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Originally Posted by JVN
Any torque applied through THIS design, will cause the gears to try to disengage from each other. The only thing preventing this is the force of the pneumatic, holding the shafts together.
John
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Joe Johnson had said earlier that the design should be able to hold in gear just with the piston. If that was ever a problem you could always increase the bore size. With over 120 pounds pushing against it you can put some considerable torque into the shifter and under normal circumstances not have to worry about it disengaging. Matt had even said that he has a spring system in the workings to hold it in tighter, so if you were afraid of it comming out in low gear you could always reinforce it with springs.
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Originally Posted by Matt Adams
I most definitely do use #25 chain in this design, since it's loads are planned to be somewhat light.
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I believe the statement about the chain sizings was reffering to the final chain coming from the output shaft and powering the wheels.
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Originally Posted by JVN
I think you fail to understand what I'm saying, and the main principle behind my comment.
Unless you understand all the principles involved, and the design itself... which you've shown some confusion about... perhaps you should limit the broad statements you make about it?
John
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John, lets try to keep negative comments out of general discussion. The point of the thread is to express ideas and possible improvements to Matt's design and to TEACH people if they don't understand a concept. You could possibly explain something you feel is being misunderstood instead of suggesting the person not post ideas they may have. Undeserved comments should be kept in private, not on the forum discussions.
With the possibility of using multiple motors, you can still put this shifter as early in the transmission as you would with any other shifter. From my understandings Matt was trying to make a shifter for newer teams who do not have the machining capability that some of us have. No where has anyone said that the design was perfect, but you can always work in some additional support to the shifter to accomodate a more torquey drive to an extent.