Milling a timing pulley ,tool go always to reference point

[andreas_georgakopoulos]

Hi..i try to mill a timing pulley..i use  a 2dcontour ,tool are like a slot mill (forming tool)

My machine are a Haas vf 4ss with a 210hrt 4 axis(a axis)

To make the cut i use the circular pattern in manufacture ,but when i read the g code i see unnecessary movements to g53 z0..every time I cut a new tooth. it takes a long time to go the tool to z reference point..

what have I done wrong??

i dont use tool orientation and my post are a haas ngc with a axis on

Andreas

[atdemo2019]

hi sir , kindly share your file..

[seth.madore]

In order to achieve the code you are looking for, this will require some post edits. We don't include this behavior natively in the post, as it can lead to potentially dangerous situations (crashes).

[andreas_georgakopoulos]

I also can't  use,on 'safe  retrakt',the clearence hight..only the g28 or g53..its so weird.

[andreas_georgakopoulos]

.An example

%
O01001
(Using high feed G1 F5000. instead of G0.)
(T20 D=26.1 CR=0. - slot mill)
N10 G90 G94 G17
N12 G21
N14 G53 G0 Z0.

(2D Contour3)
N16 T20 M6
N18 S4000 M3
N20 G54
N22 M11
N24 G0 A0.
N26 M10
N28 M8
N30 G1 X-2.61 Y51. F5000.
N32 G0 G43 Z33.35 H20
N34 G0 Z3.35
N36 G1 Z2.35 F800.
N38 Z1.26
N40 G19 G2 Y48.39 Z-1.35 J-2.61 K0. F700.
N42 G1 Y45.78
N44 G17 G3 X0. Y43.17 I2.61 J0.
N46 G1 X37.
N48 G3 X39.61 Y45.78 I0. J2.61
N50 G1 Y48.39
N52 G19 G3 Y51. Z1.26 J0. K2.61
N54 G0 Z33.35

here is the problem:
N56 G53 G0 Z0.🤔

(2D Contour3)
N58 M11
N60 G0 A-9.
N62 M10
N64 G17
N66 G1 X-2.61 Y51. F5000.
N68 G0 G43 Z33.35 H20
N70 G0 Z3.35
N72 G1 Z2.35 F800.
N74 Z1.26
N76 G19 G2 Y48.39 Z-1.35 J-2.61 K0. F700.
N78 G1 Y45.78
N80 G17 G3 X0. Y43.17 I2.61 J0.
N82 G1 X37.
N84 G3 X39.61 Y45.78 I0. J2.61
N86 G1 Y48.39
N88 G19 G3 Y51. Z1.26 J0. K2.61
N90 G0 Z33.35
N92 G53 G0 Z0.🤔

(2D Contour3)

[programming2C78B]

yes, thats a safety move between A rotations. No way to disable on Haas - use find and replace and swap the string into a single space

[andreas_georgakopoulos]

Of course I've thought about that too..but I might have to run 50 or even 80 teeth. I can replace all the g53 but.. maybe some time, some day,I'll forget something or make changes to wrong g53🙉 and all going to crash.The thing is that the change is made by the program and not by making changes in the code.Thank you 🙂

[andreas_georgakopoulos]

[andreas_georgakopoulos]

I finally downloaded a post-processor  that I edited myself and instead of G53 ,the tool stays down to the clearance height.then i added some manual nc codes(pass-trough G53 G00 Z0.) for safety reasons.its looks like this

[andreas_georgakopoulos]

ok