Building Rotary Valves

windshieldbug · Post by **windshieldbug** » Sun Nov 27, 2005 1:12 pm

mmmmm, rotary valves, alalalalgh!!!

ufoneum · Post by **ufoneum** » Sun Nov 27, 2005 7:13 pm

LV wrote:Whoever is now setting up webpages for Dan is dropping the ball when it comes to non-MS browsers. I take it Fritz was doing it?

Edit: I DO bet those are some d*mn nice valves, though...

For MAC users - use Safari, not Firefox. I know it sucks, but w/ MS compat., it works sometimes.

- Pat Stuckemeyer

Daniel C. Oberloh · Post by **Daniel C. Oberloh** » Sun Nov 27, 2005 8:42 pm

I shared the page with harold in a recent e-mail knowing he would find it eye-rolling if not interesting. Even though I grumble about it, I do enjoy stretching my skill level regularly and this is one of those exercises. The rotors are hallow because it was (for me) a less technical approach then fabrication from solid bar stock in the mill with the indexer. The casings are cylindrical (not tapered) and are honed using a keyway mandrel to allow for closer valve tolerances in the .0001'' range. The rotors being cylindrical can be much tighter and in order to do so accurately are externally honed. The fixture for the rotor to be mounted on the hone was fun to dream up and was a very satisfactory tool for the job.

I modeled the valve design off the King double open end rotors used on some of there older base trombone designs and the modern schmid french horn rotor that is also open ended and cylindrical. I have yet to find time to complete the end-bearing, threaded top-rings and bottom caps but should be able to do so in the near future. The stop arms and stop plates fabrication will soon follow. Oh yeah, bloke, the real old Lidl tubas also had hollow rotors.

I am sorry about the browser issues, what ever they may be.

I was not really ready for ithe page to be viewed publicly and had not intended to show this stuff until maybe a later time when the build was completed. The images had been accumulated on a page for a customer who had an interest in the project. Fritz had nothing to do with the page, it was thrown together by me. Please excuse the fact that I am not a computer guy like so many of you on TN.

Rest assured that I will have the page edited and squared away should I decide to build it into a true and complete page in the oberloh.com website gallery. Still, I am glad a few of you found it of interest in spite of its flaws.

Its always good to get feedback and ideas from the folks on TN for future web page content. Feel free to share you thoughts. Thanks!

Daniel C. Oberloh

Technician to the stars (Floyd and Emma Starr of Hump Tulips, WA)

Oberloh Woodwind and Brass Works (Seattle)

ThomasDodd · Post by **ThomasDodd** » Tue Nov 29, 2005 2:15 pm

Daniel C. Oberloh wrote:I am sorry about the browser issues, what ever they may be.

Simplest fix would be top add an extension to the file name

like http://www.oberloh.com/gallery/rotaryva ... npage.html

BTW, your site has had this problem before.

Another fix would be at the server, and set the content type to "text/html" instead of "text/plain"

Until then, users with difficulty can save the file as rotaryvalvefabricationpage.html
Open it in a text editor, use Find/Replace to replace

Code: Select all

src="

with

Code: Select all

src="http://www.oberloh.com/gallery/

and load that file in the browser.

(or I can email you the edited file)

Joe Baker · Post by **Joe Baker** » Tue Nov 29, 2005 3:34 pm

Daniel C. Oberloh wrote: Please excuse the fact that I am not a computer guy like so many of you on TN...

I wish my instrument repair skills were as good as your computer skills, or that my computer skills were as good as your instrument repair skills!

Thomas had it right; just save the page with ".htm" or ".html" on the end, and it will work with other browsers. And thanks for sharing your pics. It's amazing to look at some of this stuff!
______________________________
Joe Baker, whose instrument repairs generally involve some sort of tape...

Daniel C. Oberloh · Post by **Daniel C. Oberloh** » Tue Nov 29, 2005 4:06 pm

Sorry about the error.

I went in and took care of my â€œscrew-upâ€

Joe Baker · Post by **Joe Baker** » Tue Nov 29, 2005 4:17 pm

... so the new URL is:

http://www.oberloh.com/gallery/rotaryva ... onpage.htm

windshieldbug · Post by **windshieldbug** » Tue Nov 29, 2005 4:21 pm

Daniel C. Oberloh wrote:If I spent more time studieing how to opperate the computer and navigate the web, maybe I could avoid looking like such a rookie

Don't even think about it!!!
Mike "There are very FEW people who could even attempt building valves like that but every junior high is full of computer geeks these days who can just tell you" Keller

ThomasDodd · Post by **ThomasDodd** » Tue Nov 29, 2005 4:58 pm

windshieldbug wrote:
Daniel C. Oberloh wrote:If I spent more time studieing how to opperate the computer and navigate the web, maybe I could avoid looking like such a rookie
Don't even think about it!!!
Mike "There are very FEW people who could even attempt building valves like that but every junior high is full of computer geeks these days who can just tell you" Keller

Agreed.

Dan, don't worry. You'll catch on someday. I've been doing HTML since the Mosaic days, before any GUI "webpage designer" tools existed. Untill then the rest of us will help a little with the web stuff, and be awed by you craftsmanship. I can only dream of having you work on my horn, let alone being able to do such work.

:ideas:
Hey Dan, what would one valve like that cost? Say 0.660" bore, and larger, more normal tolerances.

Using some old casing and knuckles to get the caps too.