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Old 01-20-2019, 10:55 AM
juniorbrasil's Avatar
juniorbrasil juniorbrasil is offline
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Frames thickness

Hello friends.

I'm trying to make a model on my own. That is the E25, in 1:25 scale. I found the simplest model to try and do in paper model.

But my problem is to calculate the frames that support the model.
Well, I have the template in sketchup and it's ready for the unfold, but I want to make the frames. I know that frame follows the contour of the model.
But how do I calculate the joints between the frames. I'll send the drawing as I understand it.
I made the outside of the tank (sheet of 0,2mm), then got the sheet thatglue over the frame (0,1mm) and the frame with 1,5mm (it's the cardboard that I in have in home, I'll reuse).
Thus, the joints would have a depth of 1.6 mm, considering only the sheet of 0,1 mm or 1,8 mm, considering the sum of 0,1 plus 0,2? This is my problem Because the sheet of 0.2 mm when surrounds the frame I have already made, using the same frame (1,5mm) I know that the strip on the frame must have 1,9, since I count 0.2 mm on each side.

Thanks for the help friends
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  #2  
Old 01-20-2019, 02:48 PM
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maurice maurice is offline
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Think this is what you are thinking.
This is for plates meeting at a 90 deg angle.
For plates meeting at other angles, such as the roof and sides, the notch will need to be wider and you may need to trim the sub-frame by hand.
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  #3  
Old 01-20-2019, 11:23 PM
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Jim Nunn Jim Nunn is offline
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Your sketch gives me the impression that you are referring to the notch and tang assembly method used to make the base hull. if the notch is not deep enough when you assemble the model most likely you are not taking into consideration the thickness of the glue. each layer of glue will add around 0.003 to 0.004 inches. For what it's worth I keep a 6 in dial caliper on my modeling bench.

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Old 04-10-2020, 09:09 AM
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juniorbrasil juniorbrasil is offline
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Hello everyone, I'm back.

Guys, I need some help.
I won two packs of cardboard. In one package the sheets are 1.8mm thick and the other is 0.8mm thick.
And I would like a tip on how I can assemble a paper model with these cardboards, since the instructions guide the use of 1mm cardboard.

Thanks.
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  #5  
Old 04-10-2020, 09:59 AM
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rickstef rickstef is offline
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glue the model part to the .8mm cardboard, and you should be right at 1mm
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