Speeds & Feeds
What is the value of the machining constant?
3.82
What is G0?
Rapid Traverse
What is G49?
Tool length compensation cancel.
What is wrong here?
N000 G17 G18 G20 G40 G54 G90
Two planes are selected
Write the code for the following:
N050 - Tool Change #3
N060 - Spindle on CW @ 3000 RPM
N050 M6T3 G43 H3
N060 M3 S3000
What is fm relative to?
Feed rate
What is cutter compensation cancel?
G40
What is G43?
Tool length offset (+)
What is wrong here?
N010 M6T1 G43 H1
Nothing
Write the code for the following:
N100 - Linear Interpolation at 50 IPM to coordinate X5.5 Y7.0
N100 G1 F50 X5.5 Y7.0
What is ft?
Feed/tooth or chip load.
What is G2?
CW Arc Cutting Movement
G21
What is wrong here?
N050 G1 F50 X1 Y0
N055 F25 X1 Y-1
Need to invoke G1 when changing feed rate.
In the following lines of code, write the function of said codes:
N040 M6T4 G43H4
N050 M3 S4,000
N060 M8
N040: Tool Change #4; Tool Length Compensation (+) for Tool #4
N050: Spindle On CW @ 4,000 RPM
N060: Flood Coolant On
What is the feed rate for the following (rounded to the nearest whole number):
SFM = 600; Tool Dia. = 0.25"; Chip Load = 0.005"; Flute # = 3
138
What is flood coolant on?
M8
What is the code to program in the XY plane?
G17
What is wrong here?
N1000 X2 Y0
Nothing
Write the code to perform the following task:
N090: Linear Interpolation to X1 Y1 @ 150IPM
N100: Linear Interpolation to Z-0.230 @ 25 IPM
N090 G1 F150 X1 Y1
N100 G1 F25 Z-0.230
What is the RPM for the following (rounded to the nearest whole number):
fm = 80 IPM; nt = 3; ft = 0.012"/2
RPM = 4,444
What is fixture offset #1?
G54
What is the code for cutter compensation (left)?
G41
What is wrong here?
N12000 G0 Z0.05
N12010 G0 Z-0.100
G0 on line 12010 should have G1 with a controlled feed rate when plunging into part.
Write the code to perform the following task:
N25000: Linear Interpolation to X2 Y2.3 @ 250IPM
N25005: Rapid Traverse to Z0.050
N25010: Rapid Traverse to X4 Y4
N25015: Rapid Traverse to Z-0.250
N25000 G1 F250 X2 Y2.3
N25005 G0 Z0.050
N25010 G0 X4 Y4
N25015 CRASH!!!