if your build area has carpet pick up from staples or from someone plastic square for pc chairs. the dirty ground strap is use a screw driver and a metal coat hanger. wrap the coat hanger around the table leg and then put the screw driver on top of the table. before you pick up a part use your metal house keys or a metal spoon and tuch the screw driver on the metal part. if you and the table are not at ground...you feel the zap.