Necessity is the Mother of Invention

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swillafew
5 valves
5 valves
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Joined: Sun Nov 22, 2009 6:20 pm
Location: Aurora, IL

Necessity is the Mother of Invention

Post by swillafew »

My rotor was sticking, and only when I had it apart did I notice the missing bumper. I can walk to Home Depot, and 3 dollars later, 1/4 inch vinyl tubing is my new bumper. It is not lovely but it works fine.

I have almost 10 feet of vinyl left for further replacement.
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Dan Schultz
TubaTinker
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Re: Necessity is the Mother of Invention

Post by Dan Schultz »

swillafew wrote:My rotor was sticking, and only when I had it apart did I notice the missing bumper. I can walk to Home Depot, and 3 dollars later, 1/4 inch vinyl tubing is my new bumper. It is not lovely but it works fine.

I have almost 10 feet of vinyl left for further replacement.
Using tubing... how did you accomplish the rotor alignment?
Dan Schultz
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
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swillafew
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Joined: Sun Nov 22, 2009 6:20 pm
Location: Aurora, IL

Re: Necessity is the Mother of Invention

Post by swillafew »

Play testing was as technical as that got. The horn is a Meinl Weston, it seemed as though the rotors were unaccountably easy to put in correctly.
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oedipoes
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Re: Necessity is the Mother of Invention

Post by oedipoes »

I have replaced the worn bumpers on my Norwegian Star Eb by pieces of a 7mm section diameter industrial NBR O-ring (shore hardness 70 I guess). I took the widest diameter O-ring I could find, so that the round shape is neglectable for short pieces.
Trimmable with a sharp hobby knife, will not wear out in the next XX years I guess.
Alignment was almost perfect before trimming, so I was lucky.
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