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Product Description
This freelance harp switch stand has a very solid base. It is intended to be "animated scenery" for O Scale (1:48) train displays. It relies on the motion of the throwbar to shift the lever arm. It's not intended to be a manual switch throw for use with turnouts. It's provided with a lever arm but 0.020" x 0.060" brass stock can also be used.
Assembly instructions can be found here - http://www.fevercreekline.com/data/harp_guide.pdf
(Limitations in the 3d printing process preclude providing a target. These can be easily fashioned from suitably thin hobby materials.)