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Showing posts with label Tutorials. Show all posts
Showing posts with label Tutorials. Show all posts

CNC Programming Examples - Step Turning CNC Lathe

CNC Mill Subprogram Example Joining Multiple Arcs G02 G03 G41


CNC milling program to describe how two or more radii can be joint together in a cnc mill program.

CNC Mill Subprogram Example


CNC Part Program

N10 T1 H1 M6 G43 M3
        N20 F150 S250
        N30 G0 X-21 Y50 Z0.5
        N40 G0 Z0
        N50 M98 P040050
        N60 G49
        N70 G0 Z50
        N80 M30

Subprogram

O0050
        N10 F160 S400
        N20 G0 Z-2.5 G91
        N30 G1 G90 X5 Y50 G41      (P1)
        N40 G2 X22 Y85.23 I45 J0   (P2)
        N50 G3 X78 Y85.23 R45      (P3)
        N60 G2 X78 Y14.77 R45      (P4) 
        N70 G3 X22 Y14.77 R45      (P5)
        N80 G2 X5 Y50 R45          (P1)
        N90 G0 G40 X-21
        N100 M99

G M S T Codes Explanation

Code Description
G00 Rapid traverse
G01 Linear interpolation
G02 Circular interpolation CW
G03 Circular interpolation CCW
G40 Cutter compensation cancel
G41 Tool nose radius compensation left
G43 Tool length compensation + direction
G49 Tool length compensation cancel
G90 Absolute command
G91 Increment command
M03 Spindle start forward CW
M06 Tool change
M30 End of program (Reset)
M98 Subprogram call
M99 End of subprogram
T Tool
S Speed
F Feed

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CNC Pocket Milling Program Example – Peck Milling

CNC milling program example which shows how a cnc program can be made to machine Pockets on a cnc mill.
This program example uses Peck milling to cut material to machine a rectangular and one round pocket.
Contents

CNC Pocket Milling Program Example


Main Program

Milling cutter diameter: 10mm
N05 G55
            N10 M6 T2 H3 G43 M3
            N15 S1000 F60
            N20 G0 X9 Y9 Z1
            N25 G1 Z0
            N30 M98 P030035
            N35 G0 Z1 G90
            N40 X42 Y38
            N45 G1 Z-2 F30
            N50 X47 F300
            N55 G3 X47 Y38 I-5 J0
            N60 G0 Z100
            N65 G49
            N70 M30

Subprogram

O0035
            N05 G1 Z-2 G91 F30
            N10 X10 F100
            N15 Y36
            N20 X-10
            N25 Y-36
            N30 M99

Explanation

Although this cnc mill program is self explanatory
M98 P030035
this code mean call Subprogram No. 0035 three times.

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Multi Start Threads with Fanuc G76 Threading Cycle

Fanuc cnc controls has no direct threading cycle for cutting multi start threads on cnc. But you can cut multi start threads on a cnc with fanuc control by using Fanuc G76 Threading Cycle.
Related: Fanuc G76 Thread Cycle for Dummies

Multi Start Threads with Fanuc G76 Threading Cycle
There are multiple techniques for cutting multi-start threads on cnc with Fanuc G76 threading cycle. Here is one of them.
This cnc programming example uses cnc subprogram call to cut multi-start threads on Fanuc cnc.

CNC Main program
N50 G00 X48 Z5
                N60 M98 P0034713

CNC Sub Program

N10 G76 P020000 Q100 R0.05
                N20 G76 X42 Z-15 P974 Q200 F4.5
                N30 G00 W1.5
                N40 M99
The above cnc main program calls the 4713 sub-program three times.

CNC Programming Examples - Peck Milling

CNC Milling Machine Programming Example for Beginners

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CNC Mill Program Example

A very simple cnc milling machine programming tutorial for beginner level cnc machinists.

An easy to understand cnc mill programming code. This is a cnc g code example without the use of any cnc canned cycle.
Related cnc mill program examples
  • CNC G02 Circular Interpolation Clockwise CNC Milling Sample Program
  • CNC Milling Circular Interpolation G02 G03 G-Code Program Example


Beginner level cnc program examples for CNC Lathe
  • Fanuc CNC Program Example
  • CNC Programming for Beginners a Simple CNC Programming Example
  • CNC Programming for Beginners a CNC Programming Example

CNC Milling Machine Programming Example for Beginners
N05 G0 G90 X40 Y48 Z2 S500 M3
        N10 G1 Z-12 F100
        N15 X20 Y18 Z-10
        N20 G0 Z100
        N25 X-20 Y80
        N30 M2
N05 The tool traverses in rapid traverse on P1, three axes concurrently, spindle speed = 500 rpm, clockwise
N10 Infeed on Z-12, feed 100 mm/min
N15 Tool travels on a straight line in space on P2
N20 Retraction in rapid traverse
N30 End of program

CNC Programming Examples - Bolt Hole Circle

Fanuc G72.1 G72.2 Figure Copy Program Example (Bolt Hole Circle)





This CNC program example shows how both G72.1 and G72.2 figure copy functions can call one-another in one part program, read Programming Notes below carefully.
Contents

* Best ebooks for CNC programming: 
CNC Programming Basics 
G-Code and M-Code 
CNC programming 
G-Code Reference 
CNC Machine Tutorial 

Programming

Fanuc G72.1 Rotational Copy

Using G72.1 Rotational Copy G-code a figure specified by a subprogram can be repeatedly produced with Rotational movement.
Read G72.1 definition with program example Fanuc G72.1 Rotational Copy (Figure Copy Function CNC Mill)

Fanuc G72.2 Linear Copy

Using G72.2 Linear Copy G-code a figure specified by a subprogram can be repeatedly produced with Linear movement.
Read G72.2 definition with program example Fanuc G72.2 Linear Copy (Figure Copy Function CNC Mill)

Fanuc G81 Drilling Cycle

G81 drilling cycle is used for simple drilling/spot drilling operations.
Read G81 drilling cycle definition with program examples Fanuc G81 Drilling Cycle

Programming Notes

Specifying two or more commands to copy a figure
  1. G72.1 cannot be specified more than once in a subprogram for making a rotational copy (If this is attempted, alarm PS0900 will occur).
  2. G72.2 cannot be specified more than once in a subprogram for making a linear copy (If this is attempted, alarm PS0901 will occur).
  3. In a subprogram that specifies rotational copy, however, linear copy can be specified. Similarly, in a subprogram that specifies linear copy, rotational copy can be specified.

Fanuc G71.2 G72.2 Program Example


Main program
        O4000 ;
        N10 G90 G00 G17 X240. Y230. Z100. ; (P0)
        N20 G72.1 P4100 X120. Y120. L8 R45. ;
        N30 G80 G00 X240. Y230. ; (P0)
        N40 M30 ;
Sub program Rotation copy (G72.1)
        O4100 N100 G72.2 P4200 I0 J20. L3 ;
        N200 M99 ;
Sub program Linear copy (G72.2 )
        O4200 N110 G90 G81 X120. Y180. R60. Z10. F200. ; (P1)
        N210 M99 ;

SOLIDWORKS Tutorials


SOLISWORKS Tutorials

* The Best EBOOK: SOLIDWORKS for Designers

More than ninety percent of all design and drafting jobs in today’s market require the use of some computer aided design application.  In some cases that application is Autodesk Inventor or Solidworks, but most commonly it is SolidWorks. With a good market share, SolidWorks is probably the best application a prospective job hunter can learn. Courses in the software can cost several hundred dollars. For someone out of work, that investment can be hard to find. But the money spent my be life changing for those looking for work.

Among the many ways to obtain SOLIDWORKS training is MCAD, which is a top reseller of the program, offers user support and comprehensive instruction. There are also a variety of free SOLIDWORKS tutorials that can be accessed on the internet. It is important to take the time to ensure that individuals who will use the software are properly trained to use its features to their fullest potential.

Globally used by millions of businesses, SolidWorks is a 3D mechanical computer aided design software program. To assist engineers and designers in significantly impacting the productivity of a company, it is necessary to provide professional training. For that reason, SOLIDWORKS tutorials focus on the important concepts and skills that are crucial to successfully using the software.

Table Of Contents:
1. AutoCAD vs Solidworks – Which one do I learn?
2. Create a simple 3D object
3. Easy to follow 3D sketching using Solidworks
4. How to draw a coke bottle
5. Solidworks tutorial: sheet metal
6. Solidworks tutorial: Solidworks equation
7. Solidworks tutorial: How to Create a Sphere in Solidworks
8. Solidworks tutorial: Circular pattern
9. Solidworks tutorial: How to mirror parts
10. Solidworks tutorial: Using the LOFT command
11. Solidworks tutorial: SWEEP
12. Solidworks tutorial: Extrude

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