Virtual SkillsUSA CNC Milling Specialist Project

2021 SkillsUSA 10 of 10

Virtual SkillsUSA CNC Milling Specialist Project

Scope of the Contest

The purpose of this contest is to evaluate each contestant’s preparation for employment in Computer Numeric Control Milling. In

addition, to recognize outstanding students for excellence and professionalism.

Skill Performance

The contest will assess the ability to write CNC programs, interpret prints (including GDT), and measure/gauge parts. Participants also

will demonstrate theoretical knowledge of CNC machine configuration, setup and operations.

Contest Guidelines

1. Each contestant will be given dimensional drawings to program a part on a Haas CNC Controller.

2. Programming

a. Write and verify CNC programs without the use of CAM software

b. Display complete knowledge of programming (G and M codes)

c. Apply the correct use of cutter compensation (G41/G42)

3. Perform mathematical calculations

a. Calculate CNC speeds and feeds

b. Calculate programming coordinates from the drawing

c. Calculate radius tangent points

4. Measuring

a. Measure sample parts within 0.005"

5. Communication

a. Read and interpret technical prints

b. Understand all symbols on technical prints, such as geometric controls, surface-finish symbols, corner-break symbols, etc.

6. Dimensions

This is a contest of programming skills. Contestant parts will only run on machine if programs run without violating safety standards

or damaging machines.

2021 SkillsUSA 10 of 10

Knowledge Performance

The contest will include a Resume, Portfolio, and Pre-Recorded Video.

Contest Information (All items must be received by March 26)

● PDF Resume

o Upload one file with contestant’s one-page resumes and include the digital link(s) to Written Outline and the pre-recorded video through Teams/ Zoom.

● Written Portfolio to include: o Written outline that identifies the process used including safety guidelines to create the completed project. Identify time

management and technical skills demonstrated.

● Video of Demonstrated Procedures

o Launch a Zoom/Teams Session and join in with the computer being used by contestant, and one to two additional cell-phone or web cameras showing the contest up close and one at a distance to show the lab space. Make sure the zoom in on the contestant’s hand as he/she is programming the CNC trainer. Contestant should narrate what they are doing while they are doing it to ensure the judge can see/hear that they are following the proper sequence.

*Consider Safety when placing your camera(s).

o Record the entire demonstration without edits. Record the entire process in one unedited recording session.

*Video submission should be linked into the PDF file resume.

Scoring Information

The following pre-submission items will be judged by industry professionals.

o o o

o

Note:

http://updates.skillsusa.org/

http://www.skillsusastore.org/

http://www.speedtest.net/


Note:

Note for Virtual Competitions:




Source:

Source:

Source:

http://www.nctm.org/

http://www.ncte.org/standards

2021 MILL TEST

4 3 2 1

1.725

.425

B

G 1.450

2x

1.000

B

1.250

1.500

.005 A

B

(3.000)

Stock

2.000

2.500

F F

.638

A

SECTION G-G

.250

2x 45°

G C

1.750

2x 1.500

(4.000) Stock

3.500

2x .406

2x 1/4-20 UNC - 2B

V 0.300 X 90°

-$- .008@ A B C

R.250 TYP

.005 A B C

.125 2x 1.175 H

A

DETAIL H

2x .100

.160

.360 .925

2x 0.2750

-$- .005 A B C

SECTION F-F

.475

I .005 A

TITLE

A

2020

UNLESS OTHERWISE SPECIFIED: INTERORET GEOMETRIC TOL PER: SkillsUSA CNC Milling

Notes:

1. Break all edges .015 max 2. All fillets .03 max

DIMENSIONS ARE IN INCHES

TOLERANCES:

FRACTIONAL .015

ANGULAR 1

ASME Y14.5M 1994

MATERIAL:

6061 ALUMINUM FINISH:

SIZE

DWG NO

Milling

REV

.005 A B C .005 A B C

R1.250

R.188

.005 A B C

R.500 TYP

3. 125 RA max all over

4 3

TWO PLACE DECIMAL .010

THREE PLACE DECIMAL .005

FOUR PLACE DECIMAL .0005

2

SEE NOTES

DO NOT SCALE DRAWING

B

SCALE

2020 -

1:1 SHEET 1 OF 1

1

2

Features that must be programmed

(N10) Radius slot 2x

1

(N2, N9) Island; Chamfer

B (N5, N6) Reamed Hole 2x B

(N3) Keyway

(N4, N9) Pocket; Slot; Chamfer

(N1) Top

(N7, N8, N9) Threaded hole; Chamfer 2x

A A

2 1

4 3 2 1

SkillsUSA 2020: Setup Sheet D D

XY ZERO

(G54)

C

1.00

4.00

3.00

.05

DETAIL A DETAIL B

.150

C

.150

Z ZERO JAW DEPTH

B B

A

B

A

4 3 2

DIMENSIONS ARE IN INCHES

TOLERANCES: A FRACTIONAL ±.015 ANGULAR ±1 TWO PLACE DECIMAL ±.010

THREE PLACE DECIMAL ±.005

FOUR PLACE DECIMAL ± .0005

1

Part Number M2020 Operation 1 of 1 Machine Mini Mill EDU Material 6061 Aluminum Stock Size 1" x 3" x 4" Workholding 6" Vise Fixture Step Jaws

Contestant #: Milling Sequence & Score Card

Contest Name:

Sequence: N1 Cutting Parameters Features Points Y Results N

Tool Number: T1 Speed: 3000 RPM

Feed: 100 IPM

5

Tool Description: 2.000 Dia. Shell Mill

Coding Instructions: Face mill top of part

Followed Instructions? 5



Feed: 75 IPM

D2- Dia. Offset: .625"

20

Tool Description: .625 Dia. End Mill

Coding Instructions: Rough and finish mill island




Feed: 40 IPM

D9- Dia. Offset: .4.0"

20

Tool Description: .16 WD x 4.00 Dia. Slot Mill

Coding Instructions: Mill keyway




Feed: 50 IPM

D3- Dia. Offset: .375"

45

Tool Description: .375 Dia. End Mill

Coding Instructions: Rough and finish mill pocket and slot


1 of 3

CNC Competition Tool Tip Information

Mill Project

ill T4 .205 drill tip angle 140 degrees

TS tap has 3 tapered threads or .150 tapered length

ill T6 .265 drill tip angle 140 degrees

All T7 reamer tip .041tip length

II TS sharp point, no flat

no 3/8" ball nose end mill is programmed from center of the ball tip

Lathe Project

T1010 carbide inserted drill 4 degree included angle

ill All lathe tools program from the leading edge

2 of 3


Contest Name:



Feed: 48 IPM

10

Tool Description: .2657 Dia. Drill

Coding Instructions: Pre-drill for reaming


Sequence: N6 Cutting Parameters Features Points Results N

Tool Number: T7 Speed: 1000 RPM Feed: 10 IPM

10

Tool Description: .275 Dia. Reamer

Coding Instructions: Ream hole




Feed: 48 IPM

10

Tool Description: .205 Dia. Drill

Coding Instructions: Pre-drill for tapping




10

Tool Description: 1/4-20 Tap

Coding Instructions: Tap hole


3 of 3


Contest Name:


Tool Number: T8 Island & Pocket Speed: 6500 RPM Feed: 100 IPM Holes Speed: 6500 RPM Feed: 35 IPM

30

Tool Description: .500 Dia. Chamfer Mill

Coding Instructions: Chamfer mill around island and pockets; chamfer for

tapped holes. NOTE: Offset # 8 is set to .250 Dia.

Programming to the geometry (profile) of island and

pockets at a Z depth of (negative) -.200 will machine

the chamfer to size Followed Instructions? 5



90

Tool Description: .375 Dia. Ball End Mill

Coding Instructions: Ball mill slots


1 of 10

T1 CNC Milling Cutters

Product information

Ordering code

ISO

ANSI

Material ID

RA245-051R19-12H

RA245-051R19-12H

5738674

Bar code 80015629

Product Description

CoroMill® 245 face milling

cutter

tool cutting edge angleKAPR

cutting diameterDC maximum

45 deg

2 inch

cutting diameterDCX 2.49201 inch

cutting item countCICTP1 5

cutting item countCICTTOT 5

part2 of cutting item interface identifiersCUTINT_MASTERP1 COR: CoroMill 245 -size 12 (R245-12T3)

depth of cut maximumAPMX 0.24 inch

depth of cut maximumAPMXFFW

tool style codeTSYC

0.24 inch

RA245..Rxx

maximum ramping angleRMPX 0 deg

cutting pitch differentialCPDF 0

peripheral effective cutting edge countZEFP 5

2 of 10


Product information

Ordering code

ISO

ANSI

Material ID

A316-16SL442-06208P 1730

A316-16SL442-06208P 1730

6874253

Bar code 7.32322E+12

Product Description

CoroMill® 316 solid carbide head for square shoulder

milling

cutting diameterDC

cutting diameter face contactDCF

Corner radiusRE

depth of cut maximumAPMX

maximum ramping angleRMPX

center cutting capabilityCCC

tool style codeTSYC

peripheral effective cutting edge countZEFP

adaptive interface machine directionADINTMS

gradeGRADE

basic standard groupBSG

coolant entry style codeCNSC

0.625 inch

0.565 inch

0.03 inch

0.751968 inch

5 deg

0

A316..SL..P

4

Coromant EH -inch - E16

1730

COROMANT

0: without coolant

3 of 10


Product information

Ordering code

ISO

ANSI

Material ID

RA216.24-2450AAK18P 1620

RA216.24-2450AAK18P 1620

5739458

Bar code 11560651

Product Description

CoroMill® Plura solid carbide square shoulder end mill

cutting diameterDC

cutting diameter face contactDCF

Corner radiusRE



center cutting capabilityCCC

tool style codeTSYC

usable lengthLU



connection diameter toleranceTCDCON

0.375 inch

0.34374 inch

0.01563 inch

1.1252 inch

5 deg

1

RA216.2x..AK..P

1.1252 inch

4

Cylindrical shank without clamping features -inch: 3/8

h6

gradeGRADE 1620

Holder Assembly

extention out of holder 1.5 inch minimum

4 of 10


Product information

Ordering code

ISO

ANSI

Material ID

460.1-0520-016A0-XM GC34

460.1-0520-016A0-XM GC34

6241388

Bar code 26241388

Product Description

CoroDrill® 860 solid carbide

drill

cutting diameterDC

achievable hole toleranceTCHA

usable lengthLU

usable length diameter ratioULDR



gradeGRADE

SubstrateSUBSTRATE

coatingCOATING

tool style codeTSYC



0.2055 inch

H9

0.646 inch

3.154

Cylindrical shank (DIN1835-A / DIN6535-HA) -metric: 8

h6

H10F

HM

Uncoated

860.1..A1-NM (8xD)

COROMANT

4: axial concentric entry on circle

Holder Assembly


5 of 10


Product information

Ordering code

ISO

ANSI

Material ID

T300-NM100AE-1/4 D150

T300-NM100AE-1/4 D150

6182751

Bar code 26182751

Product Description

CoroTap™ 300 cutting tap with spiral

flutes

thread diameter sizeTDZ

threads per inchTPI

thread diameterTD

premachined hole diameterPHD

blind hole function propertyBHFP

thread tolerance classTCTR


usable lengthLU


gradeGRADE

tool style codeTSYC

SubstrateSUBSTRATE

UNC 1/4 20

20

0.250 inch

0.2055 inch

1

2B

DIN/ANSI

1.2915 inch

Tap shank ANSI -inch: 0.255 x 0.286

HSS-E-PM

E886

HSS-E-PM

Holder Assembly


6 of 10


Product information

Ordering code

ISO

ANSI

Material ID

460.1-0675-020A0-XM GC34

460.1-0675-020A0-XM GC34

6241404

Bar code 26241404

Product Description

CoroDrill® 460 solid carbide

drill

cutting diameterDC


usable lengthLU

usable length diameter ratioULDR



gradeGRADE

SubstrateSUBSTRATE

coatingCOATING

tool style codeTSYC



0.265748 inch

H9 0.834646

inch

3.14074

Cylindrical shank (DIN1835-A / DIN6535-HA) -metric: 8

h6

GC34

HM

PVD

460.1..A0-XM (3xD)

DIN 6537 K

0: without coolant

7 of 10


Product information

Ordering code

ISO

ANSI

Material ID

435.T-0700-A1-XF H10F

435.T-0700-A1-XF H10F

6266842

Bar code 26266842

Product Description

CoroReamer™ 435 solid carbide

reamer

basic standard groupBSG SubstrateSUBSTRATE

coatingCOATING


connection size codeCZC

connection diameterDCON

functional lengthLF

cutting edge lengthL

usable lengthLU

handHAND

flute countNOF


diameterDC

COROMANT

CARBIDE

Uncoated

Cylindrical shank (DIN1835-A / DIN6535-HA) -metric:

8

0.315 inch

3.89567 inch

0.629921 inch

2.51969 inch R

6

H7

.275590 inch

8 of 10


Product information

Ordering code

ISO

ANSI

Material ID

A316-12CM600-05045G 1030

A316-12CM600-05045G 1030

5722559

Bar code 12422244

Product Description

CoroMill® 316 solid carbide head for chamfer

milling

tool cutting edge angleKAPR

cutting diameterDC

maximum cutting diameterDCX




gradeGRADE

SubstrateSUBSTRATE

coatingCOATING


tool style codeTSYC


45 deg

0.11811 inch

0.5 inch

0.190945 inch

6

Coromant EH -inch - E12

1030

H10F

PVD COROMANT

A316..CM..G

0: without coolant

9 of 10

T9

Product information

Ordering code

ISO

ANSI

Material ID

Bar code

Product Description

CoroMill® 329 groove milling

cutter

insert seat size codeSSCM

insert seat size codeSSCN


connection size codeCZC

cutting diameterDC

cutting depth maximumCDX

connection diameterDCON

cutting widthCW


functional lengthLF

maximum overhangOHX

body half taper angleBHTA

CNC Milling Cutters

AQD-H-102Y25-M

AQD-H-102Y25-M

5722494

12440120

H

H

AArbor -ISO 6462 -A (hexagon socket head cap screw) -inch: 3/4

42433

4 inch

0.590984 inch

0.75 inch

0.15748 inch

6

1.96902 inch

1.96902 inch

0 deg


Product information

Ordering code

ISO

ANSI

Material ID

1B232-0953-XA 1620

1B232-0953-XA 1620

6259446

Bar code 26259446

Product Description

CoroMill® Plura solid carbide ball nose end

mill

cutting diameterDC

corner radiusRE1



usable lengthLU



tool style codeTSYC


gradeGRADE

SubstrateSUBSTRATE

0.375039 inch

0.18752 inch

0.75 inch 15

deg

0.75 inch

2

Cylindrical shank without clamping features -inch: 3/8

1B232-XA (2)

h6

1620

H10F

coatingCOATING PVD

Holder Assembly


10 of 10

2021 MILL TEST

CNC Milling Template % O00002

G17 G40 G80 G0 G53 G90 Z0

N1 T1 M06 (2.0 FACE MILL) S3000 M03

G40 G80 G98 G00 G90 G54 (ENTER INITIAL X & Y COORDINATES) G43 H01 Z1.0 M08

(ENTER TOOLPATH CODE)

M9 M5 G0 G28 G91 Z0 M1

N2 T2 M06 (0.6250 ENDMILL) S7125 M03



M9 M5 G91 G28 Z0. M01

N3 T9 M06 (4.0 DIA SLOT MILL) S1400 M03

G40 G80 G98 G00 G90 G54 (ENTER INITIAL X & Y COORDINATES) G00 G43 H9 Z1.0 M08


M9

M5 G00 G91 G28 Z0 M01

N4 T3 M06 (.375 DIA. ENDMILL) S8100 M03



M9

M9

M5 G91 G28 Z0. M01

N5 T6 M06 (.2657 DIA. DRILL) S8100 M03



M9

M5 G00 G91 G28 Z0 M01

N6 T7 M06 (.275 DIA. REAMER) S1000 M03



M5

M5 G00 G91 G28 Z0 M01

N7 T4 M06 (.205 DIA. DRILL) S8100 M03



M9 M5 G00 G91 G28 Z0 M01

N8 T5 M06 (.250 X 20 DIA. TAP) S1500 M03



M9

M9

G00 G91 G28 Z0 M01

N9 T8 M06 (.500 DIA. CHAMFER MRILL) S6500 M03 G40 G80 G98 G00 G90 G54 (ENTER INITIAL X & Y COORDINATES) G43 H08 Z1.0 M08


M9 M5 G00 G28 G91 Z0 M01

N10 T10 M06 (.375 DIA. BALL END MILL) S7500 M03 G40 G80 G98 G00 G90 G54 (ENTER INITIAL X & Y COORDINATES) G43 H10 Z1.0 M08


M5 G00 G91 G28 Z0 G00 G28 Y0 M30 %

Documents

Virtual SkillsUSA CNC Milling Specialist Project