hello everyone, i use mach3 on my small cnc,and it happened to me yesterday that my tool sudenly left toolpath and crashed into material....it was performing a paralel finnish milling along y making a 1x1 inch piece (minus part of a stamping die ) in plexy and going back and forth,bit down and again back forth along y,and in 1 line while taking just a fin layer on the top and coming to "end of stock" he ,insted of turning back like 100 times before,the tool just continued to go straight and after half of inch went deep into material and stoped,"zero" of corse changed to somwhere on that sot where it "landed" .i dont know if zero changed b4 or after.but i didnt notice mistake in g-code cos i took tool out and put it back and this time he did corect his path.. anyone experienced this? Miro