Author: jhoyla
Date: 2010-07-13 08:02
Robin,
I have used double-radius-gouged cane in the past, though I do not gouge cane myself. Your picture would seem to be correct, except that the blade is usually of a smaller diameter than the bed.
The end result is that double-radius gouged cane has a slightly thicker ridge down the centre (as in your picture). I expect that the width, geometry and thickness of the ridge is controlled by the bed offset.
I think the same effect could be achieved by being able to rotate the bed longitudinally, along its axis, without needing to reverse the cane. However, if you reverse the cane you can ensure that the overall result is exactly centered.
One thing has always puzzled me about gouged cane. When you get a fresh piece of gouged cane it has very distinct ridges along its length, due to the grain of the cane. However, once you have scraped a reed, the top surface of the reed is perfectly smooth, without ridges.
Often while making a reed from commercially gouged cane I will notice a longitudinal line of weakness that is on both blades in the same position - obviously this is either a natural problem with the cane, or a problem with the gouge.
Why is it not possible to gauge the cane so that it is perfectly smooth on the inside, with no ridges?
J.
Post Edited (2010-07-13 08:05)
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