Wednesday, October 21, 2015

New Folded Bass Horn - More Progress On Second Horn 4

Before cutting out the cover for the fold between the first and second chambers, four braces are cut to stabilize the midpoint of the edges of the panels.  The braces also function as spacers to correct any warping or bowing of panels.  Here is an image of the braces taken while the glue is drying.

Braces With Glue Drying
Braces With Glue Drying
 After the glue dries, the cover is cut out and drilled and countersunk for fasteners.  The cover is made from 5/8" plywood instead of 1/2" plywood so it will be stiffer.  The next step will be to fasten the cover with screws but without glue to make it possible to get the assembly apart later on if necessary.  I plan to use speaker gasket material on the joints to prevent pressure leakage.

Cover Ready To Be Fastened To Assembly
Cover Ready To Be Fastened To Assembly
The second folded corner bass horn is a lot easier to build than the first because I am simply copying the first one.  On the first one, I did not know the dimensions of the parts until I began to assemble them and was able to measure the partial assembly to get correct dimensions for cutting panels.


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