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Enclosure Design & Construction
fiberglass 6x9
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<blockquote data-quote="Zerstorer" data-source="post: 521711" data-attributes="member: 555939"><p>MDF ring:</p><p></p><p>Couple ways to do this... two rings of half inch mdf. Make one the size of 6x9 and put screw holes in it (plus gasket) and then another ring, slightly larger, to get the speaker flush. Glue/screw them together and then fleece.</p><p></p><p>OR</p><p></p><p>Make one ring out of 3/4 mdf. Simplest, surest way.</p><p></p><p>As far as the layers of fiberglass, 2-3 layers after fleecing will be good. To attach the fleece to the existing panel, for a PERMANENT application, just use spray adhesive (no hot glue, unless you want lumps). Then soak the fleece in resin.</p><p></p><p>For rigidity and to get a good airtight bond, you might want to glass one layer on the doorpanel before you mount the mdf ring and fleece.</p><p></p><p>One problem you will encounter will be having to trim the excess... it would probably be easier to tape off everything, glass the back, mount ring/fleece, glass the front, and pull it out. Bondo+paint it, then you can permanently mount it in place (epoxy)</p></blockquote><p></p>
[QUOTE="Zerstorer, post: 521711, member: 555939"] MDF ring: Couple ways to do this... two rings of half inch mdf. Make one the size of 6x9 and put screw holes in it (plus gasket) and then another ring, slightly larger, to get the speaker flush. Glue/screw them together and then fleece. OR Make one ring out of 3/4 mdf. Simplest, surest way. As far as the layers of fiberglass, 2-3 layers after fleecing will be good. To attach the fleece to the existing panel, for a PERMANENT application, just use spray adhesive (no hot glue, unless you want lumps). Then soak the fleece in resin. For rigidity and to get a good airtight bond, you might want to glass one layer on the doorpanel before you mount the mdf ring and fleece. One problem you will encounter will be having to trim the excess... it would probably be easier to tape off everything, glass the back, mount ring/fleece, glass the front, and pull it out. Bondo+paint it, then you can permanently mount it in place (epoxy) [/QUOTE]
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