Sewing machine provided with zigzag motion mechanism

A sewing machine comprising:

• a zigzag motion mechanism for causing a zigzag needle motion,
• an operating apparatus operated by an operator for controlling a zigzag width of a zigzag needle motion by the zigzag motion mechanism,
• an operation detecting apparatus for detecting an operation of the operating apparatus and an amount of the operation thereof,
• a zigzag width range setting apparatus for setting a range of zigzag widths that can be operated by the operating apparatus, and
• a zigzag needle motion controller for controlling the zigzag motion mechanism when the operation of the operating apparatus is detected by the operation detecting apparatus, and causing the zigzag motion mechanism to perform the zigzag needle motion in accordance with the amount of operation of said operation apparatus and within the zigzag width range set by the zigzag width range setting apparatus, wherein said zigzag width range setting apparatus is configured to set a zigzag width range within a range of zigzag widths that can be performed by said zigzag motion mechanism, and is configured to set any value of the zigzag width within said zigzag width range as a value to be used when said operating apparatus is not actuated.