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Help with my new riveting tool...


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#1 TwoHands

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Posted 10 October 2017 - 05:40 PM

I'm making a riveting tool. It will be about 4 inches long and will be curved on an 18" radius. You will start at one edge and roll down the rivets without the need for a guide if you follow scribed panel lines. Because in rolls it can follow curves etc. I'd like to only make one or two so I'm asking for a general idea how far flush aircraft rivets are part. I know what I think but I'm wondering what would look right in general for a typical stressed aluminum skin with flush rivets. If I can get the needles and make it work I'd be glad to show what I'm going. Thanks, Jeff

 


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#2 TonyT

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Posted 10 October 2017 - 06:43 PM

Good job I nail real ones together then and know where to look, here you go

https://www.faa.gov/...ia/ama_Ch04.pdf

#3 JimRice

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Posted 10 October 2017 - 06:46 PM

AC 43-13 is good info. Rivet spacing depends on multiple factors.
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#4 Gigant

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Posted 10 October 2017 - 06:57 PM

Depends on the type of aircraft and scale of the model.

 

I suggest that you visit an airport or an aircraft museum in NY with a sewing fabric type tape measure (in case you have to pass a metal detector) and a note pad and share the results here.


:innocent: Tom

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#5 TwoHands

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Posted 10 October 2017 - 07:19 PM

Good job I nail real ones together then and know where to look, here you go

https://www.faa.gov/...ia/ama_Ch04.pdf

Interesting! Thanks.


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#6 TwoHands

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Posted 10 October 2017 - 07:36 PM

Depends on the type of aircraft and scale of the model.

 

I suggest that you visit an airport or an aircraft museum in NY with a sewing fabric type tape measure (in case you have to pass a metal detector) and a note pad and share the results here.

I have seen tons of planes and have lots of pics. What I'm asking is what would look obviously WRONG? I'm thinking a good average is 4".


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#7 Gigant

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Posted 10 October 2017 - 08:10 PM

I have seen tons of planes and have lots of pics. What I'm asking is what would look obviously WRONG? I'm thinking a good average is 4".

 

Well, as an example, 4" @ 1/32 scale:

 

4"/32=1/8"

 

To verify your estimate, you could also dig an older scale kit out of your stash and measure the rivet distancing on it, adjusting for the scale of course.


:innocent: Tom

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#8 holzemjo

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Posted 11 October 2017 - 11:00 AM

I'm not really sure that one rivet every 4'' is enough... Extreme example, I know, but look at this image of a NMF DC-3:

7O9uus4.png

 

There seems to be a rivet at least every inch!

 

Another example can be found looking at the link, that MARU posted in general discussion: https://blog.klm.com...ircraft-leaked/

There's a closeup of a 747 showing the incredible amount of rivets that they use to keep the skin in place.

I'm not sure if it would look good to have too many rivets on a scale model, but I think a scale 4'' might be a bit too scarce...

Opinions?


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#9 Gigant

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Posted 11 October 2017 - 02:25 PM

Buy an older injection-molded kit, build it and rub it to feel soothed.


:innocent: Tom

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#10 TwoHands

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Posted 12 October 2017 - 03:43 AM

I'm not really sure that one rivet every 4'' is enough... Extreme example, I know, but look at this image of a NMF DC-3:

7O9uus4.png

 

There seems to be a rivet at least every inch!

 

Another example can be found looking at the link, that MARU posted in general discussion: https://blog.klm.com...ircraft-leaked/

There's a closeup of a 747 showing the incredible amount of rivets that they use to keep the skin in place.

I'm not sure if it would look good to have too many rivets on a scale model, but I think a scale 4'' might be a bit too scarce...

Opinions?

Wow that is a ton of rivets!


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