2D Dynamic

Click a flat face or an edge loop and it becomes a machined region — a face's inner loops stand as islands automatically. One pick button handles faces, edges, and sketch curves; hold Shift to build a chain edge-by-edge (it joins the cut the moment it closes). A green overlay always shows exactly the material the operation will clear, so there's no guessing.

Every region gets the same direction arrow as Contour: it knows which side the material is on — a pocket floor machines inside, a part's top face machines the stock around it — and one click on the arrow, or the ⇆ in the dialog, flips inside ↔ outside with the overlay updating live. When only one side makes sense, the arrow steps aside.

Flip a region outside and 2D Dynamic clears everything from that loop out to the stock edge. It knows the space beyond the stock is open air, so the tool enters from the air with no helix ramp — feeding straight into the material edge. Pick two bosses and both stand as islands in one continuous clearing pass.

Every pick knows its own depth: a pocket floor cuts to that floor, a pocket rim reads the depth from its walls, and an outside clear around a boss ends where the boss ends. Pick a −0.25" pocket and a −0.50" pocket in the same operation and each stops at its own floor, with its own stepdown ladder. The overlay sits right on the face you clicked, and the Bottom height always starts from your selection — override or offset it any time.

Drop an optional start point and clearing begins there — inside a pocket it places the entry helix; outside the stock it's where the tool first touches down. The same optimal-load control as the Router keeps the bite constant — percent of diameter or a fixed width, linked both ways — alongside helix entry diameter, ramp angle, path tolerance, and smoothing when you want the details. Multiple depth passes, stock to leave, and finish walls are all included. To clean up what a big tool couldn't reach, chain a Rest machining pass after it.