Critique my portable superchunk design

I have devised what I think is an original design for a portable superchunk bass trap. Please let me suffer the slings and arrows of this highly educated forum to ensure that this wasn't a total waste! Also, the language was written for a DIY punk messageboard, so it may seem a little terse. To start, you will need access to the following tools: table saw (unless you're really good with a circular saw, and no you're not) circular saw measuring tape straight edge hammer or a air stapler / nail gun bread knife / electric carving knife probably a buddy to help you rip the wood And these materials: 4' x 8' sheet of 3/8" plywood (one for two traps) glue tacks / staples / nails / fasteners ONE 1" x 8" x 8' medium quality board (1' x anything really - this is ripped down to 1" x 1" to use a brace for the back corner of each trap) material to cover ONE case of Roxul AFBs for every 2.5 traps (doesn't really matter how thick, but the 4" is easier to work with IMO) 1) Rip the 1" x whatever board into one inch strips, and cut them to be just shy of 3' long. 2) Using the table saw, cut the 90 degree pieces as outlined in "superchunk_template.GIF". You should have 4 3'x2' pieces, and 2 2' square pieces. 3) Use the table saw to cut the square pieces in half at a 45 degree angle (corner to corner). 4) Glue and fasten the 1" square x 3' piece to the edge of one of the 3'x2' pieces, then glue and fasten another 3'x2' slab as pictured in the "joint.GIF" top-down view of the back corner of the trap. 5) Glue and fasten two of the smaller triangle pieces to each side of the trap to create a top and bottom. 6) Using a bread knife or electric carving knife, cut the Roxul into triangle shaped pieces. If you can't figure out how to cut them to the correct size, turn the knife on yourself. 7) Assuming you completed step six, jam the insulation into the traps, and cover the fronts with cloth. You don't have to do a good job hiding the folds on the sides because they will be against a wall or floor. These are meant to be placed in ANY corner. Using at least four will get you some pretty dramatic results, but if you couple them with broadband traps, then you will start to actually hear your speakers!

kevin kitchel wrote:

I have devised what I think is an original design for a portable superchunk bass trap.

Kevin, :twisted: That's more a novel. What's the use of a portable superchunk bass trap? Such a thing has a large volume, not directly practical for transport or storage if you need a number of them. I rather should use traditional framed (light but strong) thick absorption panels if I intended them to be transportable, which I then put in a corner. Note that the volume of superchunks is about 3 times larger than just panels straddling the corner. And the difference in absorption is very far from triple. If it's only to shift it away from a window or door, you can make a frame holding the chunks and put the whole thing on wheels. For the practical execution, it feels as you investigated this. In fact how you make this doesn't matter that much as long it's strong and stable enough and looks good.

Thanks for the feedback, Eric! This was spawned because I had all the materials around, and felt that some "non-permanent" superchunks would outperform the 4" traps that I had in my corners. It is a lot easier for me to add these then to build superchunks in the walls, and the benefit is that they are more effective than panel traps (even if its not by three orders of magnitude). Is it okay if I add your (unedited) remarks about these to the original board where I posted the design to act as a clarifier?

Kevin, It's OK, and success building them ....

Thanks again!