Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
6.5 in Car Speaker Slotted Adapter Ring
A 9 mm spacer ring that adapts an aftermarket 6.5 in speaker to a factory door or dash opening, so you don't have to buy a brand-specific adapter or hack the sheet metal. It is 178 mm across with a 140 mm through-bore. It has eight radial slots, all covering a 148–164 mm bolt circle. Four 3.4 mm slots take #8 self-tapping screws for the speaker. The other four are 4.8 mm slots for #8 screws into the door, counterbored 8.6 mm wide and 3.5 mm deep so the screw heads sit flush under the speaker flange.
50 mm Flared Bass Reflex Port Tube
Screw-in bass-reflex port for car-audio and home speaker boxes: 50 mm bore, 100 mm long, 45° flares at both ends, on a 96 mm flange. Drill a 73 mm (2-7/8 in) hole-saw hole in the baffle, then fix the port with four #8 wood screws through 4.8 mm clearance holes on an 84 mm circle. No more routing MDF ports, and it prints upright with no supports.