Ring Sled Design Discussion

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I agree with @ImpetuousWombat that:

@ImpetuousWombat

WIth a single bearing, there is a pivot point, and the bearing will pivot until overcoming any resistance to rolling on the ring. This can cause jerky motion. With two bearings, more of the force is applied to rotating on the ring, smoothing out the movement.

This is an issue because we want a straight line from the motor to the center of the router bit, and if the attachment point is pivoting around the bearing instead of moving it adds a “dog leg” to the path. It’s probably a pretty small effect, and the second bearing does add cost and complexity but I think it’s worth it.

@Edouard_Van_Belle

I’ve been working on the paper template idea and I think it’s a good one. Here’s what I’ve drawn up so far:

Are there any more features we would like to see?