Applications for Custom Macro Programming Family of parts programming Custom cycles Canned or multiple repetition Program complex motions Parabolas, ellipses, etc Use variables to adjust dimensions that offsets alone can’t change “Smart” programs Macro programs can make decisions by using conditional statements. Haas CNC Lathe Programming. This Manual is the Property of Productivity Inc The document may not be reproduced without the express written permission of Productivity Inc. Nor may it be sold. The content must not be altered, nor may the Productivity Inc name be removed from the materials.
Hello, My name is Tom Stikkelman and welcome to my course on basic cnc programming for the 2-axis lathe.
This lecture covers the four basic G-codes used in a cnc program that control the motion and direction of the turn tool and creates a tool path that produces the shape of the part being machined.
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On this channel you can get education and knowledge for general issues and topics. A computerized numerical control (CNC) machine controls the tool with a computer and is programmed with a machine code system that enables it to operate with repeatability and minimal supervision. The same principles used in operating a manual machine are used in programming a CNC machine.
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Any of these G-codes can only be used once in each line or block of motion. Each line or block is a separate move. Once that move is complete the machine control executes the next block producing a continuous smooth motion along the part geometry until all the blocks are read and the tool retracts away from the part.
These G-codes are modal, which means that once they are active they do not need to be used again in the next block. So when the G1 code is active you do not have to use it again on the next line unless you are needing the use a G2, G3 or G0 (make sure that you use a zero and not a letter 'O' for the G0 command or the control will alarm out).
Close attention needs to be paid to the plus and minus values of the X and the Z coordinates ensuring the proper direction of the axes.
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- A plus value in X will make the part or geometry larger and minus will make the feature of the part smaller.
- The Z-axis moves towards the chuck in a minus direction and away form the chuck in a positive direction.