edm hole drill emc2 vismach heekscad a very long ( 1meter x 1mm ) brass tube is driven by Z the W axis is a guide just above workpiece an array of cooling hoels is drilled into the 2 vane bucket the vismach simulation was used to see range of motion needed todo: need to change tubes, estimate wear & thus tool life, simulate surface pickup, change guides as well ( rack tool change using new oword tool change features by mha & psha )