Described herein are fetal andor maternal monitoring devices, systems and methods using UWB medical radar. The preferred embodiment of the system has an attachment that has an attaching end which matingly engages the nose end portion of the hand tool, and includes a rotatable coupling with inner threads that engage outer threads on the nose portion. Foil-type valve metal anodes as well as porous valve metal anodes formed from metallic powders may be used in conjunction with the titanium cathodes of the present invention. An apparatus is also provided which, by robotics, brings a multiplicity of wax patterns to a wax runner and which automatically heats both the wax patterns and the wax runner before simultaneously pressing both the wax pattern and the wax runner together.