|Modified Busker Pipe Layout
When I read John Smiths instructions and watched his video, I realised that
his pipe layout design was based on the principle of a light and compact
organ suitable for a child to carry and operate. This he has achieved
in a spectacular manner.
My own requirements, however, were not so stringent, and I was particularly
keen to avoid, if possible, cutting and "bending" the 3 bass pipes (Bb, F
and C) and the Eb and D pipes. I also wanted to mount ALL the pipes on the
front board with their apertures facing forward, to avoid any restriction
to the sound output, particularly from pipes buried in the main carcase of
the organ. I realised this would mean increasing the size of the pipe
mounting board, but I wanted to keep this increase to a minimum, as the organ
had to remain portable and fit into the boot of a small car!
In order to achieve this aim I made the following amendments to John Smiths
1. I increased the length of the Pressure Box assembly by 0.5" to 15" (extra
0.5" at the crank end).
2. I increased the height of the End Panels by 1.75" to 15" (extra 1.75"
on bottom edge).
3. I fitted the pipe mounting board on the front of the main carcase rather
than inside it, and increased its width to 17.5" (See Diagram 1).
4. I fitted the pipes to the mounting board as shown in Diagram 2, with all
the pipes facing forward and their apertures uppermost - except for the four
smallest pipes (A, C, D, and Bb) whose apertures were downwards. This
left the back of the board clear of air tubes in the lower half, which gave
space to mount the bass F pipe on the back as shown. The F pipe has one 90°
"bend" and its aperture faces forward through a cut-out in the bottom edge
of the mounting board. There is a matching cut-out in the decorative
front panel (See photo).
This arrangement allows the sound from every pipe to be heard without
restriction, whilst keeping the increase in the size of the mounting board
to a minimum. The decorative Front Panel was also kept to a minimum
size so that the organ fits onto the boot of a Skoda Fabia!