Hi. I think I have seen an answer to this question before but have lost it. When you cut plywood with a jigsaw for instance the edge tends to splinter. Is there any way to avoid this happening?
Either use a saw blade with finer teeth and go slower at it or (if a straight cut) score down the sides of where you are cutting with a knife and straight-edge to make a pair of tramlines.
Additionally, place a strip of masking tape (the paper tape one uses to paint a straight line) along the line you intend to cut. Mark your cut line in the middle of it. The tape will stop most if not all of the splintering and the remaining two sides will peel off easily...