"Trying to cut 40mm maple with anything from Black & Decker will be as fruitful as throwing spitballs at an elephant."
I suppose in general that's true. I have a 8" super sawcat by Black and Decker that plows through 8/4 maple. Actually the big B&D worm drive does fairly well but the thing is really contruction only.
They have made a handfull of good things but are better known for the not so good things!
Bill