Trimming the Length of the Arcade Blank
On your keyboard blank, find the exact center of the 1st C key and mark that spot on the front of the key.
Do the same for the last key on the right side of the keyboard.
On the arcade strip the center lines that were used to locate each arcade should still be visible.
On the first and last key extend the center line onto the top side of the arcade strip as shown below.
