construction sketch on the body so that I can get the length of the line and use that to dimension my sketch, but there should be a better way. 

[GRSnyder]

Since your sketch both intersects and is perpendicular to the geometry of interest, there are a lot of different ways to achieve what you want.

To answer your specific question, just project in the edge. Since it's normal to the sketch plane, it will project as a point. Add a Coincident constraint between that point and your corner (or just sketch with that point to begin with).

To do what you actually want (as near as I can tell), I think you'd be better off just projecting the long side wall of the slot (that is, the entire face) and sketching the rest of the part relative to that. It's parallel to the sketch plane, so it will project as a rectangle. Doing it this way will not only give you three line segments for free, but you can also get rid of a number of Perpendicular constrants and that 3" dimension.