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<blockquote data-quote="bigbang" data-source="post: 3225551" data-attributes="member: 576408">With a little research, do away with the two 180 degree bends. Do two L bends instead. It is better for air movement. I would recomend doing away with one of the teal pieces and the violet piece. Instead, make a piece 20.5&quot; long and a piece 7&quot; long. Have this long piece sit between the teal piece and this short piece. Do a bend at the upper left corner and a bend at the upper right corner. This design will maintain your 2.75&quot; opening and have the same length.Also, when you get your wood cut at lowes, have them set the blade horizontal. This way, the blade is a fixed length from the bottom vs the dude marking your wood with his ruler and having everything be a fraction of his judgment off. Strart with a couple 13.75&quot; by 8&#039;strips for the sides, front, back, and slot port sections. After words have them cut these strips to shorter lengths again keeping the blade horizontal. I know it sounds confusing, but hear me out and will have everything meet up without gaps. Almost every cut you need comes in multiples of two, so keep setting the saw hieght and knocking out pairs until you cut the oddball port lenghts. Trust me, I&#039;ve had lowe&#039;s help me on my share&nbsp; of boxes, and refrain as much as possible from veritcal cuts. Yes I have alot of time on my hands, thats what happens when you break up.</blockquote>

[QUOTE="bigbang, post: 3225551, member: 576408"] With a little research, do away with the two 180 degree bends. Do two L bends instead. It is better for air movement. I would recomend doing away with one of the teal pieces and the violet piece. Instead, make a piece 20.5" long and a piece 7" long. Have this long piece sit between the teal piece and this short piece. Do a bend at the upper left corner and a bend at the upper right corner. This design will maintain your 2.75" opening and have the same length. Also, when you get your wood cut at lowes, have them set the blade horizontal. This way, the blade is a fixed length from the bottom vs the dude marking your wood with his ruler and having everything be a fraction of his judgment off. Strart with a couple 13.75" by 8'strips for the sides, front, back, and slot port sections. After words have them cut these strips to shorter lengths again keeping the blade horizontal. I know it sounds confusing, but hear me out and will have everything meet up without gaps. Almost every cut you need comes in multiples of two, so keep setting the saw hieght and knocking out pairs until you cut the oddball port lenghts. Trust me, I've had lowe's help me on my share of boxes, and refrain as much as possible from veritcal cuts. Yes I have alot of time on my hands, thats what happens when you break up. [/QUOTE]

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