 The Oboe BBoard
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Author: huboboe
Date: 2011-04-04 05:08
Whoah! Been away for a day and a half and look at the response!
Jonathan: I assume your observations and questions refer to the Westwind gouger...
The blade is mounted exactly centered in the guides, which are machined at the same radius as the blade. The 'sidewall adjustment' mechanism carries the blade & guide assembly horizontally from the centerline of the bed to either side of it, so you can single radius gouge on the centerline or double radius gouge off of the centerline.
My earlier question is 'what is a good profile diameter for double radius gouging'?
The accuracy between the guides of the remounted blade is assured by mounting it against the back wall of the blade/guide assembly. You will not change the profile of the blade if you sharpen by honing the flat top of the blade.
The 'carriage-as-a-whole' really isn't. Instead the 'bearing block contains the bearings which move the carriage on the shaft. (On the X axis.)
The blade block carries a secondary block which is adjusted in the Y axis, the 'sidewall thickness adjustment. Adjustments to change the relationship of the center/sidewall dimensions are made with the 'sidewall adjustment' independent of the gouge thickness adjustment.
The secondary block carries a mounting block for the detachable blade/guide assembly. The 'gouge thickness' adjustment moves the blade/guide assembly up or down (in the Z axis) with respect to the bed when the gouge is complete. This will, of course, result in a small change in the sidewall thickness as the curved blade plunges further into the cane, but this can be brought to the desired dimension with the sidewall thickness adjustment.
Each adjustment on the gouger is independent of all others.
As I said earlier, I am new to double radius gouging so I can't speak for common practice, but as Cooper says above, they are usually smaller and asymmetrical. In my case they are smaller (but by how much??) and symmetrical on the guides.
I'll post some pictures tomorrow...
Robert Hubbard
WestwindDoubleReed.com
1-888-579-6020
bob@westwinddoublereed.com
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huboboe |
2011-04-02 05:00 |
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hautbois francais |
2011-04-02 05:08 |
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RobinDesHautbois |
2011-04-02 11:53 |
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huboboe |
2011-04-02 06:34 |
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JMarzluf |
2011-04-02 07:10 |
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RobinDesHautbois |
2011-04-02 11:48 |
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jeremyreeds |
2011-04-02 12:24 |
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RobinDesHautbois |
2011-04-02 21:13 |
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cjwright |
2011-04-02 22:11 |
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Re: Single and double radius gouging new |
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huboboe |
2011-04-04 05:08 |
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JMarzluf |
2011-04-04 06:55 |
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huboboe |
2011-04-04 05:35 |
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huboboe |
2011-04-04 06:00 |
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cjwright |
2011-04-05 02:21 |
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hautbois francais |
2011-04-05 00:25 |
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huboboe |
2011-04-05 05:36 |
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JMarzluf |
2011-04-05 13:53 |
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huboboe |
2011-04-05 23:36 |
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JMarzluf |
2011-04-06 00:15 |
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hautbois francais |
2011-04-06 04:18 |
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huboboe |
2011-04-06 05:20 |
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The Clarinet Pages
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