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ft rail system

  1. RotorBearron

    FT Rail System Confusion

    I'm building a spider quad using the Electro Hub and FT Rail System (short). What I'm not getting is how to keep the rail system from sliding. I've assembled it as shown in the pics - Thumb screw on top, rubber grommet on bottom. I've also tried swapping so the thumb screw is squeezing the...