A bar-and-joint framework is a planar structure made of fixed-length bars connected by universal joints with full rotational freedom. We extend this model to bar-slider frameworks in which some of the joints are constrained to move on a line, rigidly attached to the plane, much like a slider joint in mechanical engineering. A bar-slider framework is pinned if it is completely immobilized. We give a combinatorial characterization of generic pinned bar-slider frameworks. Joint work with Ileana Streinu.