Measurements and Calculations of Sleeva Pattern

Friends, I would like to share with you some Measurements and Calculations of Sleeva Pattern. Before showing the steps to draw the sleeve pattern,we have to do some calculations.Here are the measurements I used earlier for the sleeve in the general template.

Sleeve Length: 6"
Base of Sleeve: 12"

How to take the measurements:
Sleeve length: Measure how long you would like the sleeve to be from the edge of the shoulder where you can feel the joint.

Base of sleeve: 

Measure around your arm at the point your sleeve length ends.

Calculation:

Sleeve length: Measured Sleeve length + 0.5+1.5[stitching allowance]= 6+0.5+1.5=8

Shoulder/2= 16/2=8

Base of Sleeve= base of sleeve measurement /2+0.5=12/2+0.5=6.5