Welcome friend!,Lots of info is needed localize the problem your having.Too much vibrayion could be a number of things,saw not fastened solid to a table or board,not enough blade tension,blade loosens up immediatly after you start up the machine,wore out connecting arm link in the back of the saw,bad bearings somewhere etc.All these contribute to quick breakage of blades .Fast turns in corners will break the blade almost everytime.Now the band saw , Are you scrolling with a 1/8" or 3/8" blade or a 1/2" blade.To scroll good use a 1/8" blade and slow again in the turns.Blade tension needs to be tight with these saws too.Band saws have lots of adjustments for tracking so that's another story.You came to the right place for answers .Glad to have you aboard! Ask away! :) :) :) :) :)