Turning a drawing into a sketch. Push Pull Not working

[kmcgheeCMFPG]

So as I learn to use Fusion I am learning it from the most common things my students will use. Often they draw objects on paper then scan them and trace them on the CAD. So this is the first thing I am really trying to learn beyond the basics of sketching.

In this case I added a Jpeg as a canvass and used T-Splines to trace them. This is comparable to the method of using a background bitmap and free form curves in Rhino 4.0 we have been doing for the past 10 years.

So now that I finished sketching it, I am unable to push pull it out to about 1/4" to then plasma cut into aluminum.

Can anyone please look at my file (attached) and give me some pointers as to what I did wrong so I can learn to do this the right way?

[jeff_strater]

It looks like you have one bad spline in this sketch.

See the screencast below for a video on how to find the bad curve and fix it:

Hope this helps,

Jeff

[kmcgheeCMFPG]

Oh my goodness, you have just helped me in however long that took you, to learn how to debug a drawing that I ever figured out how in 10 years using rhino. Thank you sooooo much. I had no idea it could be that simple to find the problem, in Rhino you had to go to each point and work around it.....

Question you said you were holding down the ctrl key I think to keep from snapping to the existing points? Could this be the annoying problem I have where when drawing I get a blue dashed line connecting to point?

[jeff_strater]

Good question.  The blue dashed lines indicate "alignment".  That does not capture a dependency, just helps you align with other points in your sketch.  It helps in simple cases like this:

but, doesn't do too much good in cases like yours.  In general holding down CTRL (CMD on Mac) will disable all kinds of inferences (parallel/perpendicular, snap to curves/points, etc).  I used it in this case because I did not want to snap to the existing curve in that sketch.  I use this a lot when creating splines, but for simple lines/arcs, I usually want to infer those constraints.

Jeff