I already converted an original STL into a STEP model, but I’ve just noticed one small detail is missing: a simple set of "rails", the shape of an elongated cube that should sit on the part. All I need is for you to open the current STEP, add that cube in the correct position, and return the corrected file. You will receive: • The current STEP file • The reference STL showing where the cube belongs Deliverables: • Updated STEP file with the cube accurately placed and merged • (Optional) a quick STL export so I can double-check the geometry before sign-off It’s a quick touch-up, so as long as the cube matches the original dimensions and aligns perfectly with the rest of the model, we’re done. Familiarity with SolidWorks, Fusion 360, or any similar CAD software is fine—just use whatever lets you turn this around fast and clean.