About this 3D model

See https://docs.google.com/spreadsheet/ccc?key=0Aj4tonrQxb3fdHl4ZGJrWF9KZE5qcnEyM0w3SDA0WGc&usp=sharing for more numbers. I'm taking measurements of my mouthpieces with calipers. I don't really like how long the cup is relative to the back pipe; I don't think the parameters work particularly well for tuba mouthpieces, but we'll see. Update: turns out that the cup depth is the inner depth, and I measured the outer depth. I'm going to get some modelling clay to see if I can take a mold of the inside, then I should be able to directly measure the cup depth and the throat diameter. Customized version of http://www.thingiverse.com/thing:44422 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=44422