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Apr 26, 2011, 05:16 PM
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scaling 3 view to use as template for panel lines

Is there a way to scale a 3 view image to the scale of the plane to use as a template. i tried using google scketchup, but wasn't able to do it. maybe it's my computer skills. anyways if you know a way i'll gladly appreciate the info. the image is at 1/72 and i need to have at 1/8

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Apr 26, 2011, 08:37 PM
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I believe you can run the 1/72 view at 900% for a 1/8 size view but the linework would not be clear. Or you could take a measurement off the 1/72 view and multiply that dimension by 9 for your new 1/8 sized dimension. The easiest way would be to set and transfer the 1/72 size dimensions via proportional dividers for 1/8 size use.

Soft landings,

Last edited by piperjoe; Apr 26, 2011 at 08:48 PM.
Apr 26, 2011, 08:41 PM
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Machinepro76's Avatar
This question would be better answered in the cad/cam forum. I can tell you from my limited experience with scetchup and most other cad programs is that you don't need to scale the imported file since it is most likely a bitmap anyway. Just draw over your 3 veiw and then rescale those lines. They will have vectors while your imported pdf does not.
Apr 26, 2011, 08:47 PM
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If the drawing truly scales at 1/72 or 1"=6'-0" an engineer's scale (three sided like an architech's scale) simply use the side that is labeled "60" (the one foot incrment is of 72 labeled divisions) and measure the 1/72 scale drawing. It will measure feet and decimal fractions of a 1/72 scale foot. THEN switch to the 3 sided architech's scale and measure out with 1.5"=1'-0" (1/8 scale) directly on your model or new plan. Mentally switching from the decimal engineer's scale to the 1/8 scale (whch reads feet and inches is not hard once one gets into it. one could also make a 1/8 scale ruler big enough for the project with the first 1-1/2" divided into 10 equal spaces (.o1 to.o9)

There is always Kinko's. We once built a full size Gee Bee Racer from a 1/4 scale R/c plan, blown up 400% at the local Kinko's. Our Gee Bee was built for the LA county fair in 2003. It now resides at Planes of Fame Museum, Chino, California.

Here are a few shots of a project done to 60% scale I did from actual NAA drawings and lofts.
Last edited by packardpursuit; Apr 26, 2011 at 08:51 PM. Reason: added link
Apr 26, 2011, 09:25 PM
Registered User
thanks everyone for your ideas!!

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