I recently got a 1/2" acme screw for a project that has a deflection of approximately an eighth of an inch deflection. One would not think that it would be a big deal, but is is making alignment quite difficult on my project. Is there any way to straighten out a threaded rod?

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I've been able to manually straighten Acme leadscrew stock in the past by bending it down against a rigid surface, and checking its straightness by rolling it along a piece of scrap window glass (guaranteed to be flat). Rinse and repeat until you either bend it to within an acceptable tolerance, or you ruin it and have to buy a new one--which in this case is no big deal, since the one you've already got is already useless for your project.

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