Not sure if the pics showed up in the PM I sent you, so I'll post here as well.
Ok, here's some pics. The first one is how the mod sits on the bracket. At the moment, I just have it facing straight ahead, but I can rotate it about 160 degrees.
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This is off the bracket, it's just on screw that holds it on, so it's not real complicated. I used a grill lighter to heat the acrylic and make the bends.
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All you need is a strip of acrylic. Find the depth you want the mod to sit at and add about 2-3 in. at the bottom. This will give you enough room to bend the acrylic to the angle you want and leave room for the mod to rotate. Once you get the platform bent, mark the acrylic at the top of your tank. Measure the width of the top of your tank and mark that, plus 1/4in. so when you make the bend, it'll give you a little room to play. Then determine how far down the outside of your tank you want the bracket to sit.
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Next, you just need a small enough piece of acrylic as a base for your mod. I bought a stainless steal bolt and wing nut for this. I drilled the hole for the bolt, then used a counter sink so it would sit flush. I superglued the bolt into place, then superglued the plate to the bottom of the mod. I lined up where I wanted the mod to sit on the bracket and then drilled the hole for it.
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All you need to do now, is put the mod on the bracket, set your angle, tighten the wing nut and you're golden. You may want to put some rubber bands around the botom bend where the bracket sits against your glass and where it sits on the edge of your tank. Mine "walked" from one end of the tank to the other until I put the bands on.
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I hope this helps you for now. I noticed in the thread, you mentioned your mod is noisey. Give it some time to break in and it'll quite down. I can't hear mine anymore.