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Old 02-20-2019, 04:14 AM
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paperPino paperPino is offline
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Airplane fuselage design through cross sections...

Hi everybody!
As some of you already knows, my paper model hobby is mainly devoted to paper automata and paper globes. Last year, I was asked to design the OGS Explora research vessel, owned by the institution (OGS) where I work. It was a nice experience, and I hope that the final result is satisfactory, though I am an absolute beginner in the field of scale model reproduction.
Now, I would like to design an airplane through views and cross sections.
My question is:
Can you indicate good tutorial(s) explaining how to design the fuselage (but also other parts) by means of cross sections, utilizing a 3d polygonal modelling software (I usually use metasequoia)?

Thank you very much for your help!

PINO
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Old 02-20-2019, 03:32 PM
Ponytail Ponytail is offline
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Hello PINO,

This page is maybe of some help, insights…

CLICK
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Old 02-21-2019, 02:25 PM
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GaryPilsworth GaryPilsworth is offline
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Here's my pennies worth of help.....
For a fuselage, a simple round cross section.
Create a tube, as many sections as needed like thus...
Airplane fuselage design through cross sections...-capture.jpg
Move and scale as needed like this...
Airplane fuselage design through cross sections...-capture2.jpg

Wing and engine next....
Airplane fuselage design through cross sections...-capture3.jpg

A bit of texturing
Airplane fuselage design through cross sections...-capture4.jpg

And so on...….

Gary
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Old 02-21-2019, 03:17 PM
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^Basically that. Conceptualise as a series of deformed cylinders, plan ahead how many polygons you intend for each bit, and make provisions for when things blend in or out of the fuselage, like intakes or cockpits. If you have reference on how the cross section looked like, then it's a good idea to try matching those.

Having said that, a better thing to learn is how to use polygons to design complex surfaces in general. Vast number of CG tutorials and videos can help on that, and I think your question is best answered by learning such mindset rather than particular techniques. Aircraft model design is no different.
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Old 02-22-2019, 03:01 AM
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Quote:
Originally Posted by Ponytail View Post
Hello PINO,

This page is maybe of some help, insights…

CLICK
Thanks, I will check that software.
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Old 02-22-2019, 03:08 AM
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paperPino paperPino is offline
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Quote:
Originally Posted by GaryPilsworth View Post
Here's my pennies worth of help.....
For a fuselage, a simple round cross section.
Create a tube, as many sections as needed like thus...
Attachment 378137
Move and scale as needed like this...
Attachment 378138

Wing and engine next....
Attachment 378139

A bit of texturing
Attachment 378140

And so on...….

Gary
Basically, I follow the same method, adapting the cylinder sections to the cross sections of the plan. A part some corrections, the points around any section should be alligned radially to the points around the adjacent sections.
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Old 02-22-2019, 07:01 AM
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maurice maurice is offline
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SurfMaster, by Emil Zarkov, is an add-on for Autocad - which I usualy
refer to as Fraughtocad - so I have no experience of it as a program.
Just for reference see
SOFTWARE: SurfMaster v4.1 by Emil Zarkov :: ModelArt :: Card Models :: ZarkovModels Store

but the user manual at
http://cadbest.com/store/files/Surfm...UserManual.pdf
describes some basic concepts in a way that you might find helpful.
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