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Question #: 1138

Question: I am getting a certain amount of offset on my 2nd machining pass on my blackfoot. I am preparing to go back and make sure everything is tight, however is it possible to overtighten the chains and sprockets. Is there a general rule of thumb to increase rigidity?

Current Solution

The chain should be tensioned the same on both sides, and you should have some slack and not have it too tight. The bearings should be tightly secured as well. There is another probable cause, which is the rod, where the sprocket is tighten to. Since the rod is circular the sprocket screws, cannot securely tighten the rod, which you can file where the 2 screws rest to have a flat surface or if you have a welder you can tack weld the sprocket to the rod.


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