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01/09/09 16:13

'I and J codes'


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I and J codes

James Madison from San Clemente Ca. -

I am writing a program by hand using a code gen program until my mastercam arrives next week.I need some help with I and J codes. I am making a rectangle with radiused corners where r=.5 the dimensions are 3.25 x 1.83 I am starting at g55 as my x0 y0 and running the tool(1") along the top of the rectangle to the left corner where my line of code reads g2x3.75y-.25j-.75 I get a good corner.I then run down to g1x3.75y-1.58 I cant seem to figure out the I-J codes to turn my arc and make the bottom of the rectangle. can any one give me some help? much appreciated!

Comment #1 James Madison from San Clemente Ca. -

" along the top of the rectangle to the left corner "

I meant to say right corner sorry.


Comment #2 townsend from ohio -

Why not just use x and y moves and a radius command? Here is how I would write a pass 1 inch deep using a .500 dia. carbide endmill around a block with your dimensions.

O0001

G80 G90 G99 G54

M06 T10 (.500 CARBIDE ENDMILL)

M03 S1000

M08

G00 G90 X0.5 Y2.08

G43 Z.1 H10

G01 Z-1.F1.

G03 X-0.25 Y1.33 R0.75F5.

G01 Y0.5

G03 X0.5 Y-0.25 R0.75

G01 X2.75

G03 X3.5 Y0.5 R0.75

G01 Y1.33

G03 X2.75 Y2.08 R0.75

G01 X0.5

G00 Z0.1

G00 G80 Z.1

M09

G28 G91 Z0

M05

G28 Y0

M30

%


Comment #3 Panhead from Cocoa, Florida -

i would just enter it in a conversational event as a frame mill

Comment #4 Panhead from Cocoa, Florida -

see now i know im being stupid duh

Comment #5 Peter (3) from Melbourne Australia -

Just remember I J K Are the distance from the start point to the centre point.

Comment #6 Hisham (196.219.46.130) -

I need a software who converts DXF or DWG files to CNC programs suitable for Messer Griesheim plasma cutting machine. thanks.

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