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MMD > Archives > June 2026 > 2026.06.19 > 02Prev  Next


Aeolian Unit Valve Pouch Forming Tool
By Kevin Millecam 

I needed a tool like Bruce Newman used in his video to align and
shape the valve leather while rebuilding an Aeolian block valve:

https://www.youtube.com/watch?v=2iJOAC4sis8
Attachment thumbnail 
Player Piano Restoration - 1977 Aeolian with Plastic Unit Valves

Using FreeCAD and my 3D printer, this is what I came up with.
Hopefully these .stl files can help someone else.

Kevin Millecam

[ https://www.printables.com/model/1757150-aeolian-block-valve-vacuum-pouch-tool

(Message sent Thu, 18 Jun 2026 08:18:48 -0700, from time zone -0700.)

Key Words in Subject:  Aeolian, Forming, Pouch, Tool, Unit, Valve
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