Steve, custom horns are made in very limited numbers <<custom>>, means in small series, with a lot more effort on controlling, which means, there is a lot more of working hours. So the cost increase. This is the one cost increasing factor. The other is the constructing of the hollow rotor, which is not done by maschining. As Dave said, they are made of tubes & plates. Preparing the bigger tube with the plates on both sides & the axle going through is enough delicate work, but inserting the bent tubes going through the holes is a real mess. Soldering these tubes is another mess, followed by machining the whole thing so it runs smoothly in the casings is a big mess.
The result ? They thought these rotors would be lighter in weight then those made from solid stock, but fail. They resulted in lesss weight of few , very few grams. The machines did not run much faster, the horn was not much lighter on weight. But the working effort was too high. So they discontinued this model soon. And, is it necessary that the valves run that quickly, as most players have difficulties following the music in time anyway ? So regular valves are fast enough, if they work properly. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steve Freides Sent: Saturday, January 21, 2006 11:08 PM To: 'The Horn List' Subject: RE: [Hornlist] Recent updates to hornplayer.net (21st January 2006) Ah - sounds like one of those "a lot more cost for a little more benefit" sort of things. Not that that's necessarily bad, of course. Good to know, and thanks very much. -S- _______________________________________________ post: horn@music.memphis.edu unsubscribe or set options at http://music2.memphis.edu/mailman/options/horn/archive%40jab.org
