Projected items not moving with reference sketch

[treypdesigns]

Hi there! I'm having a strange issue with projected sketches. Maybe I'm trying to use Fusion 360 like Solidworks, but here's my issue...

Let's say I draw a rectangle on the bottom view plane. It will be the base of a loft. The loft will have a guide curve that is affixed to the base rectangle sketch, so if I change the dimensions of the rectangle, the guide curve moves with it. 

Normally what I would do is make my base rectangle, then in a side view plane, project the edge I want the guide curve to stick to, and bada-bing-bada-boom, the curve moves as I change the size of the base rectangle. Fusion 360 seems to not want to do this, so I want to know, is there something I'm missing or not understanding?

Here are some images...

[Leo_Dyn]

When projecting, did you make sure that the "projection link" box is checked?

I believe if that box is not checked, the projection does not stay linked to the original source.

[treypdesigns]

That box isn't available. I am working overtop an imported STEP file if that has anything to do with it.

[Leo_Dyn · Accepted solution]

Make sure "capture design history" is turned on. I think that is the only way that the projection link option shows up.

I'm pretty sure every time you import a step file that the design history is turned off by default. Just right click on the "document settings" in the browser tree and the "capture design history" option should be at the bottom of the right click menu that pops up.

[g-andresen]

Hi,

you need to create Rails on a separate plane and create connections to the two profiles there via project/intersect.

Screencast

günther

[Joshua.Aigen]

Hi @treypdesigns, I would use the advice here and do what other have said, but there is another way. Using the parametric nature of Fusion 360 you could use the rectangles dimension to drive the location of the end point of your curve. Basically I take d1 that is the length dimension of the rectangle and in the next sketch instead or projecting the line dimension from the center to the end point and enter d1/2 which is dimension 1 divided by 2. Now any change to the rectangles size will follow though to the curves location. I've attached a Fusion 360 file as an example. 

[treypdesigns]

Thanks! That did the trick.