Sure thing! First, let’s check the key steps. How do you trigger the lock? Is it a twist‑and‑click, a push‑button, or something like a sliding lever? If you’re using a twist mechanism, make sure the internal gears line up precisely—any wobble can throw off the whole sequence. For a click‑type lock, the timing of each click is critical; a slight delay can mis‑align the pins. Do you have a diagram or a list of the exact motions in order? If you send that over, I can spot where a small tweak could make the whole thing smoother.

Sounds solid, but I’ll need to see the sketch to spot any hidden gaps. Check that each gear tooth is exactly one‑tooth apart—if even a single tooth is off, the quarter‑turn will mis‑align the next step. Also, make sure the push‑button cam has a flat surface; a slight curvature can create a tiny play that screws the 90° push. Send the drawing and the step list, and I’ll flag anything that feels off.

I can’t actually see the sketch here, but if you describe the gear pitch and cam profile I can spot any subtle misalignments. Just give me the tooth count per gear, the angle of the cam curve, and the tolerances you’re working with, and I’ll tell you where the play might hide.