Here is one way to make cutting boards with a router. These have no grooves, so are probably better suited for serving.
I have made two, one with the wood from the tread of an old oak staircase, the same as I used for this clock
, and another from a desk I found on the curb. I don't know which wood was used for the desk, except that it's hard.
- Table saw
- Cove bit
- Round over bit
- wooden boards
- mineral oil
First I cleaned up the board using a sharp piece of metal on a handle to scrape off the top millimeter. This was necessary because the board surface was in bad shape (sand, pieces of glass), and I didn't want to damage the planer.
After that I put it through the planer.
The pieces had old screw holes, so I cut those parts off using the table saw.
Then, using the round over bit, I rounded the edges.
Placing the board upright I then used the cove bit for the handles
Then I sanded.
I recommend at this point to sand very well. I went home, applied mineral oil and then washed it (to get rid of dust from the sanding). That resulted in the whole cutting board getting tiny frays of wood sticking out everywhere. Sanding after oiling is not something I recommend, so perhaps giving the board a slight wash to expose these tiny frays and then re-sanding before oiling might be a good idea.
Finally, apply mineral oil. Wipe off excess.