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  #21  
Old 03-04-2012, 07:09 PM
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Swampfox Swampfox is offline
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I'm really learning a lot about how you designers work........Very interesting and educational.......

Also the a\c you selected is one of my most favorite, my dad use to work on them at Kirtland AFB in Albuquerque in the late '60's early '70's.

Thanks for the excellent thread.

SFX
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  #22  
Old 03-05-2012, 03:52 PM
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Cool. It's always nice to hear compliments. Keeps me motivated.

Next up it finishing up the engineering as I call it; drawing the landing gear and other hangers on (I think this version has little jet engine pods under the wings, and other sensor type pods on the leading edges.

This part takes a bit longer, because it involves combing the internet for any pictures of these parts as can be found.
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Old 03-18-2012, 06:12 AM
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next next next.
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  #24  
Old 03-18-2012, 08:22 AM
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Nice thread Murphyaa!

Very nice insight. Haven't tried Rhino yet, but it looks fairly stright forward!

Thanks for the tutorial!

Mike
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  #25  
Old 03-26-2012, 01:41 AM
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Can't wait to see next steps.
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  #26  
Old 03-26-2012, 05:10 AM
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I've got this one on hold while I clear up some of the backlog created while I couldn't print. I'm about halfway through.
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  #27  
Old 03-26-2012, 12:20 PM
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Looking forward to the next instalment. I always learn something new.

Cheers JTF
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  #28  
Old 04-16-2012, 06:06 AM
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Murphyaa keep this up.
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  #29  
Old 05-08-2012, 06:51 AM
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Hiho,

here is my short description to design formers in Rhino.

I'm using the command: "_Offset" or from menu: "Curve" --> "Offset Curve"


Now select your intersection line.
If you don't want the former right at the end of a part, you need to project a new intersection onto your part first.


Next step is to point to the inside. The "Distance" in the command line gets your preferred paper thickness, or twice if you wanna do joining tabs, too.
(thickness of 120gsm paper is around 0.125 to 0.15mm, 160gsm is around 0.2mm as an example)


If you are designing just a half fuselage, you probably need to trim the former lines to the centerline, this is not needed when using full hull intersections.


Now you got your formers. If you also want longitudinal formers, you have to care for the thicknesses of the formers, which could be skipped mostly on "intersection former only" designs.


My trimmed and mirrored formers next to the original lines.


In the same manner you could add tabs to your unrolled parts, by offsetting 2 lines.
Attached Thumbnails
Design Tutorial-offset.jpg   Design Tutorial-select.jpg   Design Tutorial-point.jpg   Design Tutorial-new-curve.jpg   Design Tutorial-former-lines.jpg  

Design Tutorial-former-trimmed.jpg   Design Tutorial-tabs.jpg  
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  #30  
Old 05-09-2012, 12:15 AM
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murphyaa murphyaa is offline
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Thanks for the lesson in formers Ober Freak.

I'll give it a try next time I need formers.

One thing though, I'm a math challenged product of the american public education system. Any chance you could convert the metric numbers to SAE (Standard American Equivelant)?

I've got the tutorial on hold until I get a better internet connection. I tend to make things up on the fly, and that doesn't work when I can only get online once a week or so. Don't wory, I haven't finished the RB-57 yet. It's tied to the tutorial, and I'll finish it when I finish the tutorial.
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