The pattern is based on The Strad’s Stainer 1679 poster published in their April 1990 issue.
I use an inside mold with a large clearance for c-clamps which I use for clamping the counter-forms for attaching the ribs to the blocks.
In this build i’m making two violins more or less simultaneously. The Ribs are well flamed with a wide grain (local British Columbia wood). The blocks are made from Newfoundland Black Spruce.
Note the grain orientation on the blocks.