Badge3D created this step by step scaling tutorial for everyone.
3D model from Do3D. Scaled, 3D Printed, Finished by Badge3D
This video was created 5 years ago by one of our friends (Eric) but it still covers great topics on Meshmixer capabilities to morph and scale the armor to fit the 3D scan of your body. Note: Our newer files do not break up into many pieces and are not low poly like shown in this video.