Showing posts with label chicago. Show all posts
Showing posts with label chicago. Show all posts

Tuesday, September 4, 2007

Concertina Progress

Some of the woodwork is finally done. Here are progress photos:

Treble end:

The edges have been routed to receive guitar bindings. Unfortunately the router took off some chips of the surface veneer which will have to be repaired before the bindings can be attached. Holes on front will receive grommets.

Bass end:


Bellows frame:


Treble end with bellows frame, handle and palm rest (mock-up).


Valveboard:


Treble valveboard & reedblocks (mock-up):


Bass valveboard & reedblocks (mock-up):

Thursday, March 22, 2007

The concertina project so far, part 1

The project began in 2000 with the closing of Star Concertina in Cicero, IL. Much dreaming ensued about carrying on the tradition of [Chemnitzer] Concertina manufacturing in Chicago.

A bit of tinkering with old boxes followed.

Some conversations were had with John Bernhardt:
  • What was done by Star in-house.
  • What was outsourced.
  • How some construction details were realized.
  • Where materials were sourced.
  • The marketplace for concertinas and the place held by Star, Hengel, Echo, etc. in the market; also the nature of buyers in Chicago vs. Wisconsin, Minnesota, etc.
Some old parts were purchased from Bill Brown:
  • Reed sets removed from instruments that had been converted to his "Buttontina" product.
  • Threaded brass bushings (with nuts) for key lever pivots. (Turned out to be long: They must be cut down on a lathe to be useful.)
  • L-screws for reed plates in a "pin" reed instrument (smaller than the ones used for long-plate reeds).
  • Grommets for "sound holes" at front of instrument.
Some experimentation with various action arrangements and CNC manufacturing techniques was done:
  • Wood (solid, aircraft plywood).
  • Sheet plastic.
  • Molded plastic.
  • Wire (similar to some English-construction concertinas).
  • Various bushings and pivot methods.
Some experimentation with reedblock arrangements and CNC manufacturing techniques was done.

Suppliers were located for materials.