I'm continually frustrated with my inability to profile grind a smooth and continuous, inside curve. An example of an inside curve is the spine of a swept back skinner or the bottom of a curved handle. There are two instances where this causes me grief. The first is the initial profile grind when following the pattern scribe lines. I use the platen on my belt grinder and adjust the belt to wrap around the platen. The small radii are easy but the larger ones (curves) are not smooth and continuous and have high and low spots. I then attempt to use a 4" rubber grinding wheel which helps but it tends to follow the valleys and not smooth out the high spots. In addition, the 4" is too large to blending a finger groove with the rest of the handle. The second instance is after the handle has been shaped and sanded. I like to grind the profile so it is flush with the handle material and then progress to finer belts for a nice finish. I use a 3/4" wheel to finish the finger guard but have trouble blending it with the rest of the handle, especially when those bumps and valley's are heat treated steel. Sorry for the long explanation.
Any suggestions?
Any suggestions?