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Approximate straight line motion consisting of one sliding pair

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+1 vote
in Machine Kinematics by (38.0k points)
Approximate straight line motion consisting of one sliding pair

(a) hart’s mechanism

(b) pantograph

(c) grasshopper mechanism

(d) peaucellier’s mechanism

I have been asked this question in a national level competition.

Query is from Forces Acting in a Mechanism in division Velocity in Mechanisms of Machine Kinematics

1 Answer

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by (106k points)
Right choice is (c) grasshopper mechanism

To elaborate: Hart’s mechanism is used to produce exact straight line motion mechanism.

Grasshopper mechanism gives approximate straight line motion consisting of one sliding pair.

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