Tunnel drilling aimer and iso-angle user interface

A surgical controller comprising:

• a processor configured to couple to a display device;
• a memory coupled to the processor, the memory storing instructions that, when executed by the processor, cause the processor to:
• present, on a user interface on the display device, a single aimer indicator to identify when a first parameter of a tool is satisfied, wherein the first parameter pertains to a first axis associated with the tool;
• modify a first aspect of the single aimer indicator to identify when a second parameter of the tool changes, wherein the second parameter pertains to a second axis associated with the tool;
• determine when a threshold associated with the second parameter is satisfied;
• responsive to determining the threshold associated with the second parameter is satisfied, modify a second aspect of the single aimer indicator to represent the tool is in coaxial alignment.

A tangible, non-transitory computer-readable medium storing instructions that, when executed, cause a processing device to:

• present, on a user interface, a single aimer indicator to identify when a first parameter of a tool is satisfied, wherein the first parameter pertains to a first axis associated with the tool;
• modify a first aspect of the single aimer indicator to identify when a second parameter of the tool changes, wherein the second parameter pertains to a second axis associated with the tool;
• determine when a threshold associated with the second parameter is satisfied;
• responsive to determining the threshold associated with the second parameter is satisfied, modify a second aspect of the single aimer indicator to represent the tool is in coaxial alignment.