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Thread: Routing odd 3D shape
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9th October 2012, 03:38 PM #1Senior Member
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Routing odd 3D shape
Hi All,</SPAN>
Just looking for some advice from those with a bit of experience under their belt on how to route unusual 3D shapes. The magnet in the attached photo weighs 15Kgs and I would like to make an acrylic stand for the driver (to go inside a clear acrylic box), so the driver is supported entirely by the magnet (lower driver resonance). Because it curves in all directions I was just wondering if it is possible to do or if I should perhaps be looking to show how cast a stand for it. Thanks in advance. I vaguely remember someone mentioning a mouldable plastic…</SPAN>
pro-5100_large.jpg
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9th October 2012, 03:54 PM #2GOLD MEMBER
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If I was routing that shape, this is what I would do.
1. Measure - you need a really well done contour pattern of the shape.
2. drill - use a drill press to drill holes into the material following the contour pattern and using the depth stop to stop the bit just short of the required depth. I would guess that a larger bit would remove more material more quickly, but a smaller one would do a finer job. Pay your money take your choice.
3. Rout/carve - use the router (or chisels etc) to remove the waste. You would need to do a very careful freehand, or use a lot of patterns based on your contour pattern and making sure you get the depth right.
4. sand - you will end up with a series of terraces that you will need to sand smooth.The other day I described to my daughter how to find something in the garage by saying "It's right near my big saw". A few minutes later she came back to ask: "Do you mean the black one, the green one, or the blue one?".
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9th October 2012, 06:45 PM #3Senior Member
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I took a few more photos and did a SketchUp model based on the dimensions to see if I could calculate the angle, which I figure to be about 12 degrees. The sides seem quite straight like it was machined prior to painting.
So perhaps this may not be as hard as I first thought...
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9th October 2012, 07:38 PM #4Senior Member
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Here a better idea of what I am trying to achieve... if I used 10mm thick clear acrylic it might need 4 pieces side by side to get a width of about 40mm
The green bits would be the clear acrylic.
Speaker Mount.jpg
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