Tuesday, March 23, 2021

Oblique locked crossings

When weavers cross at a non-perpendicular angle, they can still be locked using four notches in each weaver.
And they engage in the same manner as for a perpendicular crossing.
The centers of the engagement windows no longer form a square (as they do at a perpendicular crossing) but a rhombus. When the notches terminate in a circular radius, the circle centers do not form a rhombus, rather a parallelogram.
The acute angle of parallelogram (and thus the acute angle of the weavers crossing) ends up being a little wider than the acute angle of the rhombus. In the diagram above, 33 degrees vs. 30 degrees in terms of half-angles. The bottom line: we can program oblique locked crossings with same shape notches used for perpendicular locked crossings, we just need to make some adjustments in their positioning along the length of the weaver.

1 comment:

  1. wonderful to see this - Beautiful and inspirino as ever! Thank you so much, Alison.

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