Message #205560

[Allen]

The second picture shows the stone against the wood and the blade.
 
The groove is being cut but the stone can only be pushed onto the blade until it hits the step now protruding on the wooden guide. Depth of cut is set by the adjustment screws.
Just place the stone against the blade and gently turn.

I expect a sintered or smooth blade would give a better result than those that are notched.

Some material is better than others, but yesterday I did some bolder opal (congealed mud) for good results.