Adding framework to a compound surface - Fusion

[Mr_ticketec]

Hi All, 

Need some help with this task. I want to add framework to the exterior of a compound curved surface. I have added a picture of what the framework looks like. I tried the emboss command, but this does not lay down the framework in straight lines but rather follows the direction of the surface.

The other solution I had was to add construction planes on either side of the framework and loft one side to the other. This will not sit fully conformally but might be close enough to work.

Any better suggestions?

This post has been edited due to: @heather_tracy added the product to the title to help more community members find this topic. 

[Drewpan]

Hi,

One of the biggest issues we run into on the forum with this sort of modelling is that

many beginners try to design from the Inside Out. That means that they design all of

the stuff inside the model, in this case of an aircraft like the fuselage Stringers and

Bulkheads, and then they try to build a Skin over the top. Now it isn't that this method

does not work, it is that it is the Hard Way to go about it.

I have designed several Aircraft and a few Boats and things, but the real experts on

this forum are @wersy and @davebYYPCU . These guys taught me to design this

stuff from the Outside In. To do this you would design the Outside Surface of the object

and then using tools such as Thickness to create the Skin, cut that from the Solid and

then create the internal structure. I think that this may be the best way for you to design

the Lancaster Tail Turret in the picture. I have let the guys know in this Post and they will

probably give you some advice soon.

Cheers

Andrew

[davebYYPCU]

Currently your body does not come close to the canvass for location or shape.

Would be normal to Extrude > cut windows for the body

Thicken to the outside the resulting frame, by frame thickness.

Might help...

[Mr_ticketec]

Yes, This is the first piece where I have started with the outside shape and then drawn the insides to suit. I needed to produce the "perspex" part first to make sure it would fit correctly on the fuselage. Now that this has been done, I designed the internal details and now just need framework.

[Mr_ticketec]

Hi, The shape that is drawn is correct for the part that I need. I am not to worried about the canvas's as these were just for reference as I needed it fit a real model built from other plans. The clear part has already been vac formed of molds produced from the drawn shape.  

What would be the best way to draw the cut's for the windows? 

Thanks

[davebYYPCU]

For the rear half, would do side view Rectangles, then 

Front view rectangles, and check those cuts align in top view, cut a copy of the prespex body.

Not following the canvass, then these rectangles are by eye, to your liking.

Might help...

[Mr_ticketec]

Is there any special way to deal with the odd shapes/curves that will occur as you cut away the compound curves?

[davebYYPCU]

Thicken Command, will add thickness to the frame.

Extrude cutting the window shapes, do not need to worry about compound curves, Fusion will give them to you.

Might help...