• FAQ  • Search  • Memberlist  • Usergroups   • Register   • Profile  • Log in to check your private messages  • Log in 

Toothpaste For Sticky Valves


Goto page Previous  1, 2, 3
 
Post new topic   Reply to topic    trumpetherald.com Forum Index -> Horns
View previous topic :: View next topic  
Author Message
Bob Stevenson
Heavyweight Member


Joined: 04 May 2005
Posts: 1113
Location: Essex, England

PostPosted: Tue Sep 11, 2018 11:12 pm    Post subject: Reply with quote

Abraxas,......From your last post and semi obscure Greek mythological username, can we infer that you are a school music teacher?
Back to top
View user's profile Send private message
Abraxas
Veteran Member


Joined: 31 Jan 2018
Posts: 236
Location: London, Canada

PostPosted: Wed Sep 12, 2018 7:11 am    Post subject: Reply with quote

Bob Stevenson wrote:
Abraxas,......From your last post and semi obscure Greek mythological username, can we infer that you are a school music teacher?


No. Perhaps of greater merit to the discussion at hand, I am a licensed machinist (military and civilian), a graduate electronics tech and a couple years University chemistry, but did not finish my degree. I've worked with abrasives and metals extensively in my first incarnation and continue to do so in the shop I built.

I thought Abraxas was Spanish.
Back to top
View user's profile Send private message
Brad361
Heavyweight Member


Joined: 16 Dec 2007
Posts: 6537
Location: Houston, TX.

PostPosted: Fri Sep 14, 2018 7:20 am    Post subject: Reply with quote

yourbrass wrote:
James Becker wrote:
OK, I'll chime in again.

NOT ALL LAPPING COMPOUNDS ARE CREATED EQUAL.

Traditional pumice as presented in the Eric Brand Repair Manual is old school. There's little control over the grain size, so results can vary widely.

Silicon carbide compounds are made in a variety of grits, but embed in the metal. And because they're non-fracturing, continue to cut if not completely removed.

The compounds we choose to use come in a variety of grits allowing for a variety of final clearances, from ultra-fine to coarse. These are non-embedding so they can be cleaned out easily, and are self fracturing making them finer as they're worked.

When in doubt, consult a professional. Cue up Carly Simon's "Nobody Does It Better"....

My two cents.


Your 2p. is worth hundreds of dollars if at least one person reads and understands it. Players should NEVER use abrasives of any kind on their instrument.


I agree with both posts. Call me a chicken (or worse; it would not be the first time), but because I HAVE NO TRAINING, I don’t do much DIY on my horns beyond regular “baths.” Just because something like toothpaste on valves has “been done for years” doesn’t necessarily mean it’s a good idea, maybe it is, maybe it’s not.
Just my opinion(s).

Brad
_________________
"I always try, but not always, because the horn is mercy-less, unpredictable and traitorous." - Arturo Sandoval
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    trumpetherald.com Forum Index -> Horns All times are GMT - 8 Hours
Goto page Previous  1, 2, 3
Page 3 of 3

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group