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Helix Arc Length
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11-29-2018, 08:45 AM
(This post was last modified: 11-29-2018 12:36 PM by ijabbott.)
Post: #2
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RE: Helix Arc Length
Hint: a cylinder is flat if you unroll it. So for a single turn, the length is SQRT((2*PI*R)^2 + L^2), where R is the radius of the cylinder (helix) and L is the longitudinal separation (or "lead") between turns. Multiply by the number of turns N for the total length.
EDIT: Since you mentioned the diameter, you can of course replace 2*PI*R with PI*D in the above. Or if 'D' is the inner diameter of the helix, and 'W' is the diameter of the wire, you can use PI*(D+W) — Ian Abbott |
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Helix Arc Length - ArPEn - 11-29-2018, 02:56 AM
RE: Helix Arc Length - ijabbott - 11-29-2018 08:45 AM
RE: Helix Arc Length - Nigel (UK) - 11-29-2018, 09:22 AM
RE: Helix Arc Length - ArPEn - 11-30-2018, 03:10 AM
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