what is the thickest plywood you can cut with the lazer

Our blackTooth laser cutter and engraver, will cut up too 1/4" wood, and acrylic. This will be the norm with our machine. Trying to cut a thicker material is possible but will need certain adjustments, ex. lowering the laser nozzle/focal point as the cut is made, lower and lower till the complete cut is made. We however do not recommend doing this with our machine!