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Two Major Design Changes

SEE ANIMATION OF THE CANTILEVER ARM

 

 

I have just completed two major design changes to the Opus1 Gouger that provides for much more rugged construction.  I have found that many people like to grip the mechanism that was used to adjust the up/down position of the blade.  That particular knob was an adjustment knob and would sometimes go out of adjustment with the constant pushing and pulling of the gouger action.  The Opus1 now uses the mechanism as seen directly to the LEFT.  It is a smooth mounting mechanism that utilizes the same drive screw as before but eliminates the use of the two dowel pins that created the force to more the blade up and down.  Now the screw has a locking washer that provides the force to move the blade.  This also eliminates any binding that occurred with the previous design.

Another important change deals with the Center Thickness Adjustment Wheel.  It used to be a Cam-style wheel that when rotated moved the wheel higher or lower and thus changed the center thickness of the gouge contour.  That worked well but the adjustment more effect on the thickness during certain points along the rotation of the wheel and less effect on others.  Also, some people would loosen the axle screw to change the center thickness adjustment and would cause problems. 

The new design is a CANTILEVER ARM adjustment.  The height is adjusted with the vertical screw that you see to the LEFT just over the wheel.  It has the same thread as a micrometer so the adjustment is fine.  The horizontal screw seen on the front face of the arm is the lock screw.  This design is very hearty and will hold the adjustment accurately while being easy to adjust.  The one caveat is that all adjustments to the Cantilever Arm should be done with the carriage is the down or closed position.

The gouger is machined so that the carriage is parallel to the base when the gouge measures 0.60mm at the center.  This keeps the bottom of the blade at the bottom of the gouge.  If the carriage is angled significantly when it is finished gouging, you are effectively altering the gouge contour because the blade will have a different orientation with respect to the cane.