SkillsUSA CNC Milling Practice Exam

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What code is used to change tools on a vertical machining center to tool number 8 using MDI?

M05

M06

The correct response for changing tools on a vertical machining center to tool number 8 using MDI is the command that includes M06. This specific command is universally recognized in CNC programming for initiating a tool change operation. When you use M06 followed by the tool number, such as T08, it instructs the machine to execute the tool change process to the specified tool, in this case, tool number 8.

In this context, M06 is essential because it is the command that tells the CNC machine that a tool change is required, and it allows the controller to handle the logistics of safely retracting the current tool, moving to the tool storage, and inserting the new tool into the spindle.

Other commands listed, such as M05, G43, and T08, serve different purposes. M05 is used to stop the spindle, G43 is utilized for tool height offset adjustments, and T08 simply identifies the tool but does not carry out the change by itself. Therefore, M06 is the critical command needed for changing the tool on the vertical machining center.

T08

G43