ABSTRACT
Take the following measurement from your pattern Panel 2
Point 39 on the shoulder line of your stays pattern square up to the mid-point of the back shoulder of the traced female basic block pattern
Panel 4Point 57 on the front of your stays pattern to point 56 on the front shoulder of your traced female basic block
These two measurements added together will give you an approximate length for your strap, but will need adjusting at the fitting stage as the straps go across the top of the arm.
https://www.niso.org/standards/z39-96/ns/oasis-exchange/table"> 1 to 2 strap length (calculated from your pattern) plus 3cm 1 to 3 square up 6cm with a temporary line 3 to 4 square across 3.3cm with a temporary line 4 to 1 connect with a straight line 2 to 5 square up 2.5cm 4 to 5 connect with a shallow concave curve using the diagram as a guide