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Mazatrol Nexus - 854 Incorrect Usermacro Programming?
Hi. I'm trying to make a milling macro for a QT Nexus 250-II MS. What I'm trying to do requires nested loops but the system doesn't seem to like this for some reason. What's the correct way to make a nested loop on this controller? This is the code that gives me the error: WHILE [#7 GE 0] DO1...- Isak Andersson
- Thread
- Replies: 2
- Forum: Mazak
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Mazak Nexus - W-Axis goes slow, then really fast, then crash!
Oh yeah, sorry, that's just my crappy phone camera. The display is active. Showing d1 currently whatever that means.- Isak Andersson
- Post #10
- Forum: Mazak
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Mazak Nexus - W-Axis goes slow, then really fast, then crash!
Yes. The machine was in auto mode, running parts.- Isak Andersson
- Post #8
- Forum: Mazak
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Mazak Nexus - W-Axis goes slow, then really fast, then crash!
Is this the unit you're talking about (MR-J2-200CT)? How do I know what the numbers mean?- Isak Andersson
- Post #6
- Forum: Mazak
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Mazak Nexus - W-Axis goes slow, then really fast, then crash!
Is that the green cable in this image? There is no belt that I can see. According to the mechanical parts list the motor is connected straight to the ball screw.- Isak Andersson
- Post #3
- Forum: Mazak
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Mazak Nexus - W-Axis goes slow, then really fast, then crash!
Hi. I have a problem with a QT Nexus 250-II MS. The W-Axis (B) will sometimes not go at full rapid speed and then it will try to compensate for this by accelerating really fast, much faster than the normal rapids. The problem with this is that it will sometimes overshoot the target and, in this...- Isak Andersson
- Thread
- Replies: 11
- Forum: Mazak
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Mazatrol Nexus - PLC Chuck Sensor Parameter Makes Synchronized Rotation Illegal?
Thank you. RB11 bit4 was it. But then how did it work before if this parameter was off? Very strange.- Isak Andersson
- Post #4
- Forum: Mazak
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Mazatrol Nexus - PLC Chuck Sensor Parameter Makes Synchronized Rotation Illegal?
Hello. I finally gave up on the chuck sensors because they were driving me nuts so I change the PLC parameters to use timers instead on both the main and the sub. However, now it seems I can't use synchronized rotation anymore. M511 (Start of synchronized rotation) used to be fine but now it's...- Isak Andersson
- Thread
- Replies: 4
- Forum: Mazak
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Mazak Nexus - Axis Load Sitting at 30% Idle. Normal?
I tried monitoring the spindle load (on the main) but it just ramps up too much as it accelerates. It almost hits 100% sometimes and it's not consistent at all. I'd say the actual cutting forces give about 15% spindle load, certainly not 100%.- Isak Andersson
- Post #11
- Forum: Mazak
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Mazak Nexus - Axis Load Sitting at 30% Idle. Normal?
That's my point. This means that when the insert gets worn cutting forces go up. When cutting forces go up more of the weight of the turret gets offset. When more of the weight gets offset, the X-axis load goes down. This is what I have observed also. Over time, the X-axis load goes down so not...- Isak Andersson
- Post #7
- Forum: Mazak
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Mazak Nexus - Axis Load Sitting at 30% Idle. Normal?
Come to think of it. Wouldn't an overload on X, in this case, mean that the actual cutting forces are less, as it is offsetting less of the weight of the turret? In other words, It shouldn't check for an "overload", it should check for an "underload" because that would actually mean the cutting...- Isak Andersson
- Post #4
- Forum: Mazak
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Mazak Nexus - Axis Load Sitting at 30% Idle. Normal?
Ahh yes, that does make a lot of sense. Still don't know what's causing the W-axis (sub-spindle) load as it's not fighting against gravity. Not really a problem, just a little odd.- Isak Andersson
- Post #3
- Forum: Mazak
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Mazak Nexus - Axis Load Sitting at 30% Idle. Normal?
Hi. I noticed that the axis load on X and W sits at around 30 % when the machine isn't moving at all. What's even stranger is that the load on X actually goes down when it's cutting in the X direction. How is this possible? Usually, this wouldn't be a problem but I need a way to monitor the...- Isak Andersson
- Thread
- Replies: 13
- Forum: Mazak
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Prevent Simulator from Changing Offsets with Probing Macros?
That's kinda genius actually. Definitely gonna test this later. Edit: Just tried it. Works great. Thanks!- Isak Andersson
- Post #6
- Forum: Haas
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Prevent Simulator from Changing Offsets with Probing Macros?
Yeah, that's definitely what's happening. The question is how to deal with it in a foolproof way. Of course, refraining from using the simulator after probing would work but the operator might not know this. Could end badly...- Isak Andersson
- Post #3
- Forum: Haas
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Prevent Simulator from Changing Offsets with Probing Macros?
Hi. This is a pretty annoying problem I have with our Haas VF4 (NGC). I use a fair amount of probing macros with this machine and the macros themself work flawlessly. The problem is that the simulator will sometimes reset offsets after probing. Same thing will happen if setting 36 - Program...- Isak Andersson
- Thread
- Replies: 5
- Forum: Haas
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G167 Modify Setting - Guard Code?
Hello. I'm trying to set setting 36 - Program Restart to off in a program using a G167 - Modify Setting. The Haas homepage mentions something about a guard code (K). What exactly is this guard code and must I have this to use G167? It's not very clear from the webpage. I tried: G167 P36 Q0...- Isak Andersson
- Thread
- Replies: 0
- Forum: Haas
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Mazatrol Nexus - EIA - Bar Pull and Parting-off?
Never mind, I figured it out. It needed M511 (Synchronized rotation with main as master) instead of M502. I assume M512 (Synchronized rotation with the sub as master) would work as well but I don't know how.- Isak Andersson
- Post #5
- Forum: Mazak
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Mazatrol Nexus - EIA - Bar Pull and Parting-off?
I tried your program. Same issue. It gets stuck on M502. Any ideas why?- Isak Andersson
- Post #3
- Forum: Mazak
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Mazatrol Nexus - EIA - Bar Pull and Parting-off?
Hi. I am trying to make a macro to make the bar-pulling and parting-off operations a bit more optimized and automated. I based my macro on the code example in this post: https://www.practicalmachinist.com/forum/threads/need-lathe-eia-example-with-live-tools-and-subspindle.266675/ I have a few...- Isak Andersson
- Thread
- Replies: 4
- Forum: Mazak