Random moves Haas PreGNC classic control broken tools and wasted parts

[Ariel]

Hi there, this is your random Haas movement specialist. 

The 1st photo is the latest one. 

Program worked previously without an issue. 

I made a change to a toolpath later on down the program, reposted it, loaded it in the machine and then BAM, this happens. 

Tried everything previously suggested and nothing works.

- Always posted IJK values

- coordinate system setting 33 is set to Fanuc

- Haas tech tells me it doesn't happen to anyone else and I am the only one locally using Fusion

- removed vertical lead in, so horizontal lead in only

- only going one way, not both to eliminate arc movements between climb and conventional movements since I though this is where the machine struggles

- HSM is turned on

Anyone else care to shed some light on this

Nothing evident in verification or g code. Attached is also a preview of the code where this happened. 

 

  

[Ariel]

G code where is happened

G1X208.445Y-34.449
X196.48Y-34.451
X162.081Y-34.453
X111.23Y-34.456
X60.379Y-34.459
X9.528Y-34.462
X-41.323Y-34.466

[a.laasW8M6T]

That g code is all G1 moves so shouldn't cause any issues

Is this an older control that you need to drip feed programs to? I have had issues in the past when drip feeding and the machine was doing stuff that wasn't in the code(not haas though)

[Ariel]

No, these are all copied from the USB, loaded and run from the hard drive

[Ariel]

Here is a screenshot of where it made the move into the stock.

[a.laasW8M6T]

This really does sound like a problem with the controller having an issue, I can't see why it would veer off going in an (effectively) straight line.

Either the control is interpreting the code incorrectly or there is some issue in the control loop of the motion controller causing it.

being that its intermittent, and not always repeatable it could be hard to track down the root cause of the issue, just because the Haas tech has never seen it before doesn't mean its not a Haas problem.

[Ariel]

I totally agree. I am just grasping at straws since I have been having this
problem with 2 seperate machines and I am trying to get to the bottom of
it.

More so, I wanted to hear anyone else's experiences if they had seen
something similar...Fusion or not.

[seth.madore]

I agree with @a.laasW8M6T , this does sound like a control issue.

Would you be able to share the Fusion file or the NC code?

When you say "I made a change later on and reposted", was it a change in Design or just tweaking a toolpath?

[FrodoLoggins]

Had something similar where I specified no lead outs on a slotting toolpath. Fusion for no reason created little ~.0001" and ~.025" lead out rads though (tool was only Ø.055" so the tool would mill into the part). The toolpath Fusion displayed included the ~.0001" rads [which were impossible to see of course when not expecting any lead outs]. Fusion DID NOT display the ~.025" rads in the toolpath OR toolpath simulation [but they did come up when right clicking > show toolpath data]. Fusion posted both though lol. That was fun.

OP by chance did you play with any of these post settings?: