Laura from Sew Very Easy discusses getting your sewing machine through those thick and bulky (possibly unpressed?) seam allowances on the inside of your projects. Laura explains why your machine behaves the way it does when it encounters extra layers of fabric.
Watch the close-ups to learn and understand how you can quickly rectify this whenever you have to sew over seam allowances:
EverSewn Sparrow 30 – 310 Stitch Computerized Sewing Machine from: Sewingmachinesplus.com, Inc.
Zigzag (J) Foot XC3021051 (SA176) – Fits Baby Lock, Brother – $11.99
from: Sewingmachinesplus.com, Inc.