G and M codes

[tommmmy03]

I taking a CNC class and having a hard time writing out the programs. My teacher gave us a take home test. It's a 4 1/4 inch alum block where you have to drill some holes, use cutter, and use circular interpelation (sp). Anyways if someone could help I will find a way to put the drawing up. Is there any one on here that can help me? oh btw, I have to turn it in tomorrow

 

[Floor]

sorry, tommy, it has been since highschool i wrote CNC programs.

What's the problem exactly?

Just try to write down all the steps you normally would do on a regular (manual) machine step by step, keeping in mind
min, max rpms, diameter of the tool, idle and operating speeds cooling ON/OFF, shit like that. That's how I did it.

 

[kyle's srt10]

What CAD program are you using?:dontknow:

 

[tommmmy03]

we are not using a cad program. Just writing the code from a drawing then load it into the mill. Right now we are just learning the codes and the teacher had us doing all the math for tool comp and I and J instead of using R. I'm really having a hard time with this class. I've been a machinist for 28 yrs but never had to know g codes. All our machines were manual

 

[Floor]

Machines are dumb SOB's, you have to tell them everything step by step
G codes are predefined up to 99 so it knows what to do, M codes are informative mss to tell how to do it.

Can't find my old schoolbook right now but google it, you'll find some examples ... Good luck

 

[01VIPERGTS/ACR]

this is the kind of code i do all the time.this is for a turret punch.:rock:

G92X72.Y50.
G90
G06A.063B0
M13
M560
X1.628Y13.066T222
X2.128Y12.2
X1.629Y8.566
X2.129Y7.7
X1.5Y3.675
Y2.675
X7.601Y6.336
Y7.336
M690
M500
G72X39.907Y14.607
G66I1.961J330.01P1.Q.25T236C150.
G72X21.178Y-17.794
G78I37.425J60.76K28.38P.25Q.6D.063C150.76
G72X21.178Y-17.794
G78I34.575J89.07K-28.23P-.25Q.6D.063C179.07
G72X21.178Y-22.294
G78I37.425J89.14K-28.38P.25Q.6D.063C179.14
G72X21.178Y-17.794
G78I37.425J90.76K28.47P.25Q.6D.063C.76
G72X21.178Y-22.294
G78I37.425J90.76K28.47P.25Q.6D.063C.76
G72X21.178Y-17.794
G78I34.575J90.83K28.33P-.25Q.6D.063C.83
G72X2.448Y14.607
G66I1.961J209.99P-1.Q-.25C30.
G72X.733Y9.117
G66I2.85J300.P-1.Q-.25D-.02C120.
G72X.733Y13.617
G66I2.85J300.P-1.Q-.25D-.02C120.
G72X.751Y9.127
G66I1.96J30.01P1.Q.25C30.
G72X1.Y4.6
G66I2.85J270.P-1.Q-.25D-.02C90.
G72X2.158Y11.149
G66I2.J30.P-1.Q-.25D-.02C30.
G72X2.158Y6.649
G66I2.J30.P-1.Q-.25D-.02C30.
G72X21.178Y-22.294
G78I34.575J119.17K-28.33P-.25Q.6D.063C29.17
G72X7.101Y5.411
G66I2.85J90.P1.Q.25D-.02C90.
G72X21.178Y-22.294
G78I34.575J89.07K-28.23P-.25Q.6D.063C179.07
G72X28.697Y8.261
G66I2.85J270.P1.Q.25D-.02C90.
G72X35.622Y5.411
G66I2.85J90.P-1.Q-.25D-.02C90.
G72X38.465Y7.649
G66I2.J330.P-1.Q-.25D-.02C150.
G72X38.465Y12.149
G66I2.J330.P-1.Q-.25D-.02C150.
G72X39.908Y10.107
G66I1.96J329.99P1.Q.25C150.
G72X40.197Y6.649
G66I2.85J60.P-1.Q-.25D-.02C60.
G72X40.197Y11.149
G66I2.85J60.P-1.Q-.25D-.02C60.
G72X41.144Y4.6
G66I2.85J270.P1.Q.25D-.02C90.
M501
G70Y3.552
T245
G72X35.602Y8.261
G66I6.635J180.P-4.Q-.25
G72X28.697Y8.261
G66I21.596J180.P-4.Q-.25D-.02
G72X7.101Y5.411
G66I21.596J0P-4.Q-.25D-.02
G72X28.967Y5.411
G66I6.635J0P-4.Q-.25
G72X41.144Y4.6
G66I20.072J180.P-4.Q-.25D-.02
G72X21.072Y4.6
G66I20.072J180.P-4.Q-.25D-.02
G72X1.Y1.75
G66I20.072J0P-4.Q-.25D-.02
G72X21.072Y1.75
G66I20.072J0P-4.Q-.25D-.02
M13
M692
G50


 

[black pearl]

Sorry did not see this earlier. Post up a drawing and I can help you with the programs.