Help Creating a plane between two lines with a curved distance inbetween?????

[ianhughes7UFVF]

Hi

As you will see, this is a Dalek Skirt from Dr Who I am working on:

I need to add four hemispheres on each panel.

But I need to create a plan for each panel that runs from the top edge to the bottom edge so I can get a good average plane to create a sketch on to add the spheres on so that they are position reasonably centered on the panels.

But when I look through the list of options under construction menu, I carn't see anything that will allow me to achieve this.

What I need is a plane that runs between these two lines for example:

I need to create a plane for each panel for this.

Any help would be greatly appreciated.

Regards

Ian

[carl.j.barker]

You could use a couple of sketches and plane through 3 points to get a plane through the centre of the twist. you'll probably have to create an offset plane to sketch on also.

  

[ianhughes7UFVF]

Hi

That looks like its on the right track.

I think the plane needs to be based on the top plane and the bottom plane though.

Any thoughts on how to acheive that?

Its a pity fusion doesn't allow a plane through 4 points or two lines.

Regards

Ian

[g-andresen]

Hi,

What do you want to achieve in the end?

Please describe the goal of your action with a hand sketch in your picture.

günther

[davebYYPCU]

I went with 3d sketch, for the centre line Paths.

Sketch the revolve, top or bottom, 

Pattern on the Path. Remove the starting sphere.

Might help.....

[carl.j.barker]

How about this.  Using an Axis at point and plane at angle using the axis.

[carl.j.barker]

Then pattern on a 3d sketch line, Doing this way I had to use replace face to fully join the half balls to the face.

Or I guess you could revolve full spheres and loft cut the inside after they are all done.

[TheCADWhisperer]

---

@ianhughes7UFVF wrote:

Its a pity fusion doesn't allow a plane through 4 points or two lines.

---

Ahem, it does - if the 4 points (only 3 are required) or two lines are actually planar.

Those two lines are not on the same plane.

[ianhughes7UFVF]

Hi

I can create a sketch of the top and bottom planes like you have.

How do you get that center line running from top to bottom.

That would help if I could do that?

Regards

Ian

[TheCADWhisperer]

---

@ianhughes7UFVF wrote:

Hi

I can create a sketch of the top and bottom planes like you have.

How do you get that center line running from top to bottom.

---

You already have the sketches.

Midpoint (Coincident)  constraints.

[ianhughes7UFVF]

Hi

It may help seeing what I have to work on. Here are the plans I have:

If I was doing this with wood, on the full sized prop I would make the skirt, glue the parts together and simply run a measuring tape along the panels even twisted as they are and mark the holes and create the spherical holes.

I just carnt see how we can do that in the fusion model with the twisted panels.

Sorry if I am completely missing something here. I am known to be thick.

Regards

Ian

[TheCADWhisperer]

---

@ianhughes7UFVF wrote:

If I was doing this with wood, 

I just can't see how we can do that in the fusion model with the twisted panels.

---

Do you realize that it would only require relatively minor changes to remove the twist?

Then you would have simple flat, planar panels.

Well, maybe a bit more change than I thought, but most panels could be planar.

[TheCADWhisperer · Accepted solution]

The Attached should get you started.

Could save a lot of work if the vertical heights can be rounded.

[davebYYPCU]

My spheres were equally spaced, between top and bottom, with these details, Will check your top and bottom sketches.

The pattern on path will still work, but not with the first sphere in top or bottom sketch, first one will be on a plane as @carl.j.barker started with, 95 off the bottom.  

[carl.j.barker]

I think this is about as close as I can get the thing.

The small perpendicular radial lines are for aligning the planes for the revolve.  I initially used plane at angle on the centre lines for them because I didn't think the angle would matter, but then saw the balls were actually set back 10mm. So added the small lines to correct the angle. Should have switched to plane through 2 edges or 3 point but I had sketches on them, which I didn't want to redo.

@TrippyLighting may happen along and do it in 5 features with some weird and wonderful workflow.

[davebYYPCU · Accepted solution]

So much easier with the data sheets.  Even the Rectangular Pattern behaves better.

Might help....

[ianhughes7UFVF]

Hi

Amazing as ever.

I will have a good look through what you did and see what I need to do.

Very impressed with the results.

Thank you.

I should have provided the sheets to start off with.

Regards

Ian

[TrippyLighting]

---

@carl.j.barker wrote:

@TrippyLighting may happen along and do it in 5 features with some weird and wonderful workflow.

---

LOL. Nope 😉

Sometimes rather than spending too much time trying to "optimize" for minimum number of timeline features, =it's just better to get on with modeling to get the work done. 

If the model was going to be built from flat sheet stock I would make sure that all my panels in Fusion 360 were actually flat and not twisted. Then I would probably use @davebYYPCU's 3D sketch approach.