3a
as on
home page
The four fences shown below will suffice for many purposes.
| figure 3a as on home page |
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Greater variety is possible. The table below shows 25 ways that one end of a fence might be shaped. The other end is ghosted to minimize distraction. Drawn on a red background are concave shapes, which are anticipated to be less useful than the others.
Although not shown, the other end of the fence can of course have all the same shapes.
| angle of upper cut | ||||||
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| 30° | 60° | 90° | 120° | 150° | ||
| angle of lower cut | 30° | 
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| 60° | 
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| 90° | 
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| 120° | 
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| 150° | 
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