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Enclosure Design & Construction
Fiberglass introduction
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<blockquote data-quote="fbi90909" data-source="post: 4059358" data-attributes="member: 568679"><p>basically since you plan on doing a 5 sided box with a face of FG you would want to calculate it as a normal 6 sided box. when you get your dimensions you will have a set air space that you know will be in the box. by removing the baffle and fiberglassing it you will most likely have the subs being pulled out of the face to give the enclosure some curves which will add a little more air space to the enclosure.</p><p></p><p>well.. after you have the face of the enclosure fiberglassed solid take some cardboard and line it up onto the position where the baffle should have been to separate the set air space you already calculated and leave you with the front air space. like making a paper wall. well after you have the 2 air spaces separated take some of those mini foam pellets found in bean bags and fill up the front portion of the enclosure(the new air space). when filled find a 12x12x12 cardboard box which is 1cuft air space and dump the foam pellets fromt he air space into the box. mark your line of where the foam settled inside the box and then measure up the air space it's taking in that 1cuft box.</p><p></p><p>when you add the new air space to the existing air space you will get a pretty close estimation as to where the air space of the entire enclosure is w/o counting displacement.</p><p></p><p>now, if you over shoot your air space goals just take slabs of MDF, measure the pieces to calculate how much air space the slab is taking up and just place them on the walls of the enclosure or where ever.</p><p></p><p>I'd recommend you build the port last or use aero ports for your enclosure. cause with aero ports you will be able to adjust the port even after the box is complete with the estimated air space of the enclosure.</p><p></p><p>i hope i didn't confuse you. lol</p></blockquote><p></p>
[QUOTE="fbi90909, post: 4059358, member: 568679"] basically since you plan on doing a 5 sided box with a face of FG you would want to calculate it as a normal 6 sided box. when you get your dimensions you will have a set air space that you know will be in the box. by removing the baffle and fiberglassing it you will most likely have the subs being pulled out of the face to give the enclosure some curves which will add a little more air space to the enclosure. well.. after you have the face of the enclosure fiberglassed solid take some cardboard and line it up onto the position where the baffle should have been to separate the set air space you already calculated and leave you with the front air space. like making a paper wall. well after you have the 2 air spaces separated take some of those mini foam pellets found in bean bags and fill up the front portion of the enclosure(the new air space). when filled find a 12x12x12 cardboard box which is 1cuft air space and dump the foam pellets fromt he air space into the box. mark your line of where the foam settled inside the box and then measure up the air space it's taking in that 1cuft box. when you add the new air space to the existing air space you will get a pretty close estimation as to where the air space of the entire enclosure is w/o counting displacement. now, if you over shoot your air space goals just take slabs of MDF, measure the pieces to calculate how much air space the slab is taking up and just place them on the walls of the enclosure or where ever. I'd recommend you build the port last or use aero ports for your enclosure. cause with aero ports you will be able to adjust the port even after the box is complete with the estimated air space of the enclosure. i hope i didn't confuse you. lol [/QUOTE]
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