Preloading your EDM parts is accomplished using an extensive assortment of 3R Tooling. For 14 years we have built our tooling base to quickly fixture and cut parts without needless setup times. Shown to the left is part of one preload station. The part is mounted in a variable precision holder that is mounted on a granite block via the identical dovetail it will see in all of our machines. This way the part is indicated in with the precision adjustments on the tooling in all planes while it is out of the machine... When the part is indicated flat and parallel outside the machine, no valuable machine time is taken for setup. The part leaves the preload station when the machine is ready, mounts in seconds and the EDM machine is immediately running.  No costly machine time wasted to indicate parts in.