Marking device for a table saw

A marking device for a table saw comprising:

• a casing adapted to be attached to a panel of the table saw and including:
• a cavity defined in the casing;
• a protrusion extending from the casing and adapted to penetrate the panel of the table saw;
• a through hole defined in and extending through the protrusion;
• at least one threaded hole defined in the casing and adapted to face the panel of the table saw such that at least one bolt is adapted to extend through the panel and screwed into the at least one threaded hole to hold the casing in place;
• and
• a cover attached to a top portion of the casing to close the cavity to prevent sawdust form floating into the casing;
• and
• an optics assembly mounted in the casing and including a laser radiating device secured in the casing, the laser radiating device having a lower end extending through a bottom of the casing and adapted to align with a saw blade of the table for emitting a light plane that is adapted to align with a saw plane of the table saw, the laser radiating device having an upper end electrically connected to a power supplier that is adapted to be mounted in the table saw, a lighting element secured in the casing, the lighting element having a lower end extending through the bottom of the casing for illumination of an area of the table saw with the illumination overlapping the light plane of the laser radiating device, and an upper end electrically connected to the power supplier.