I've calculated a straight line mechanism for a 15cm straight line...(adsbygoogle = window.adsbygoogle || []).push({});

39% straightness over the cycle...

lengths came out to

L1 = 10.35cm

L2 = 4.14cm

L3 = 13.445 = L4

these values should give a 15cm line... so I went to go build the thing.. all the distances from each hole on each link are exactly those numbers I worked out... but the length of the straight line came out to 20cm.

the formulas are:

15cm/L2 = 3.623

L3/L2 = 3.25

L1/L2 = 2.5

Any idea why my model didn't work out to what it should of been....

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# Straight Line Mechanism

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