I am wanting to carve a 3D pattern that is .75 deep the pattern I can't change because I received the pattern from Oscar is there a way that I can carve that pattern with out hurting the machine.. that carve burned up new flex cable and I would like to try it again, I must of done some thing wrong. This is in reference to the "door knocker" I want to put two peices together back to back. when I done it the first time my peices were only a .25 thick I might of changed the board pattern thickness size to .25 pattern instead of the 3/4 that oscar original sent me.