I allready posted this on ARC, but I think it would be a good one for the tips and techniques section, so here it is:
When I am removing casting blocks from resin, I hold the part over a vacuum hose that I hold between my legs. That way, all of the dust is immediately sucked down and away from my face. Just be careful, as the vacuum doesn't differentiate between the part and the excess and you may have to go sifting...if you know what I mean

Hope this helps and thanks for keeping up these great forums and this great web site!
Pete











