I get asked about making a dovetail marker more often than almost anything else, so here is how I actually approach it.
Common mistakes
Do not rush the paring. Give it the time it needs and the square stops being a guessing game. I used to ignore the paring entirely. That was a mistake, and it cost me a whole finish before I noticed. Do not rush the tail. Give it the time it needs and the edge stops being a guessing game. A good stone makes the square forgiving. A poor one makes every later step harder than it should be.
How I do it now
The shop side of this is where most people stall. Watch the undercut closely, because it tells you more than any timer will. I used to ignore the undercut entirely. That was a mistake, and it cost me a whole finish before I noticed. If the marking feels awkward, stop and reset rather than pushing through and blaming the wood. I used to ignore the cup entirely. That was a mistake, and it cost me a whole joint before I noticed.
What actually matters
A good paring makes the square forgiving. A poor one makes every later step harder than it should be. Most guides skip straight past the stone. That is exactly why so many people struggle with the cut. Most guides skip straight past the cup. That is exactly why so many people struggle with the grain. Check the baseline before you touch anything else. If it looks wrong, the tool will not save you.
Get the baseline right and everything downstream gets easier. That is the whole lesson.
Leave a Reply