Help wanted modeling

[Anonymous]

Hi I am quite new to fusion 360 

I would be  very thankful  if I got a tip have aI good solve this problem. 

See attached picture 

Thank you 

[jeff_strater]

I assume that you want to use Loft for this model.  The short answer is to use the Sketch "Project Intersection" command in the sketch that you have shown in green.

Here is a rather long post describing some of the basics of using loft with rail curves:  introduction-to-loft-using-rail-curves-in-fusion that explains in more detail

Jeff

[lichtzeichenanlage]

If you  want to loft the design, this video is a nice starting point for lofting in general and this is my favorite set of screencasts about the pitfalls you can trap on if it comes to solve issues with rails.

[beresfordromeo]

Hi @Anonymous

I have recorded a screencast for you to illustrate @jeff_strater's solution above.

I have drawn the sketches roughly as you have shown in your screenshot, but there are a couple of distinctions. Not only will you need to sketch > project/include  > intersect your original two sketches into the rail sketch but it is good practice to project the common lines if you want to loft using the model environment. One of the sketches in your screenshot is not a closed profile because there is a line that is common to both sketches that you have not projected into your second sketch from the first. This can be seen in the screencast at 0.11, I use sketch> project/include> project to include this common line.

At around 01.00, I create the sketch on the XZ plane that I will use for the rail of the loft (sketch 3). The first thing I do as @jeff_strater suggested, is to use sketch> project/include > intersect to get the intersection of the first two sketches and the one I am currently creating.

At around 01.45 I use the closed profiles created by sketch 1 and sketch 2 to loft using the rail in sketch 3 as a guide. This is normal simple lofting with a rail and in this example creates a bit of an odd shape (understandable given the sketch geometry).

What I also wanted to show you is that in the modelling environment can loft between the faces of bodies. When you do this you can create a loft which is tangent to the faces adjacent to the ones you are using as the profiles for your loft. As you will see (around 02.36) the same rail is still able to be used because the rail intersects the faces of the bodies just as it does the closed profiles of the sketches but we also have the option to turn off the sketches and make a the loft tangent to the bodies that we are lofting from and to ...(see around 02.51). You can create a join or create a new body and discard the extrusions if you don't need them. It is just an example of how it is sometimes useful to loft between faces rather than sketch profiles.

I am sorry that this is a simplistic explanation but Jeff's discussion, 'Introduction to Loft using rail curves in Fusion' will help further. 

[Anonymous]

I understand how too use it noew thank you all for a very good help