I engraved three of these today looking for best settings. This was the first.
Material is white artist canvas sheet. Comes in a pad of 10, 9" x 12" sheets (like a notepad - $8 US).
I used too much power on this example. It did partially burn through in the darkest areas.
PicEngrave Pro 5 - 60ipm FR - 20% FRC - 0.006" pixel resolution - S255 max. power (2.2 amps) - S0 for min. power - 45° left angle - 3.25 x 4 inches - 1hr 23 minutes.
Sealed with a satin lacquer spray. This is necessary because the canvas generates a lot of soot when laser engraved, which will easily smudge and wipe off.