IET 377 Midterm || with 100% Error-free Solutions.
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Module
IET 377
Institution
IET 377
How are the machine axis labeled? correct answers Z- Always through the spindle
X- Next longest range
Y- What ever is left
Under what circumstances do you use the emergency stop? correct answers True Emergency-alternatives G28, feed stop, cycle stop
How do you verify tool paths? correct ans...
IET 377 Midterm || with 100% Error-free Solutions.
How are the machine axis labeled? correct answers Z- Always through the spindle
X- Next longest range
Y- What ever is left
Under what circumstances do you use the emergency stop? correct answers True Emergency-
alternatives G28, feed stop, cycle stop
How do you verify tool paths? correct answers 2D simulation (miss 3rd dimension, read through
file, dry run (offset)
What is an NC file? correct answers File created by Mastercam, which includes a suite of CAD
programs used for designing and manufacturing components
What are the differences between NC, CNC, and DNC? correct answers NC- Numeric Control
CNC- Computer Numeric Control
DNC- Direct Numeric Control
What is the machine home? What does it do for you? correct answers top front left hand corner
(all points referenced from there)
What is GLRP? What do it do for you? correct answers Gage Length Reference Point-All H
values set against distance down
What is/are modal commands and non-modal commands? correct answers Modal- G01, G00
(stays until not needed)
Non modal- X, Y (used once)
What is the significance of parenthesis in a NC code? correct answers Not read-note to operator
What is a safety block? correct answers Clears machine memory, protect you from others
(G40 G49 G80 G90 G20 G17)
Why are % signs used in NC code? correct answers Beginning/End of Tape
What is the difference between Incremental and Absolute Positioning? correct answers
Incremental- Reference from last point used
Absolute- 0,0 origin
What are M codes and G codes? correct answers M-Machine Codes
G- Geometry Codes
What are the letters O,D,H,T,I,J, K, Q,R,N,F,X,Y and Z? correct answers O- Operator
D- Diameter (Cutter Comp.)
H- Height
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