BOSE 101 / 151 Adjustable Wall Mount Bracket

This is a 3D printable adjustable wall mount bracket for BOSE 101 and BOSE 151 Music Monitor speakers.The mount uses a two-plate articulated design with fixed horizontal angle positions at 15°, 20°, 25°, and 30°.Each bracket joint is mechanically locked using one M8×35 bolt with nut, plus two M3×30 bolts, ensuring a strong, vibration-resistant connection.The speaker is attached to the bracket using a standard 1/4-20 × 1" bolt, matching the original BOSE mounting thread. I advice using 4 pieces of steel 1/4-20x1" Bolts to connect speakers to the bracket.If you can not find imperial size bolts in your region you can use the modeled bolts on the second pate at your own risk. The second plate includes a "1/4-20x1" Bolt Model". There is a 1mm diameter reinforcement hole that allows insertion of a 1 mm steel rod (paper clip or needle), improving resistance to shear forces and long-term durability. A wall drilling template is included to ensure accurate and repeatable wall