Help for designing a guide using CAD software


Hello I am a postgraduate dental student and I want a guide to be designed using CAD software for my thesis experiment. This will be used for drilling into artificial bone and precise placement of thermocouples for recording temperature change. I have a sample of the guide i want to design but it needs few changes. Unfortunately I am not able to figure out how to do it properly.I need to perform my pilot study in the month of May. I would really appreciate your help regarding this. Please kindly contact me on (ASAP)
Awaiting for a favourable response
Thank you in advance!