Update on a 18" Ultimax sub box design
Previous design: https://www.reddit.com/r/diyaudio/comments/1sltowe/help_with_sub_box_design/
Taking some of the feedback, I've adjusted the design a bit:
- Moves the internal bracing back by an inch, so it's not so close up to the ventilation of the back of the sub.
- Remove the internal edge corner bracings.
- Adjust the internal bracing to reach more into the center of the back panel to increase its rigidity in that section. Looking at the image now, I might thicken the tapered tip and make it almost reach the other side. They won't be able to touch because The internal bracing panels need to slide into each other.
- added holes in the large triangle of the internal bracing.
- added small bracing to turn the four side panels from halves into quads. due to them being rectangular in shape, I can cut them all together with not have much wasted material.
- rotated the sub 22.5 degrees off axis so the, t-nuts don't intersect with any of the internal ribs.
- all the internal parts get 1/4" roundovers with a trim router.
Let me know if you guys see anything worth adjusting at this point. I've picked up MDF and will probably start cutting the panels up today or tomorrow. I didn't recalculate the internal volume, but it is probably very close to 6 cubic feet, like the original design.
I can upload the CAD design onto GrabCAD or some other place later if anyone is interested in building it themselves.