I’m working on a small gear-driven mechanism for a camera panning rig and considering printing the 45° bevel gears in PETG (FDM). Tooth pitch is 1.5 mm, and the gears will be rotating slowly under low torque. My concern is whether layer lines and over-extrusion could cause poor meshing or increased backlash, especially since the gears need to run smoothly for accurate motion control. Would post-processing like sanding the teeth tips make a noticeable difference?