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An app for estimating the area of a paper model part
A polar planimeter simulator that can be used to estimate the area of a paper model part.
Polar Planimeter This is a simulation of ancient technology. |
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#2
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This brings back memories, I still prefer RPN over algebraic entry.
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#3
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Just curious, what is the reason for knowing the area of a part?
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#4
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Historically, The planimeter was used to measure the area drawn on a steam engine indicator card.
The measurement could then be used to determine the efficiency of the steam engine and indicate potential problems within the steam engine. If a paper model designer wanted to know the minimum number of pages which would hold the model, the sum of the areas of all of the parts would indicate the theoretical minimum number of pages which could hold the model. |
#5
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LOL Not in a real life! The area of parts versus area of the sheet...without considering the part shapes and how they can somehow be arranged on the page?
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SUPPORT ME PLEASE: PaperModelShop Or, my models at ecardmodels: Dave'sCardCreations |
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#6
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Dave got in 1st. I was also going to mention part shape vs size of sheet. Area of a part is one thing, but fitting the shapes together on a sheet is another thing.
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#7
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That is why I said, "theoretical minimum number of pages".
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#8
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So you can accurately estimate how much ink it will take to color the part. |
#9
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Antique tractor operators need them. Years ago, I used to see steam indicators at flea markets and 2nd hand stores fairly frequently, now I have not seen one for awhile. https://archive.org/details/descriptionofcro00cros This link goes direct to a PDF of a steam indicator user's manual https://www.google.com/url?sa=t&rct=...zbWvlcVKuGzMkG If you can find and build Ed Bertshy's paper stationary steam engine, you will need a steam indicator and planimeter to determine its efficiency and power output. https://www.youtube.com/watch?v=gdgu4rfjPug Last edited by John Wagenseil; 07-31-2018 at 11:08 AM. |
#10
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okay I wont ask anymore
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SUPPORT ME PLEASE: PaperModelShop Or, my models at ecardmodels: Dave'sCardCreations |
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