These are the bottom surfaces after this side has been surfaced to plus 1/16" above the surface.
Notice how all clamps and clamping blocks are located below the level of the routers' cut.
This is how the mold looks after removing all the clamps. Next we must remove the excess wood on the inside of the four corner blocks and do fitting and gluing on of the glue liner strips.
In these two photos, I am using a flexible, thin plastic marking tool to draw the smooth curve on the corner blocks following the shape of the inside of the ribs.
Now it is time to chisel the excess wood from the inside of the blocks, carefully working down toward our guide contour pencil lines. I have put a soft surface (soft masonine board - red color) under the mold so that the chisel will not be dulled when the tool finishes each cut. Work from the direction that goes with the grain (that is: does not split out to deeper than you intend).
Modified 9/2017
Page O16C_20
