Radial movement in drilling operation. Not shown in simulation

[Anonymous]

I'm trying to do a simple drilling operation on my HAAS-ST-30. Everything looks fine in the simulation, however in the following line of code, its shifting the X axis .075 before the drill retracts. I've tried several post configs and it doesn't make a difference. So whats causing it?

N25 G81 X0. Z-3.025 R0.075 F5.

[Marco.Takx]

Hi @Anonymous,

The R value in the code is only the retract Height (In Z axis). In that code is the X-axis not moving.

[Anonymous]

Please see the attached image. It is most definitely moving the x axis. Note the difference between the tool offset 8 and the machine position. .075. I noticed it when doing a dry run. Again, this does not show up in simulation, which is pretty scary. 

[Anonymous]

@Steinwerks Any insight on this one? I'm assuming the post is the issue because when I simulate it, under the info tab the x axis does not move. However after post it generates the line in my original post. 

[Steinwerks]

This is another one that would need a sample part. Is it the same sample part from your other thread?

I presume this is using the same ST-30 post processor, correct?

[Anonymous]

Same part. Same thing happens with both the generic haas post, and the st
30 post.

[Steinwerks]

This is pretty bizarre, especially because Haas says this is the retract plane:

https://diy.haascnc.com/g83-normal-peck-drilling-canned-cycle-group-09-lathe

This is the code I got from the generic Haas Turning post:

%
O1001 (TEMP)
N10 G98 G18
N11 G20
N12 M31
N13 G53 G0 X0.

(Drill6)
N14 T808
N15 G98
N16 M22
N17 G97 S354 M3
N18 G54
N19 M8
N20 G0 X0. Z0.6
N21 G17
N22 G0 Z0.2
N23 Z0.6
N24 Z0.2
N25 G83 X0. Z-3.025 R0.075 Q0.25 F5.
N26 G80
N27 Z0.6

N28 M9
N29 G53 X0.
N30 G53 Z0.
N31 M30
%

[Anonymous]

Know anyone who can get the post fixed? I'm assuming I can't be the only one with this issue. I don't want to have to manually edit the code every time I have a drill operation. 

[Steinwerks]

In the code I posted there would be nothing to move the X axis - even according to Haas' documentation - so I don't know why your machine is doing it.

[Anonymous]

Still having this issue on the generic Haas Turn post, and the ST-30 Post. Also happens with tapping cycles as well. 

See this link https://forums.autodesk.com/t5/fusion-360-computer-aided/drilling-on-lathe-g1-instead-of-g81/td-p/80...

This worked as a workaround for my drilling cycles, but I haven't figured it out for tapping. 

As a side note, I noticed that in  the default post for turning and ST-30 no matter what settings I enter for drilling, it rapids every movement. I can change Surface speed, Feed per revolution, etc etc, and it makes no difference when actually running. The above link fixes that issue, but again, it still exists for tapping. 

I noticed that its outputting a G17 cycle for "circular motion XY plane selection" From what I understand that doesn't make sense for a lathe? I wonder if that has something to do with this issue.