Rerurn to Romy the Cat's Site

jd wrote :

"...Obviously, with a horn this big you will want to rotate the template, and leave the assembly stationary... The challenge will be to make sure the rotation template is RIGIDLY mounted at both top and bottom, and is held in a RIGID frame..."

On second thought, because the horn must sit on something while you turn it, I can't see a simple way to rigidly locate the bottom of the template while still allowing it to freely rotate about the horns central axis... Probably better to bolt the template to a corner of your house and get three pre-carbo-loaded friends to help rotate the horn.

Alternatively you could do what I did... I rotated the master for my upper bass horn in halves, with the horn laying horizontally... Because the template did not have to rotate more than 180°, this allowed simple fixation of the template at both ends, to the central axis (the other reason for doing it in halves is getting it through the door).

jd*

Rerurn to Romy the Cat's Site