Firefighters extinguished a smoky machine fire early Friday morning in a sign company at a warehouse near the Foxboro line.
Firefighters responded to an alarm at DGS Retail at 60 Maple St. about 3:45 a.m. where a fire ignited in an automated machine that drills holes in aluminum and plastic sheets, Deputy Fire Chief James Puleo said.
Firefighters searched through heavy smoke before finding the source of the blaze. Using dry chemical fire extinguishers, crews were able to put it out in about a half hour, according to Puleo. Investigators believe the fire was caused when aluminum and plastic shavings ignited from the heat of the drill bit, Puleo said.
The machine had been operating for several hours and was timed to stop at 4 a.m.
No one was injured fighting the blaze, he said.