Fabricated a z axis on legacy ornamental mill model 1800
i fabricated a z axis for my legacy ornamental mill model 1800 using 3/8" and 1/4" thick 6061 T6 plate aluminum, 1/4" x 1.25 6061 T6 angle aluminum. holes were drilled and tapped with 1/4-20 and 10-32 threads, and am using lock washers on every hex screw, should any screws work loose i will add loctite to the threads. i added 4 caster wheels with brakes to the legs, i changed the orientation of the router and am using a porter cable 3 1/4 horse power 7518 soft start electronic variable speed router. the z axis is a ball screw with an acme threaded rod used on cnc machines. i added a digital depth gauge and the router has 8" of downward travel. the machine seems to be a lot tighter with closer tolerances. the first picture is before and the next picture is after. i cut all the aluminum on my 12" dewalt 60 tooth carbide tipped power miter slider saw. it was the first time i cut aluminum, it cut the 3/8" thick plate aluminum very easily.