Mumbai University > Mechanical Engineering > Sem 7 > CAD CAM CAE

Marks: 5 Marks

Year: Dec 2016

Formats for Manual part programming can be classified as

1. Manual - Absolute Part Programming
2. Manual - Incremental Part Programming

a. Absolute Part Programming

In The Absolute format that is used in programming we generally used the final destination co-ordinates for representing the tool path for example we want to go to point B from point A. Then the black that can be represent will be as follows.

G00 G90 G71 (Absolute Program Matrix)

G00 X50 Y50 (initial Co-ordinate) i.e. (a)

G01 X150 Y50 G (Final Co-ordinates (b))

Here in the above case the co-ordinate of point (X) is 1550 mm away from origin which is measured in Absolute quantity.

b. Incremental Prat Programming

In the incremental part programming method we just add the distance or the units to be moved with respect to the 's' increment when added to previous point helps to identify the final co-ordinate.'

For Example we write the above program in incremental co-ordinates it would be

G00 G91 G71 (Incremental Mode, Matrix)

G00 X50 Y50

G01 X50 Y0 (Incremental to 50 units X direction only)

In this way the above two programming method are used in manual part programming.