Sewing Machine Parts

Sewing machine parts study cards for FACS I and FACS II classes.
STUDY
PLAY
BED
The flat part of the sewing machine where fabric lays and the throat plate, slide plate and feed dogs are located.
BOBBIN
A small, flat spool that holds the bottom thread inside the machine.
BOBBIN CASE
The area under the slide plate that holds the bobbin.
BOBBIN TENSION DISCS
Set of discs on top of machine which thread goes through that are necessary for bobbin thread to wind correctly.
BOBBIN THREAD
Thread that you wind on the bobbin to make the bottom part of the stitch.
BOBBIN WINDING SPINDLE
Is located at the top of the machine and holds bobbin while thread is wound on it. Move it to the left when not in use and to the right to wind the bobbin thread.
FEED DOGS
Regulate the stitch length as it feeds the fabric through machine under the presser foot while you guide the fabric to be sewn.
FOOT / PEDAL CONTROL
Regulates the starting, running, and stopping of the machine by the amount of pressure applied to the pedal / control with your foot.
GUIDELINES
Lines on the throat plate used to guide the edge of the fabric against in order to sew seams the same width.
HAND WHEEL
Moving this makes the take-up lever and needle go up and down. The main purpose is to be able to slowly turn the needle by hand, giving you control to position the fabric under the needle. It also turns when the machine is running.
HAND WHEEL KNOB
Small knob inside the hand wheel (on some machines it is the whole hand wheel) that, when pulled out, stops the needle from moving while a bobbin is being wound.
NEEDLE
Part that you thread the upper thread through that feeds/pushes the thread through the fabric to form the upper part of the stitches.
NEEDLE CLAMP
Small, flat screw just above the needle that holds the needle in place. Used to change the needle when it breaks or you need a different size/type of needle for your project.
POWER / LIGHT SWITCH
Switch on right side of machine that turns the machine off and on. The light comes on when the machine is turned on.
PRESSER FOOT
Holds fabric in place when lowered by applying pressure on the fabric as it is fed under the needle by the feed dogs.
PRESSER FOOT LIFTER
Lever used to raise and lower the presser foot. Lower it to sew, raise it to place fabric under needle or to remove fabric when line of sewing is complete.
REVERSE CONTROL
Lever or button that, when pressed, allows machine to stitch backwards.
SLIDE PLATE
Plastic covering (may be metal on some machines) that slides out or is removed to access the bobbin case to place or remove the bobbin.
SPOOL CAP
Part that holds the spool of thread on horizontal spool pins.
SPOOL PIN
Place at top of machine that holds thread spools in place; is the first step of the thread being evenly threaded through the machine.
STITCH LENGTH CONTROL
Dial used to control the length of the stitches.
STITCH PATTERN SELECTOR
Dial used to select the type or pattern of stitch needed.
STITCH WIDTH CONTROL
Dial used to adjust the width of decorative and zigzag stitches.
THREAD GUIDES / HOOKS
Metal hooks and loops used to guide the upper thread through the machine as the machine is threaded helping the thread to feed smoothly through the machine.
THREAD TAKE-UP LEVER
Feeds thread from spool to needle as it moves up and down.
TENSION DISCS
Regulates the amount of tension on your thread as it travels through the machine.
THROAT PLATE
The metal part located on the bed of the machine, under the presser foot. It protects the bobbin and bobbin case. It also has guideline markings that help keep stitching straight.
UPPER THREAD
Thread on spool that is used to make the upper part of the stitch. It is placed on the spool pin.
UPPER THREAD TENSION CONTROL
Dial that controls the amount of pressure applied to the thread, regulating the tightness or looseness of the upper thread so the stitches are evenly formed.