Align two conical surfaces

[VíctorQuintana]

Hi all,

Is there a way to align and fix the position of two conical surfaces easily?

I've achieved a similar result by setting two contact surfaces and move them with the restriction of a cylindrical joint. But this may not give me the perfect alignment. (one wrong mouse movement and I am off)

Any advice would be extremely useful.

Many thanks

[HughesTooling]

This has been requested for a long time. One safe workaround would be to sketch the intersection of the cone and create a joint origin.

Mark

[JDMather]

Can you File>Export and then Attach your *.f3d file here?

[jeff_strater]

This is a very imperfect workaround.  But, I've used this in the past.  The basic idea is to create a slider, then temporarily use contact sets to find the contact point, and lock the joint in that position (or even set the joint limits).  I've toyed with the idea of writing a script to do this, but never gotten around to it.

[mavigogun]

---

@VíctorQuintana wrote:

Is there a way to align and fix the position of two conical surfaces easily?

If practical within the design, Sketching the parts as placed.   Of course, this often isn't the case.   What can be achieved with Sketching is determining the offset distance between the planar circle Edges used by Fusion to auto place Joint Snap Points.   So, by whatever method your prefer- using the Inspect tool to measure the differences between absolute distances to a common origin (XYZ coordinate), relative distance, or Dimension Constraints on a Sketch, determine the distance between planar circular Edges you wish to align.  The next step is easy- place a Joint Origin at the Snap Point of one of those Edges, and offset it by the distance determined (movement controls manifest when placing a Joint Origin).  

 
Of course, if those cones don't have the same aspect ratio, they will meet along a single plane, not 3D surface- and determining the offset to that location is more involved.   If these are common parts, using Jeff's method to place the parts then measuring the offset would yield a measurement useful for all the common parts.

I've achieved a similar result by setting two contact surfaces and move them with the restriction of a cylindrical joint. But this may not give me the perfect alignment. (one wrong mouse movement and I am off)

---

This may be checked with Inspect>Interference.

Like everything in Fusion, there may be other ways; maybe a reflexive method exists- let us know if you find it.

[kb9ydn]

Some while back I submitted an idea for allowing snapping to the imaginary vertex of a cone, specifically for aligning cone shaped objects.

https://forums.autodesk.com/t5/fusion-360-ideastation/allow-snapping-to-imaginary-cone-vertices/idi-...

For the time being, creating a sketch to find the vertex and then using that as a joint origin would be my preferred method (slow as it is).

C|

[mavigogun]

Here's a screencast demonstrating the Jeff's use of Sliding Joints and Contact Sets to find the critical distance for placing Joint Origins across common parts.

[VíctorQuintana]

It's just a demo file, it's not the actual design I am working on right now.

[VíctorQuintana]

I tried that already and it was the closest solution, though an imperfect one.

I guess I was looking for a built-in option, but it has not been developed yet.

Thank you very much.

[VíctorQuintana]

Thanks, that's what I tried at start.

It feels wierd, I've moved to fusion and I haven't missed anything from SW, but for me that was such a basic function that I'm a little disappointed.

Guess I am looking for a function that has not been developed yet.

Thanks anyway