Melodeon.net Forums

Please login or register.

Login with username, password and session length
Advanced search  

News:

Welcome to the new melodeon.net forum

Pages: [1]   Go Down

Author Topic: Hohner Organette reed block  (Read 352 times)

0 Members and 1 Guest are viewing this topic.

Nick Collis Bird

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3309
  • Been squeezing melodeons for over 48 years (badly)
Hohner Organette reed block
« on: October 02, 2016, 04:32:54 PM »

Some of the gang may remember my Organette saga.
I had new reeds made in Czech Republic and because I changed the key fron C to D the wooden reed block is too small. I know a specialist cabinet maker but he was singularly unimpressed for making me one. I think it might have been beyond him!
  Then today Bingo! Well I hope so. A post from Sir John mentioned 3D printing. Now to all you boffins out there, as I have the original block is it possible to have it printed only slightly larger in parts ?
Logged
Q: How do you get a million Pounds £ ?
A: Set off with Two million and start a Fettling business.

IanD

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1330
  • Too many melodeons...
Re: Hohner Organette reed block
« Reply #1 on: October 02, 2016, 04:44:05 PM »

Some of the gang may remember my Organette saga.
I had new reeds made in Czech Republic and because I changed the key fron C to D the wooden reed block is too small. I know a specialist cabinet maker but he was singularly unimpressed for making me one. I think it might have been beyond him!
  Then today Bingo! Well I hope so. A post from Sir John mentioned 3D printing. Now to all you boffins out there, as I have the original block is it possible to have it printed only slightly larger in parts ?

Two problems -- the first is that most low-cost (hundreds of pounds) additive 3D printers can't do anything as long as a reed block, they tend to have smaller close-to-cubical build areas (e.g. 150mm on a side). The second is that the materials used (basically melted plastic of one type or another built up in layers) are neither as strong or rigid as wood, which doesn't make them a good choice for reed blocks. Basically they're a geeky but very expensive way of producing weak plastic widgets which look pretty (if you ignore the rough finish) but aren't strong enough to be useful in most cases.

Commercial 3D printers which use UV lasers to solidify polymer from a solution are better but much more expensive (thousands of pounds), but the results are still less strong and stiff than wood -- which is actually a pretty good material from an engineering point of view.

Then there are the 3D printers which use laser sintering of metal powder to produce properly strong high-quality complex gadgets, but these are way more expensive again (tens of thousands of pounds or more) and are used for things like medical implants or aerospace.
Logged
Oakwood Model 4, Castagnari Dony, Castagnari Tommy, Hohner Preciosa, Melos, Baffetti Binci, Lightwave SL5 and Ibanez SR505 basses, Yanagisawa baritone sax

Mike-T

  • Good talker
  • **
  • Offline Offline
  • Posts: 61
  • 1930s Hohner B C C#, Roland FR18 and others
Re: Hohner Organette reed block
« Reply #2 on: October 02, 2016, 06:10:18 PM »

P.M. sent Nick.
Logged

Nick Collis Bird

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3309
  • Been squeezing melodeons for over 48 years (badly)
Re: Hohner Organette reed block
« Reply #3 on: October 02, 2016, 09:42:24 PM »

Many thanks Ian. I was thinking more of getting a professional to do it rather than buy a machine.
I've Pm'd Mike T.
Logged
Q: How do you get a million Pounds £ ?
A: Set off with Two million and start a Fettling business.

IanD

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1330
  • Too many melodeons...
Re: Hohner Organette reed block
« Reply #4 on: October 02, 2016, 10:47:45 PM »

Many thanks Ian. I was thinking more of getting a professional to do it rather than buy a machine.
I've Pm'd Mike T.
As well as the cost to get the design done (the only cheap way is to do it yourself with one of the free 3D design programs, but this will take you a lot of time), you also need to think about the manufacturing cost which depends on the amount of the material (because this is time in the machine). I looked at getting something similar size to a reed block made and the cheapest quote I could find was around £50 -- and that was for the low-cost additive 3D printers, laser polymerisation was more than 3x this and I guess powder sintering would be more than 10x.
Logged
Oakwood Model 4, Castagnari Dony, Castagnari Tommy, Hohner Preciosa, Melos, Baffetti Binci, Lightwave SL5 and Ibanez SR505 basses, Yanagisawa baritone sax

Malcolm Clapp

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 856
  • Loving my Hohner-reeded wet MMM CastaTommy
Re: Hohner Organette reed block
« Reply #5 on: October 03, 2016, 12:56:54 AM »

Maybe I'm missing something here, but I would have thought that a set of reeds in D would/could have been made shorter than a set of reeds in C rather than longer?

Just curious....
Logged
Tuner/repairer, now retired, but still playing! Happy to offer advice on repairs etc., and might be persuaded to undertake the odd emergency job for local and longtime  customers.
Pages: [1]   Go Up
 


Melodeon.net - (c) Theo Gibb; Clive Williams 2010. The access and use of this website and forum featuring these terms and conditions constitutes your acceptance of these terms and conditions.