I impulse-bought this AEG saw for cutting Villaboard; it looked the best thing for cutting irregular shapes. AEG POWERTOOLS Fibre Cement Saw: MBS30 - YouTube
On its first use on 10 mm ply, the dust collection worked even better than advertised, so today I cut up some Villaboard for a new granny flat kitchen. I had the saw attached to a large Festool vacuum and had the blade height adjusted for minimal penetration. Unlike the ply dust collection, a heap of swarf was thrown out - if felt like my arms were being sand-blasted!
Any ideas to improve the dust collection? I am thinking of taking off the rotating blade guard (or just the handle) and adding a polycarbonate cover to the side of the upper blade shroud help trap large particles. Apart from this the saw is excellent - very light, compact, versatile and easy to use.