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Turn orange screw to move yellow bars radially for centering a coil (in glass). Then the coil is turned for uncoiling. A brake drum on the pink shaft end is for creating uncoil tension. Here are applied ellipse mechanisms (yellow bars and blue hub, green conrods) to convert linear motion of the blue hub into linear motion of the yellow bars. Parallelogram mechanisms are used for supporting yellow bars. This uncoiler is for coils of small width. STEP files of this video: Inventor files:
