GAW , there are a lot of places on e-bay but I get mine local at a bearing place in Ft. Pierce they have a lot of stuff at fairly good prices and I will attach a drawing but it will need to be opened with BobCad V23 to view it..I changed it to a DXF file and also added the MACH3 file if you want to just dry run it to see how it is..
I don't know if I can post it as a reg picture but will try..Also I was holding on to the gantry plates while running a back and fourth and up and down simple program and held on to the axis and could not stop it or barley even slow it down so there is plenty of torque , just would like a little more speed but I doubt I will be cutting anything over 175 IPM with it anyway...
here are some files , and any files you want or need just ask I have all of them in my bobcad files in case i need to re-make them ,,, I can also send them in Mach3 files and all are cut with a .250 2 flute carbide bit fairly slow because of slop in my bridgemill from shoptask..