Making a trapezoidal shape out of a rectangular one?

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Krischu
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Making a trapezoidal shape out of a rectangular one?

Post by Krischu » Thu Jul 04, 2019 5:14 pm

In the attached drawing I roughly draw what I would like to achieve. Making little trapzoids out of the rectangle, because otherwise, when folding, these "ears" will be conflicting and get in eachothers' way.
Bildschirmfoto 2019-07-04 um 18.11.40.png
Bildschirmfoto 2019-07-04 um 18.11.40.png (50.26 KiB) Viewed 2275 times
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Christoph

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Husky
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Re: Making a trapezoidal shape out of a rectangular one?

Post by Husky » Thu Jul 04, 2019 6:56 pm

Husky-2019.07.04-02.png
Husky-2019.07.04-02.png (3.75 KiB) Viewed 2268 times

Depends on the drawing but this is done with ...
- the "Lengthen / Shorten tool for the horizontal lines,
- the "Tangent Point Circle" tool for the connection between horizontal line and radius,
- the "Break out Segment" tool to clean the transition between radius and line.

I recommend to do it once (lazy me!), copy it to the clipboard and use it for every needed situation.
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Krischu
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Re: Making a trapezoidal shape out of a rectangular one?

Post by Krischu » Fri Jul 05, 2019 3:04 pm

Thanks. Your solution, though looking nice, is not what I intended. The tangent to the half circle would be a perpendicular line. Think of these trapezoidal "ears" to be bent up by 90°. Then the tangent would result in an unwanted gap. It's a nuance, but important to me.
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Christoph

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Husky
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Re: Making a trapezoidal shape out of a rectangular one?

Post by Husky » Fri Jul 05, 2019 7:31 pm

Regarding to your example and assuming you will bend it to 90 degree then it should be a triangle and not a trapezoid.
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