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I and J codesThis forum post has messages dated from 08/17/07 through 09/11/09, please be sure to read all the messages. If you feel it is old or outdated, please follow up with a question or comment and someone may be able to update it, or reply with newer information if you have it. cnc-forum - How To
| I and J codes 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! |
| " along the top of the rectangle to the left corner " I meant to say right corner sorry. |
| 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 % |
| i would just enter it in a conversational event as a frame mill |
| see now i know im being stupid duh |
| Just remember I J K Are the distance from the start point to the centre point. |
| I need a software who converts DXF or DWG files to CNC programs suitable for Messer Griesheim plasma cutting machine. thanks. |
| 1. i want more details about cnc programing. 2. and how could i take i j values( if it semicircle or arc) |
| I explain I and J in my book at cncbasics.com You can always go to my forum and ask a more specific question about G-Code. www.cncbasicsforum.com Thanks Mike in MN |
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