Concrete Filled Tang Band W3-1876S Subwoofer Enclosure

thingiverse

This is a unique blend of both HexiBase and zx82net printable subwoofer enclosure designs, optimized to be printed in one piece and filled with concrete for enhanced rigidity and reduced filament usage. The port is strategically located on the front, while one side remains flat for convenient standing use. With my current settings, this design yields a 48-hour print that consumes approximately 300m of 1.75mm filament, weighing less than one kilogram. A minimum 200x250mm print bed size is required to accommodate this design. Once printed, route cables through the provided holes in the enclosure and secure it on a flat surface. Next, pour concrete into the mold and gently vibrate to ensure proper settling. As the concrete begins to set, smooth out any surfaces for a sleek finish. I'm currently printing this model, so additional photos will be shared within a few days. To optimize print results, I recommend flipping the model over before printing to activate the integrated support features. 2019-09-27 My initial print attempt failed due to layer shifting, likely caused by added weight on the Y-axis. Although the concrete-filled mold also failed, tapping on the walls created cracks when it was filled with heavy concrete. Lessons learned from this experience include: Reduce print speed and acceleration to prevent layer shift. Sift sand thoroughly to remove larger rocks that may hinder even concrete distribution. Gently vibrate the mold instead of tapping on its sides. Cover all external surfaces with masking tape before adding concrete for a neater application. Pour concrete while the print is still attached to the flexible print bed for a watertight seal at the bottom. This method might be challenging to achieve with a glass bed, however. Use a sponge to level the surface of the concrete. 2019-10-03 My second attempt was successful, and soon I'll be wiring up the speaker for thorough testing once it arrives. 2019-10-22 I've added SPL and impedance measurement data to this design for enhanced accuracy.