Step 3: Set up the laser and measure the distance between the laser and the cup
To make sure the laser can completely cut through the powder coat successfully, Shartiz said the laser needs to be fired at a specific frequency, power and speed.
“I would use a slower speed rather than a faster speed because that will allow for the laser to engrave a more accurate picture,” Sharitz said. “For example, if you use a hot iron and press it down then lift it up really fast, it’s not going to leave nearly as much of a mark as if you had allowed the heat from the iron to stay on the surface longer.”
For the 40oz Stanley Quencher cup, Sharitz uses 500 pixels for frequency, 100% power and 55% speed.
Measuring how much distance the laser needs to be away from the surface of the cup is an important step to ensure the accuracy of the engraved design.
“You will also need a rotary tool because, without one, the laser can’t stay in focus while engraving on a round surface,” Sharitz said.
