Building of a Mini Organ       

The Mini organ is a model organ whose pipes have a real organ tone. The parts show in small size how this part works in a large organ. There are small pipes with a real sound, a miniature wind chest to place these pipes, a keyboard to play the pipes.

I provide the drawings free of charge for people who also like to build mini-organ. Since technical drawings are not read by anyone, I have drawn all the parts in perspective, with the clarity of the photos. This allows everyone to immediately understand how to build it.

Its construction is so simple that children over the age of 12 have also built this mini organ. The booklet with the drawings for the construction of a mini organ I provide free of charge. Anyone who requests it with their name and postal address will receive it free.

Organ pipes

Making pipes is not difficult if it is well explained. Detailed drawings of each part are provided. The construction method has been applied for years and can hardly fail.

The Stopped Diapason I described in several books is also used here. For this mini-organ I have designed a scale that lends a full deep sound to the small pipes.

These are pipes where the top is closed by a stop and thus the pipes can be tuned.

Wind supply

The cost of the material for the mini-organ is low and the simplicity of the design makes it possible that everyone can build it. Such a small organ does not need bellows. The pipes are located on a wind chest and the player himself, makes the wind pressure himself (herself) if he (she) blows over a hose pipe in the wind chest.

The Hohner Melodica - with accordion reeds - works in same way. It is also possible with a small and cheap fan as the centrifugal fan of Conrad,  order number 570095-62 (€ 29.50). You will need an adapter 230 Volt to 12. Because of the noise of the engine, a damping box is needed.

Miniature Pipe Organ 32 cm high 18 cm wide

The mini-organ is 32 cm high and 18 cm wide. The construction is simple, but it has all features of a large organ. There are few cost for the material of this organ.
I've used oak for the walls, but each type of wood is suitable according to the preference of the manufacturer. The pipes are made of 3 mm wood; Oak, Pine, Pear, Red Cedar are some suggestions. The sound is not depending on the type of wood. Expensive parts are not used in this small organ.
           The construction of a pipe is shown here step by step

The mini-organ has a keyboard, a wind-chest for eight pipes and a tracker action as a connection between keys and valves.  Children about 12 years are able to build it, but there is no age limit. Everyone could have much joy both the playing and the building experience. YouTube shows many examples of organ playing on a small organ.      YouTube

Tracker action

The connection between key and valve is called the tracker action.  Here, it is a thin nylon line which goes through a wind-proof hole in the bottom of the wind chest. The supple leather prevents a take away of the next thread.
windlade
Wind chest

Tie the thread to the eyes in the valves and the eyes in the buttons. The thread passes through the openings of the leather and on the spot the passage provides a glue drop for the conclusion. A glue drop at the end of the yarn prevents the fibers.

The valves are wooden strips 58 mm long, 11 mm wide and 9 mm high. At the top the sheep skin closes the wind supply to the pipes.

Make the leather a little long, it is glued there as a hinge on the valve plate.

Pallet plate - upper board middle - upper board
The pipes are placed in holes in the upper plate. The pipes cannot get a place exactly above the valve holes. Due to the different widths, the big pipes get more space than the small ones.

In church organs, the difference is compensated with conducten and in this mini-organ, it happens by the plate with ellipses.  This plate is drilled partially together with the valve plate (8 mm Ø) and partly together with the upper plate. So there are two 8mm holes which form an ellipse associated with each other. All plates are glued together with white wood glue. This triple upper plate is on the glued sides of the wind chest.

toetsbeweging
Building a Mini-Orgel          

About the construction of a mini-organ I have written a booklet. All parts of the organ are shown in clear perspective drawings. All dimensions are specified, so that it is possible for anyone to build the mini-organ.  

The booklet can be requested for free with the
e-mail address
and the full postal address.
         
 Mail to:    John Boersma

                                                    
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    Mini-Organ with pipes of lead