The absence of backlash makes this parallel coupling a precision, lowcost
replacement for gear or chain drives that can also rotate parallel
shafts. Any number of shafts greater than two can be driven from any
one of the shafts, provided two conditions are fulfilled:
1. All cranks must have the same length.
2. The two polygons formed by shafts centers on the moving and
grounded frames must be identical.
The main disadvantage of this mechanism is its dynamic unbalance. The
moving frame should be made as light as possible. The mechanism can not be used for
high speed.
I would like to hear what you think...suggestions and comments are welcome!
Thank you!
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