Q1 Describe cutter comp look ahead Q2 how many axis are on a

Q1 Describe “cutter comp look ahead? Q2 how many axis are on a turning center? Sketch and label them ? Q3 Describe the process used to make lathe inserts? Q4 Describe the difference between 2D, 2 1/2D, and 3D machining ? Q5 Describe what a post processor is . why is it necessary ? Q6 when milling a pocket , what is the cutter “ step over” ? what is a typical amount for ½ “ cutter ? Q7 what are “ modal” commands ?

Solution

CUTTER COMPENSATION LOOK AHEAD FEATURE:

This feature allows the control to scan few commands of the program. When the cutter moves along a surface, the control looks ahead to see what is coming up in the program so that it can end the current motion in the required manner. It also helps to determine if the tool can completely machine one surface without violating another. If so, the controls will generate an over-cutting alarm. This error generally occurs if the drawing isnt made to proper aspect ratio.