synth4Bar2Pose

by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - 4Bar/Linkages
Introduced first in SolidGeometry 2.8, Creation date: 2016-01-07, Last change: 2025-09-14

returns 4 points for a 4 Bar linkage

Description

2 Pose synthesis for a 4 Bar Linkage based on two specified poses: By describing 2 coupler poses by 2 points (C1-D1 and C2-D2) each, the two lines are constructed where the base frames A0 and B0 must be located. The coupler may have a fixed location relative to the links A0-A1 and B0-B1. Also it is possible to give an exact distance for A0 and B0 from the middle points mA and mB.

See Also: center3P , center4P , plot4Bar , calc4BarAngle , cross2circ , synth4Bar3Pose

Example Illustration

 missing image of synth4Bar2Pose(C1,D1,C2,D2,d,la,lb)

Syntax

[A0,B0,A1,B1,P12]=synth4Bar2Pose(C1,D1,C2,D2,[d,la,lb])

Input Parameter

C1: Coupler point C Pose 1
D1: Coupler point D Pose 1
C2: Coupler point C Pose 2
D2: Coupler point D Pose 2
d: distance from C1/C2/ to A1/A2
la: length from mA to A0
lb: length from mB to B0

Output Parameter

A0: Base link A
B0: Base link B
A1: End link A
B1: End link B
P12: Pole (A0=B0)

Examples

Try
synth4Bar2Pose([0 0],[5 0],[6 3],[10 0])
synth4Bar2Pose([0 2],[5 2],[0 5],[5 5])
synth4Bar2Pose([0 0],[5 0],[6 3],[10 0],[0 -1],0,0)

References

Kerle, H., Pittschellis, R. Corves, B. (2007): Einführung in die Getriebelehre, B.G. Teubner Verlag, 3. Auflage



Copyright 2016-2025 Tim C. Lueth. All rights reserved. The code is the property of Tim C. Lueth and may not be redistributed or modified without explicit written permission. This software may be used free of charge for academic research and teaching purposes only. Commercial use, redistribution, modification, or reverse engineering is strictly prohibited. Access to source code is restricted and granted only under specific agreements. For licensing inquiries or commercial use, please contact: Tim C. Lueth

Last html export of this page out of FM database by TL: 2025-09-21