Two stroke exhaust pattern

[Anonymous]

Hi all  I’m trying to use the program to go from  

strait cone drawings   Bending the cones keeping the centreline the same 

then un rolling them  to a flat pattern that can be water cut.  

I have done this before on a free trial of rhino5 and it worked well  my free trial has now expired 

spent the afternoon on Autodesk and can’t get it to do what I want it to do  

[laughingcreek]

fusion has some flattening capabilities via the sheetmetal tool, but it won't directly do what it sounds like your trying to do.  It's surfacing tools are generally not as devolved as rhino's.

Do you have a model? or a picture/diagram?

[Anonymous]

 

So this is what I need to do only  with a different set of pipes 

[TheCADWhisperer]

Use hybrid sheet metal modeling techniques in Fusion.

[Anonymous]

??? How do I do that thanks 

[Anonymous]

Thanks watched your video https://youtu.be/DRsjSew7SxU  

Is there a way to do many cones (15 cones) at once  

Rather than drawing each cone separate 

thanks 

[TheCADWhisperer]

If I were doing this - the first thing I would do is model the entire design as a single solid body (no wall thickness, no separate components).

Once I have that completed I would understand the geometry that I need and have an envelope/scaffold defining the geometry.

My first attempt is nearly always a trial to understand the geometry.

[chrisplyler]

Fusion sheet metal space will unfold items that adhere to the sheet metal requirements. Compound curves do not fit the requirements. If those exhaust pipes are composed of several truncated cones (without compound curvature) welded together, then you have a chance.

[Anonymous]

Drawing the pipe was not that bad and making each cone in to a body  was fine my first try was just to do a straight  pipe off all the cones  but turning that in to something that can unroll is challenging 

the is no compound curves in the pipes 

I have to bend the pipe While the center line of each cone strait.   So I may have to  cut the cones in to more parts to get a smoother bent  

and now my computer has just blew up   (It is ten years old). Was On its third battery  and now  it’s dead   So will get a new one. Download again and try again unless my mate comes back to me with the rhino5 software    

thanks for all the help will update when I’m sorted with a new laptop 

[choddercars]

hi, did you ever get this sorted out? I am in the same process, I have basically drawn the exhaust to size the done a revoke to solid, now I have to chop it up to create angles, then hollow it out then hopefully change to sheet to flatten, the to weld it together to fit the motorcycle, not easy as there are 4 pipes involved, I was hoping you sorted this out, thanks

[TheCADWhisperer]

@choddercars 

Because of Fusion changes over time, it would probably be best to start a new discussion thread with a link back to this thread as reference.

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

I would model as a solid body.

Create a Component for each component.

Offset surface zero.

Thicken each component and convert to sheet metal and add Rip as needed.