NEED To Define x,y,z values for the robotic arm using csharp for the alphabets writing

Question

hello

i m a final year student and i need to develop an application for the robotic arm in csharp that is "Teaching Robot"

actually the main theme  of this is that i have to define x,y,z movements for the robotic arm in order to write the alphabets on the board and for this i have to send that x,y,z movements on the parallel port.

i need ur help and asssitance(in briefing and in code also)

regards