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Author Topic: CAD / 3D Bell Model  (Read 260 times)
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Wasatch Oz

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« on: Dec 06, 2017, 02:24PM »

This is a far out, crazy question, but you never know unless you ask.

I'm looking for an accurate full length CAD / 3D Model of a Bach 36/42 bell.

Has anyone ever seen anything like this before?
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LowrBrass

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« Reply #1 on: Dec 06, 2017, 08:14PM »

You asked if we'd seen anything "like this"; this is not quite what you're asking for, but it may give you some fun leads--

(1) Pieter had a whole thread going about 3D-printing a trombone. His designs are available on GitHub (https://github.com/pieterbos/PrintBone), but they're based on "the model of a trombone with bessel curves published in the PhD thesis of Alistair C.P. Braden, Bore Optimisation and Impedance Modelling of Brass Musical Instruments, University of Edinburgh, 2006." It fits a Bach 42 slide, but is not an accurate Bach 42 bell. The leadpipe is "inspired by" a Conn 88H.

(2) Significantly less useful, but when else will I get to share this bit of trivia?-- My third ever 3D assignment was to photograph an object from all angles and model it using NURBS. Of course I did my trombone. So I have an old Maya file of a Bach 36 somewhere, but it is inaccurate, not to scale, and probably of no use to anyone.
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Wasatch Oz

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« Reply #2 on: Dec 06, 2017, 09:00PM »

This is a nice, interesting lead, thanks!
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jimkinkella
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« Reply #3 on: Dec 07, 2017, 04:49PM »

I could do a flare for you tomorrow, if that would help.

Jim
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Wasatch Oz

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« Reply #4 on: Dec 07, 2017, 05:07PM »

Jim,

I just sent you an email.
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