V-CUT Design &DFM
2. Board shape is generally marked by keep out layer, places need V-Cut in board only need to be marked in keep out layer drawing, but marked with “V-Cut” words at one edge of V-cut line is more clear to PCB manufacturers.
3. Normally the remain thickness of V-Cut is 1/3 board thickness, the V-Cut angle is generally 20, 30, 45, 60 degrees, remain thickness of V-Cut can be adjusted according to the customer's requirement.
4. Because of glass fiber yarn may become loose after breaking off, in some circumstance, V-Cut PCB size will be slightly out of tolerance, in some products size will be 0.5mm larger.
5. V-CUT knife can only go a straight line, can not go curve line and polyline, generally suit for board thickness bigger than 0.4mm