Drawing Lemniscate mechanism 2

Input: blue crank.
Output: a point on the axis of the pink slider traces a Lemniscate.
Dimensions:
Blue: a
Distance between stationary points: b, such that b is greater than a
Yellow: c, such that c is greater than b
Orange: sqrt(a*a - b*b + c*c) + sqrt(a*a - b*b + c*c)
If the size of the orange is different, the two petals of Lemnisctate are not the same.
The inventor of this linkage is Arglin Kampling:
https://youtu.be/61rI5U13Bfc
Thanks to the inventor for providing me the linkage dimensions.

Inventor files of this video:
https://www.mediafire.com/file/v34oqo191djjt9b/DrawingLemniscate2Inv.zip/file

Видео Drawing Lemniscate mechanism 2 канала thang010146