Friday, August 29, 2014

Bass Horn Project - Part One

Before attempting a New Folded Corner Bass Horn design that is likely to be very complicated to build and only worthwhile if it improves upon the performance of the highly regarded Klipschorn, I decided to build a couple of straight bass horns instead.

Bass Horn Project - Part One is the construction of the largest of three separate horn sections that will eventually be joined together to make one straight Bass Horn.  The point of having three separate sections is mainly for transport and storage in the smallest volume.  Theoretically, the smallest section will fit inside the middle section and the middle section will fit inside the largest section.  Separately carried, all three sections will fit through a standard 3' 0" x 6' 8" exterior door clear opening.  Nested together, they should fit in most SUV vehicles.  The fully assembled horn will be eight feet long without driver and back chamber so it could be tied down to a small boat trailer fully assembled.  Here are pictures of the progress so far:


Bass Horn - Part-1-01
Bass Horn - Part-1-01
This shows the upper and lower flanges connected by two pairs of ribs on opposite sides.  The larger flange has a cleat tacked to each side of the flange.


Bass Horn - Part-1-02
Bass Horn - Part-1-02
A five gallon bucket on the left illustrates the scale of this thing.  Here, the first of four Masonite interior walls is being fitted.


Bass Horn - Part-1-03
Bass Horn - Part-1-03
The first Masonite side is being fastened to the pair of ribs provided.  This material bends easily and can be stiffened with sprayed-in-place foam insulation later on if necessary.



Bass Horn - Part-1-04
Bass Horn - Part-1-04
Both sides are fastened to respective ribs.  These first two sides are trapezoids.  The next two sides will fit inside these and will be scribed, fitted, and fastened to complete the basic assembly of Part One.  I will be posting more photos as the project progresses.

Here is the completed basic assembly of Part One:


Bass-Horn - Part-1-05
Bass-Horn - Part-1-05
This bass horn project continues with Bass Horn Project - PartTwo.









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