Just setting up our agweike 6 in 1 for our robotics team. Cutting 2mm 6061 aluminum. Trying to create a 20x30" plate with 20 1/4" holes. The holes all cut without issue but when it tries to cut the shape out of the plate it runs about 6" and faults out on a capacitance fault. Tried reloading same issue in the same spot. Using a 1.5S nozzle at 100% power. Z calibrate goes well. Do we need to attach a ground clamp to the plate rather than rely on the plate on thr support ribs crearibg the ground or is it another issue? Thanks