Implantation. Visual and haptic rendering of temporal bone drilling comprises the second stage of system design and is the focus of this paper. A geometric model has been produced for this purpose. The suitability od the Reachin Application Programming Interlace (API) to facilitate simulator implementation is exammed. Texture mapping is applied for visual rendering of drill bil and bone interactions. Force and toupie feedback associated with bone dissection are introduced. The progress made is reported, The model will incorporate electrode array insertion as a final stage in design.