CNC Lathe Programming Example
A simple cnc lathe programming example. This cnc programming example will show how to program contours like chamfer taper grooves and arc. This cnc program will use two tools for. CNC Lathe Programming Example 1 – Lathe Program of Chamfering Instruction: N10 G92 X70 Z10 (set up the coordinate system and define the position of tool setting point) N20 G00 U W (from the programming starting point to the center of the front end face of the workpiece) N30 G01 U26 C3 F (chamfering 3 ? 45 °right angle).
Proggam to program and understand that even a beginner level CNC machinist can understand and program such sample codes. No extra G-code or technique is required. The linear movement programmed with G01 G Code can be linked to the movement of the next cnc program block by a chamfer C or a radius R. Related: G01 Chamfer and….
Selca G21 Linking radius Selca G21…. But for beginner level cnc machinists it is better to…. Read and learn about a G code. Here is a cnc program example for Progrwm cnc control. Also chamger. An easy to understand cnc mill programming how to format sandisk cruzer blade. This is a cnc g code example without the use….
Siemens Sinumerik programming example to show how cnc machinists can machine corner Radius. Sinumerik CNC control uses…. This CNC mill oj exercise will give you more idea to understand drawing and how to find exact coordinate of each drawing point. Completely based on G91 Incremental Dimensioning System,…. CNC machine workshops deal with variety of components, of course cnc machinists program and machine them. But a cnc machinists also should understand and practice new and economical ways to….
Ob to understand cnc mill coding tutorial from novice…. CNC milling sample program with program code explanation. As well as programming of straight…. Chamfer and Radius Program Example with G Mostly works on Fanuc and similar CNC controls. Home About. All rights reserved.
Nov 04, · The linear movement programmed with G01 G Code can be linked to the movement of the next cnc program block by a chamfer (C) or a radius (R). Related: G01 Chamfer and Corner Rounding a CNC Program Example. Mar 08, · A simple cnc lathe programming example. This cnc programming example will show how to program contours like chamfer taper grooves and arc. This cnc program will use two tools for machining. The first tool used in this cnc programming example is a turning tool and the second one is a . Sep 30, · I'm taking a college CNC lathe programming class, but I've never run a lathe before. I need to cut chamfers but the videos I'm watching don't explain how, they just cut them. I know how to use linear interpolation with the G01, but angled chamfers just don't seem to be explained anywhere, even in the Haas manual.
Simple CNC Lathes use a Z-axis, which is parallel to the spindle axis, and an X-axis, which is at right angles to the spindle. X-Axis runs top to bottom while Z-axis runs left and right…. The G-Wizard E ditor will automatically switch its axis display when you change the machine type from mill to lathe and vice versa. The next step up from a 2-axis lathe would be a 3-axis lathe. Rather than add the Y-axis, a 3-axis lathe typically has X, Z, and C axes. C is a rotary axis parallel to the spindle axis and Z.
In essence, it allows you to clock the spindle to specific angles. A three axis lathe with live toolign can do fairly arbitrary milling jobs on the part in the lathe chuck. In diameter mode, X-axis values specify diameters, while in radius mode, they specify a radius from the axis. As you would expect, diameter mode X-axis values are exactly twice what the radius mode values are, so it is important that you know which mode your lathe is using. G-Wizard Editor has a revision command that lets you change programs back and forth between diameter and radius mode:.
Some machines may also have the ability to change between radius and diameter mode using special g-codes. You can set whether GW Editor defaults to radius or diameter in the post too.
The difference is you can mostly ignore the Y coordinate though there are lathes that have Y too! Once you get used to it, lathe programming is quite a bit easier than mill programming.
You are typically trying to create a profile of some kind. The X-axis zero is always chosen to be the spindle center line when turning for all sorts of reasons. But, the part is rarely against the chuck face, so this method introduces more complications in locating positions on the actual part.
But, we can do even better. The disadvantage is that when machining starts, there is no finished part to touch off. Machinists typically use an allowance, or make a quick facing cut to create the finished end to get past that problem. Different controls may be set up with differing numbers of digits to select the tool and wear offset.
CNC Lathes are set up this way so that each tool can have more than one wear offset. This is done because turning work often needs to be to very tight tolerances, and the same tool is often used for multiple features on the part.
By using a different wear offset for each feature, the machinist can measure the parts as they come off and tweak the wear offset so each feature is to the specified tolerances. This all assumes your lathe has a tool turret. It may not—some lathes use Gang Tooling. Suffice to say that with gang tooling, the tools are mounted on the slide and the program selects the tool by explicitly programming slide motions on the X and Z axes.
Many controls provide a feature for just that purpose called automatic chamfer and automatic corner rounding. To use the automatic corner break feature, the G01 must move in only one axis—X or Z. Using the chart, choose which axis is moving and in what direction. For each axis and direction, there are two possible chamfers or corner radii. Choose the one you want and that tells you the sign of the value.
So, to give a chamfer, we use C For a radius, we use R That lets you dispense with the chart. Line N is a move purely in Z from right to left. We want to put a clockwise arc in with radius 0. Looking at the diagram, that means we want a positive R, so we use R0. Next up is a chamfer at line N Each side of the triangle with chamfer as hypotenuse is 0. Modify the program you wrote in 4 to use the automatic corner break function and include both chamfers and radiused corners.
Home Learn Blog. Back to Homepage. Shop All Our Products. Manual is Faster. CNC is Faster. Many machines also implement a gcode that lets you switch back and forth: — G Radius mode. For the Z-axis zero, there are three popular spots to choose from: — Chuck face: The only advantage to this method is it is very each to touch the chuck face. Exercises 1. Find out whether your lathe starts up in Diameter or Radius mode.
Using GWE, write some simple lathe programs that turn some simple profiles. Next Article: Relative vs Absolute Moves.