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Satellite TV receivers & systems support forums
Fringe Reception General
Anyone tried to make BIG dish at home?
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<blockquote data-quote="archive10" data-source="post: 989262"><p>In theory, dead simple.</p><p>You're showing a prime-focus dish made of mesh on a metal framework. I assume this is what you want to make.</p><p>(if you were going to mold your own dish using fibreglass and resin on a concrete mold, it would we slightly different).</p><p></p><p>The shape of the metal profile required is a parabola, so all you need is to calculate a shape that is paraboloid, and make this into a metal profile.</p><p>If you have access to CNC equipment, get someone to machine the metal profiles for you.</p><p>If not, do as in the Lexzie-posted instructions and map something out using paper and pen (and calculator).</p><p>Then, cut the metal as required.</p></blockquote><p></p>
[QUOTE="archive10, post: 989262"] In theory, dead simple. You're showing a prime-focus dish made of mesh on a metal framework. I assume this is what you want to make. (if you were going to mold your own dish using fibreglass and resin on a concrete mold, it would we slightly different). The shape of the metal profile required is a parabola, so all you need is to calculate a shape that is paraboloid, and make this into a metal profile. If you have access to CNC equipment, get someone to machine the metal profiles for you. If not, do as in the Lexzie-posted instructions and map something out using paper and pen (and calculator). Then, cut the metal as required. [/QUOTE]
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Fringe Reception General
Anyone tried to make BIG dish at home?
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