Linear-Motion FB

see Add Linear-Motion FB

See also : Run menu and toolbar

Linear-Motion FB

Linear-Motion FB has one parameter:

Output = Revs*MMA + MMA + A

a  : enter as a Irrational Number


MMA - Master-Machine Angle - increases from 0 to 360. Each complete cycle from 0 to 360 is 1 Machine-Cycle

Revs- number of complete Machine-Cycles.

Edit the Gearing FB


Edit the Linear-Motion dialog-box:

1.Double-click the Linear-Motion FB in the graphic-area.

- or -

Linear-Motion FB dialog-box

Default Output:

Master Machine Angle

Output Function:

One parameter:

Output  = MMA + 1r

Linear Motion FB dialog-box

Linear Motion FB dialog-box

Machine Angle +1s-red

A Real number to add to the Master Machine Angle

Output Options: 2s

Reset after one Cycle [default]
Output = Master Machine Angle + Value
Output = (Revs * 360) + Master Machine Angle + Value


Machine-Angle + 1s-red :

1r Positive[+]  : output is before, earlier, leads the Master Machine Angle

1r Negative[–] : output is after, later, lags the Master Machine Angle.

Accumulate or Reset after one Cycle :

Use 'Accumulate' to model a watch, or mechanism that does not have a motion-period equal to the Master-Machine-Angle.


Tutorial and Reference Help Files for MechDesigner and MotionDesigner 13.2 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd