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WorksheetsCNC Milling (Metals)
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Sets the feed rate of the CNC table
a)
S
b)
F
c)
T
d)
G
2.
Sets spindle speed ( how fast the tool turns )
a)
S
b)
F
c)
T
d)
G
3.
Sets the feed rate of the CNC table
a)
S
b)
F
c)
T
d)
G
4.
Sets tool change
a)
M30
b)
G20
c)
M8
d)
M6
5.
Sets the length units to be in metric
a)
G00
b)
G20
c)
G21
d)
G01
6.
Sets the length units to be in inches
a)
G00
b)
G20
c)
G21
d)
G01
7.
Rapid position of the table
a)
G00
b)
G01
c)
M30
d)
G90
8.
Spindle on clockwise
a)
M3
b)
M8
c)
M6
d)
G20
9.
Turn off spindle
a)
M3
b)
M5
c)
G20
d)
G21
10.
Set distance mode to have X and Y always set to zero
a)
G03
b)
G00
c)
G90
d)
G91
11.
Ends CNC program
a)
M03
b)
M30
c)
M6
d)
T
12.
Any notes in the CNC within brackets ( )
a)
Are read by the program
b)
Not read by the program
c)
Stops or ends program
d)
Pauses program
13.
X axis In vertical CNC machining is typically on the longest ____________ of the table
a)
dimension
b)
shortest
c)
time
d)
rotation
14.
We use this code to set active plane
a)
M00
b)
G17
c)
G18
d)
G19
15.
Right hand rule has your thumb as the _____ axis
a)
R
b)
Y
c)
X
d)
Z
16.
Right hand rule has your middle finger as the _____ axis
a)
R
b)
Y
c)
X
d)
Z
17.
Right hand rule has your index finger as the _____ axis
a)
R
b)
Y
c)
X
d)
Z
18.
The Z axis will ________ or _______ the tool
a)
turn on or turn off
b)
delay or override
c)
stop or start
d)
raise or lower
19.
Z .1 will be ______ the surface of the material to be cut
a)
below
b)
above
c)
equal with
d)
lower than
20.
Z-.020 will be ______ the surface of the material to be cut
a)
far above
b)
equal to
c)
below
d)
above
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