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Originally Posted by Max Lobovsky
If you would be ok with using a cylinder with significantly the force that you actually need, you could wrap the chain part way around the sprocket with one end connected to the piston and the other end connected to a spring with a fixed mount. You would waste a lot of force (half the force?) tensioning the spring.
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yes. i think thats a easy way. and then ill have to do sum math about the force of our cylinder. ill look into it. thanks!
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If you only need 140 degrees of motion, a better solution is probably to attach the cylinder to a spool of some sort with a cable. If i'm not mistaken, the maximum amount of force the cylinder produces will be applied through the whole 140 degrees as opposed to using a fixed linkage (like a cam).
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uhh. cant quite picture it. sorry. a simple paint sketch might help me. sorry im incapable.
and then i have to add, i want this compact.
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There is a chain that has mounting points on it. From there you could bolt the chain to the piece of angle aluminum.
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i doubt we are allowed any other kind of chain than the "normal" ones. sorry. OCCRA rules are pretty tight. thanks for the reply tho!