A mini tambour style desk clock

Step 2: Measure the clock insert

I started by using the compass to measure the radius of the back of the clock mechanism.  The clock that I purchased had a silicon gasket around the back.  I wanted to make sure it would not fit loosely (into the wood block), so I did not measure all the way to the outer edge of the silicon gasket.  I locked the compass into place so I could use it to draw the circle on the block of wood.