bf20 cnc conversion - cnczone

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BF-20 SERIES MILL CNC CONVERSION

BF-20 SERIESMILLING MACHINECNC CONVERSIONDESIGN COPYRIGHT 2010 - ERIC WILDERSON

REVISION -

DISCLAIMER: PLEASE USE WITH CAUTION. CNC MILLING MACHINES AND OTHER HEAVYEQUIPMENT ARE DANGEROUS TO OPERATE. ERIC WILDERSON IS NOT LIABLE ACCIDENTSRESULTING FROM IN IMPROPER USE OF THIS DESIGN OR EQUIPMENT WHETHER IN WHOLE OR IN PART. CONSULT A PROFESSIONAL PRIOR TO USE. BF20-CNC-0000

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35.62

5.35

24.56

28.04

7.10

MAX 13.0MIN 2.0

MAX 10.43MIN 3.55

MAX TRAVEL ı # 9.44

MAX HEIGHT 36.00

MAX OFFSET 30.53

NOTES UNLESS OTHERWISE SPECIFIED:

BF20-CNC-0000


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REQUIRED PARTS LISTFIND NUMBER PART NUMBER DESCRIPTION QTY REQ VENDOR

1 92185A991 SHCS STAINLESS 10-32 X.750 24 MCMASTER CARR2 91292A137 SHCS STAINLESS M6 X 20MM 8 MCMASTER CARR3 95263A561 SHCS STEEL M6 X 25MM 2 MCMASTER CARR4 51203 BEARING THRUST 18MM ID 35MM OD 2 VXB BEARING5 7806K65 BEARING THRUST 9MM ID 20MM OD 3 MCMASTER CARR6 90710A140 NUT HEX STAINLESS M16 X 8MM THICK 2 MCMASTER CARR7 94205A260 NUT HEX NYLON LOCK STAINLESS M8 3 MCMASTER CARR8 91780A343 STANDOFF HEX 10-32 THREADED 2.00 LN 12 MCMASTER CARR9 96765A145 WASHER ROUND STAINLESS 11/32 ID 3/4 OD 3 MCMASTER CARR

10 A 5C 9-0808 SHAFT COUPLER RIGID .250 x .250 2 SDP-SI11 A 5C 9-1212 SHAFT COUPLER RIGID .375 x .375 1 SDP-SI12 KL23H2100-50-4B STEP MOTOR NEMA 23 570OZ-IN 3/8 IN SHAFT 1 KELING INC13 KL23H286-20-8B STEP MOTOR NEMA 23 495OZ-IN 1/4 IN SHAFT 2 KELING INC

FABRICATED PARTS LISTFIND NUMBER PART NUMBER DESCRIPTION QTY REQ NOTES

14 BF20-CNC-0010 X AXIS ADAPTER 2

15 BF20-CNC-0020 X AXIS BALL NUT ADAPTER 1 4

16 BF20-CNC-0030 X AXIS BALL SCREW 1

17 BF20-CNC-0040 Y AXIS ADAPTER 1

18 BF20-CNC-0050 Y AXIS BALL NUT ADAPTER 1

19 BF20-CNC-0060 Y AXIS BALL SCREW 1

20 BF20-CNC-0070 Z AXIS ADAPTER 1

21 BF20-CNC-0080 Z AXIS BALL NUT ADAPTER 1

22 BF20-CNC-0090 Z AXIS BALL SCREW 1

23 BF20-CNC-0100 X HOME/LIMIT SWITCH MOUNT 1 4 6

24 BF20-CNC-0110 Y HOME/LIMIT SWITCH MOUNT 1 4 6

25 BF20-CNC-0120 Z HOME/LIMIT SWITCH MOUNT 1 4 6

26 BF20-CNC-0130 X AXIS BALL SCREW MODIFICATION 1 6

FIND NUMBER TORQUE VALUE1 40 OZ-IN2 40 OZ-IN3 40 OZ-IN6 75 OZ-IN7 50 OZ-IN

TABLE I

TABLE II

NOTES UNLESS OTHERWISE SPECIFIED: 1. SEE TABLE I FOR REQUIRED HARDWARE AND VENDOR ITEMS PARTS LIST. 2. SEE TABLE II FOR FABRICATED ITEMS PARTS LIST. 3. FIND NUMBERS 12 & 13 (STEP MOTORS) MAY BE REPLACED WITH ANY NEMA 23 SIZE MOTOR BY THE USER. THIS MAY CHANGE THE SHAFT COUPLING AND STANDOFF LENGTHS REQUIRED TO MOUNT THE MOTORS TO THE ADAPTERS. 4 ITEM MAY NOT BE REQUIRED TO COMPLETE CONVERSION.

5. MCMASTER CARR PART NUMBERS ARE REFERENCED FROM CATALOG NUMBER 116. PART NUMBERS MAY REFERENCE BOXED QUANTITIES INSTEAD OF INDIVIDUAL PIECES. PLEASE VERIFY QUANTITIES PRIOR TO ORDERING. 6 INSTALLATION OF THESE PARTS REQUIRES MODIFICATION TO MILLING

MACHINE COMPONANTS. SEE SHEET XX FOR DETAILS. 7. FASTENER TORQUE SCHEDULE:

BF20-CNC-0000


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0.350SCALE

X AXIS ASSEMBLYMODIFICATIONS REQUIRED TO MACHINE TABLE SADDLE

SEE DRAWING BF20-MOD-0001 FOR DETAILS

X AXIS ASSEMBLY DETAIL SHOWN ON SHEET XXX

PARTS REQUIRED:2X BF20-CNC-0010

BF20-CNC-0020BF20-CNC-0030BF20-CNC-0130

Z AXIS ASSEMBLYZ AXIS ASSEMBLY DETAIL SHOWN ON SHEET XXX

PARTS REQUIRED:BF20-CNC-0070BF20-CNC-0080BF20-CNC-0090

Y AXIS ASSEMBLYY AXIS ASSEMBLY DETAIL SHOWN ON SHEET XXX

PARTS REQUIRED:BF20-CNC-0040BF20-CNC-0050BF20-CNC-0060

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A

A

SEE DETAIL A

3 2X

4X

REFERENCE

Y AXIS ASSEMBLY DETAILDETAIL A

SCALE 1.000

10

1

13

7

955

19

XX 18

17

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A

A

.75 STOCK

7.100

1.35 1.55

.800

.375 THRU

.800

.280

3.550

.9284 PLACES

.928 4 PLACES

4X .250.210 THRU

.375

2X .890

2.362 2.362

2X 60

1.97

1.181

2.362

2X .438 .250 FARSIDE THRU.266

.280

R TYP..19

2.73

DRAWING NOTES UNLESS OTHERWISE STATED: 1. MATERIAL: ALUMINUM 6061-T6 OR -T651 2. FINISH: HARD ANODIZE, TYPE III, COLOR: NATURAL GREY.

X AXIS ADAPTER

BF20-CNC-0010 1

A-ASECTION

ISOMETRIC VIEWFOR REFERENCE ONLY

SCALE 0.750

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748mm

12mm

13mm

17.8mm

717mm

17.8mm

8.9mm

8.9mm

6.35mm

DRAWING NOTES UNLESS OTHERWISE STATED: 1. MAKE FROM RM1605 BALL SCREW STOCK

X BALL SCREW

INITIAL RELEASE

BF20-CNC-0030

RM1605 BALL SCREWSCALE 0.800

M8 THREAD1.25mm PITCH

M8 THREAD 1.25mm PITCH

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AA

.50

1.50

2.362

.800

2X .928

2X .928

2.500

1.250

2X .928

.984.984

2X .928

1.42

.71

4X .250.210 THRU

.375

.375 THRU

.800

.28

.98

1.50

2X .438 .250 FARSIDE THRU.266

4X R.25


BF 20 ADAPTER, Y AXIS

BF20-CNC-0040

2.000SCALE

A-ASECTION


SCALE 1.000

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.375 STOCK

2.189

2X .258

1.500

.787

2X 1.316

2X .221

.750

2X 1.279

4X TAP -32 UNF-2B THRU.190

THRU1.13

DRAWING NOTES UNLESS OTHERWISE SPECIFIED: 1. MATERIAL: ALUMINUM 6061-T6 OR -T651 2. FINISH: HARD ANODIZE, TYPE III, COLOR: NATURAL GREY.

ADAPTERY AXIS BALLNUT

BF20-CNC-0050


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350mm

18mm

12.7mm

12mm

9mm

6.35mm

Y AXIS BALLSCREW

BF20-CNC-0060


RM1605 BALL SCREWSCALE 1.000


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4.72

2.36

1.890 1.890

1.575 1.575

.51

3.15

2X .394

2X 135

4.09

2X 2.756

1.575

.928 4 PLACES.75 STOCK

4X .25.210 THRU

.375

.928 4 PLACES

4X .375.348 THRU

.563

.500.6875 THRU1.400

R TYP..19

1.575 REF

2.362 REF


BF20-CNC-0070

BF 20 ADAPTER,Z AXIS


SCALE 0.750

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B.C.3.701

2X R1.154X 45

THRU1.45

1.375

.688

2.200

.875

1.00 STOCK

2X R.19

.375

1.000

2X .500

2X TAP -24 UNF-2B .500.3125

6X TAP -32 UNF-2B .375.190


ADAPTERZ AXIS BALL NUT

BF20-CNC-0080

DRAWING NOTES UNLESS OTHERWISE SPECIFIED: 1. MATERIAL: ALUMINUM 6061-T6 OR -T651 2. FINISH: ANODIZE, TYPE II, COLOR: BLACK

2.000SCALE

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550mm

12mm

20mm

30mm

16.9mm

9.53mm

Z BALL SCREW


BF20-CNC-0090

RM2005 BALLSCREWSCALE 1.000


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(40 mm REF)

( mm REF)48

14mm

15mm

7.5mm

2X 10.5 mm

(42 mm REF)

(10 mm REF)

( 28mm REF)

MODIFICATIONX AXIS BALL NUT

BF20-CNC-0130

DRAWING NOTES UNLESS OTHERWISE SPECIFIED: 1. THE PART SHALL BE MADE FROM THE RM1605 SERIES BALL NUT. 2. DIMENSIONS MARKED IN PARENTHESIS (REF) ARE A REFERENCE FROM THE PART BEING MODIFIED. THEY SHALL BE USED FOR SETUP AND INSPECTION ONLY. 3. CARE SHOULD BE TAKEN WHEN REMOVING MATERIAL FROM THE BALL NUT ASSEMBLY. MILLING OPERATIONS CAN CAUSE THE TEMPERATURE OF THE PART TO RISE, DAMAGING PLASTIC/RUBBER BEARING SEALS.

4.000SCALE

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A

A

(7.09 REF)

1.25

1.38

.50

.28

.03

(3.54 REF)CENTERLINE

.25

.63

2X R.188

(7.09 REF)

NOTES UNLESS OTHERWISE SPECIFIED: 1. DIMENSIONS SHOWN AS (X.XX) ARE FOR REFERENCE ONLY AND SHALL ONLY BE USED FOR LOCATING CENTERLINE AND ORIENTAION OF THE SADDLE. 2. THIS DRAWING OUTLINES MODIFICATIONS REQUIRED TO THE BF-20 SERIES MILLING MACHINE Y AXIS SADDLE.

X/Y AXIS SADDLEMODIFICATIONS

BF20-MOD-0001

A-ASECTION


SCALE 0.750

bf20 cnc conversion - cnczone

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