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Hello everyone,

I am trying to design a rack and pinion system. Usually I used to work with straight racks. Now I have a project that needs a curved rack. I attached some pictures and was wondering about your input on the matter.

Where should the rack go? (side, bottom or top?)

How to design the curved section (parallel to ground)?

How to design the curved section that has the inclination (parallel to the vertical plane)?

Screen Shot 2017-02-13 at 1.12.20 PM.png

Screen Shot 2017-02-13 at 1.12.26 PM.png

Screen Shot 2017-02-13 at 1.12.38 PM.png

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There is no such thing as a "curved rack." By definition, a rack is straight. It appears that what you intend is a sequence of racks and gear segments, joined in such a way as to present a continuously running tooth profile. Looked at in this way, I don't think it will be too difficult. You simply need to assure continuity of the tooth profile at the joints.

DrD

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