Thang010146 - MCCSOLR Kinematic Diagram
This is an answer to a problem which arose in the video "Milling convex circular surface of a large radius" by Thang010146. The video can be seen here: https://youtu.be/U-s8wlhxcnE
The problem: Is the milling surface actually a circular arc?
Answer: Well... no, but also yes.
For all configurations of the mechanism, no. The arc it produces is an approximation of the circle, but is rather a limaçon. However, within the family of limaçon curves do exist circles!
For this mechanism to produce a circle, the milling points must meet up at the point of intersection between the two blue guides. Hopefully this settles it...!