More progress, outer housing and motor plate have now been part machined. The outer housing needs the bore opening out to take the motor plate locating spigot. I'll do the roughing on the CNC mill and then swap over to a machine jig plate mounted on the lathe - probably in the 4 jaw. I'll machine the jig plate once mounted in the lathe thus ensuring that it is true. The motor plate will be mounted to the outer housing an then machined thus ensuring that the recess for the motor is true to the rest of the assembly.
Attachment 269026 Outer Housing
Attachment 269028 Components so far plus harmonic drive gear rings
Attachment 269030 Jig plate, 100mm x 100mm x 25mm 7075 Al.