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Re: New arm design for Simpson style printer.

nicholas.seward Wrote:
-------------------------------------------------------
> Image may be NSFW.
Clik here to view.

>
> Here is a better visualization. Each movement
> consists of the red cam rotating 15 degrees and
> the arm ends moving 1 inch away from each other.

Hey Nicholas!


Now I'm sure, very sure...

... you are kinda crazy! Lol

Well, good job, now i'm hating you a little bit, haha. You are fast, fast. I'm struggling with the math and you have already simulated. I supposed you are not married, right?

Anyway, I figured out some properties of the sistem and I found that the solution gets very complicated when the arms are not of equal lenght. I ended up with something similar to your solution that is on the graph:

[attachment 17573 deltasolution.png]
Image may be NSFW.
Clik here to view.


With less words, the solution is the derivate of the equation that describes the change of lenght versus angle, and the other "gear" is just calculated to mantain the center to center distance, right?

By the way, how do you attach an image to be able to see it, without using services like Photobucket or so?

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