Im apprenticing, and I was setting up a job yesterday and I took the manual home to read up on it and get the programming where I want it.
Basically, everything works the way its supposed to except for the leadout after the finish cut. The final hole diameter is 2.39", roughing out to 2.38 before the finish.
Here is my code
dont pay attention to the z values, those were just there so we could see the toolpath in the air above the part.Code:T1M6 (5/8 END MILL) G90G54G0X0.0Y1.195S2400M3T2 G43Z2.0H1 G42D1F14.0 G65X1.195Y0.0 G0X0.0Y0.0 Z1.0 G2X0.0Y1.19R0.595F14. (LEAD IN) X0.0Y-1.19R1.19 X0.0Y1.19R1.19 X0.0Y0.0R0.595 (LEAD OUT) G2X0.0Y1.195R0.5975 (FINISH LEAD IN) X0.0Y-1.195R1.195 X0.0Y1.195R1.195 X0.02Y1.1948R1.195 (OVERLAP) X0.0Y0.0R0.5975 (LEAD OUT) G65X-1.195Y0.0 G40G0Z2.
Basically everything works flawlessly until I get to the finishing lead out - rather than arc to x0y0 it seems to move linear. I tried removing the overlap section, the G65 section, both at the same time, etc and it still seems to move linearly. It doesnt make any sense because the previous lead out works the exact same and the numbers are spot on, so its not an issue of the NC thinking the radius is too large or anything. We tried a bunch of things, and something of interest to note is that if a g1x0y0 is placed after the roughing lead out line, then that lead out behaves in the exact same manner as the finishing lead out behaves; not the desired way.
Im using a 5/8" end mill, and the program starts at G54 x0y0.3125 (the compensation is perfect here), But when it does the lead out move to x0y0, with the comp still on it should be in the same place it starts..
Really confused here.
The control im using is a Milltronics centurion (I dontknow what you guys think of the machine, but we all hate it here, its so finicky and a pita.. hence this issue).
Any help would be greatly appreciated, like I said I am new, and the guy I am apprenticing off of hates cutter comp and never uses it, yet I only see advantages, but Im thinkin that perhaps this isnt a cutter comp issue at all? I want to get this to work, we do use mastercam and for the time being just used it to generate the path for the circle, but I dont feel there is any need to use mastercam for such simple things, and its the easy way out in this case, rather than actually figuring out where my syntax may be incorrect. Thats kind of the way Id like things to change in this shop, it seems guys know what works, but not HOW it works, or WHY.. which just isnt the way I work, with anything, ever, I NEED to know. For instance I am the only one in the shop who really understands a G28 command.. guy im apprenticing off of thought the values you input after g28 were where the machine moved to (ie g28y0z0, he thought it brought y to home and z to home, rahter than those values being an intermediate point before the machine returns to reference, and it just so happens our reference is home position, so thats how he thought it worked.. but I disagreed citing thebook and we did a little experiment and low and behold I was right).
Thanks