Bob Smalser
06-14-2005, 10:14 PM
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594402.jpg
Starting with a salvaged gooseneck screwed and brazed to a mounting block, some 1/8 X 2 silicon bronze strapping, and a bending jig made to fit the strapping's thickness ....
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594388.jpg
...the bronze is heated red and a 90-degree bend made.
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594393.jpg
The mast circumference it measured...
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594386.jpg
...and the distance is derived to the next bend.
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594382.jpg
The second bend is made so when the band is formed and the two bends butt, they are the derived circumference.
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594750.jpg
The workpiece is placed in an "oven" and heated to red...
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594744.jpg
...then while red, bent around a form made to the exact diameter of the mast.
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594739.jpg
Then the workpiece is placed back into the oven, heated red for a second time, and immediately quenched in water to anneal (soften) it.
Continued….
Starting with a salvaged gooseneck screwed and brazed to a mounting block, some 1/8 X 2 silicon bronze strapping, and a bending jig made to fit the strapping's thickness ....
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594388.jpg
...the bronze is heated red and a 90-degree bend made.
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594393.jpg
The mast circumference it measured...
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594386.jpg
...and the distance is derived to the next bend.
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594382.jpg
The second bend is made so when the band is formed and the two bends butt, they are the derived circumference.
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594750.jpg
The workpiece is placed in an "oven" and heated to red...
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594744.jpg
...then while red, bent around a form made to the exact diameter of the mast.
http://pic3.picturetrail.com/VOL12/1104763/7652151/100594739.jpg
Then the workpiece is placed back into the oven, heated red for a second time, and immediately quenched in water to anneal (soften) it.
Continued….