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Post by nathan86 on Dec 7, 2018 11:05:27 GMT -5
I started having problems a few weeks ago with one particular small laser job with the Y axis jumping off. Then about a week later every axis started giving me trouble, it was making that grinding sound at times. Axiom thinks it was communication issue so they sent a new cord for controller, didn't fix problem so they had me send in controller and box. Since I've had it back the problems still persist. It's so inconsistent so I'll start by explaining what it is doing today: I wanted to burn the company's logo into some cutting boards using a file that I have used dozens of times before. I cut the machine on and it goes home fine and I can move every axis around with no issues. After setting the origin and starting the job the Z axis makes the grinding sound while going up and then sort of slams the laser into the work piece. It does the same thing running the file from a disc or internal file. If it's a speed issue I don't understand what could have changed, like I said, I've run this file numerous times with no issue.
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grg
Junior Member
Posts: 140
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Post by grg on Dec 7, 2018 11:59:01 GMT -5
I started having problems a few weeks ago with one particular small laser job with the Y axis jumping off. Then about a week later every axis started giving me trouble, it was making that grinding sound at times. Axiom thinks it was communication issue so they sent a new cord for controller, didn't fix problem so they had me send in controller and box. Since I've had it back the problems still persist. It's so inconsistent so I'll start by explaining what it is doing today: I wanted to burn the company's logo into some cutting boards using a file that I have used dozens of times before. I cut the machine on and it goes home fine and I can move every axis around with no issues. After setting the origin and starting the job the Z axis makes the grinding sound while going up and then sort of slams the laser into the work piece. It does the same thing running the file from a disc or internal file. If it's a speed issue I don't understand what could have changed, like I said, I've run this file numerous times with no issue. Has anything changed with your electrical grounding or dust collection? It could be drier winter air allowing more static to build up an impede communication. I have to run a humidifier in my printing/graphics office during the winter to keep my wide format printers working correctly because they are a bit of a van de graff generator with the vinyl rolling off 54" wide rolls and riding along an aluminum surface. Air and debris flowing through a dust collection hose can also generate a lot of static charge. Try changing up something with the grounding arrangement - for instance; run a ground wire manually/temporarily placed on the spindle to a good solid earth ground (ground prong on a plug or something) and see if that improves anything.
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Post by nathan86 on Dec 7, 2018 13:38:25 GMT -5
The colder weather thing has crossed my mind because one morning when it was really cold it was messing up, but working fine by that afternoon when the shop had warmed up some and I asked axiom about it and they only thought that it might effect the lubrication but that's not the issue. Because I've only used the laser since the problem started I haven't even fired up the dust collector so I know static isn't an issue. You've got me thinking about this grounding and weather issue more but I'm not sure what to check.
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Post by nathan86 on Dec 7, 2018 15:17:11 GMT -5
Ok, we realized that the screw connecting the ground crossovers in the breaker box were loose so tightened it. Tried it again and it seemed to work. But not so fast, I put a cutting board in to run it and it messed up again. So we ran a separate ground wire from the frame of the machine to the ground panel in the breaker box, now the Z axis is working but it keeps messing up at the same spot on the Y axis no matter where I set my origin. We have a large dust collection system running through the shop and we keep the doors closed in the winter time and it gets cold in here, but the dust collection isn't hooked to the cnc. I feel like I'm on to something but it may be a coincidence that the Z axis started working after I started addressing the ground issue.
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grg
Junior Member
Posts: 140
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Post by grg on Dec 7, 2018 20:00:02 GMT -5
Weird. I hope you're onto something there. It's a long shot but I would try to get a good ground directly to the spindle head - at least temporarily - and see if that offers any improvement.
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Post by stevem on Dec 7, 2018 21:05:43 GMT -5
Since the spindle is bolted to the machine, it should already be grounded. Are you running the project from internal memory or from a usb stick? I ask, because a few weeks ago, I was running a project from internal memory and it kept stopping at 27 min into a 5 hour run. I deleted the file from internal memory, reinstalled it and it ran just fine. I had run that same file from internal memory at least 20 times without a problem. Don't know what happened, but stupid things can happen with the internal memory storage.
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Post by nathan86 on Dec 10, 2018 7:45:51 GMT -5
Well, I was trying it from internal memory and the usb file I had it on and it was messing up on both. After I addressed the ground issue I recreated the file on a new thumb drive and it started doing fine. I don't know if this makes any sense, but my theory is that this cold weather/ground issue may have kept damaging communication and damaged the file, I don't know.
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Post by stevem on Dec 10, 2018 11:15:56 GMT -5
That is very possible. I have bought some smaller size usb drives from Amazon and they work well. For some reason The larger drives don't want to communicate as well. I even have a few old 256 meg drives that work great. Even that small of a drive holds alot of files. Some of these usb drives are more delicate than others and just don't hold up that well. When I copy a file to a drive, I always pull it out of the pc slot and them plug it back in to make sure the file is there and is the same size as the original.
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zaxis4
Junior Member
Posts: 162
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Post by zaxis4 on Dec 11, 2018 21:15:47 GMT -5
If you do not dismount the flash drive from the PC the right way, and just pull it out, it can also corrupt the program being saved on it. Just something I thought of.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Dec 12, 2018 10:27:46 GMT -5
That is very possible. I have bought some smaller size usb drives from Amazon and they work well. For some reason The larger drives don't want to communicate as well. I even have a few old 256 meg drives that work great. Even that small of a drive holds alot of files. Some of these usb drives are more delicate than others and just don't hold up that well. When I copy a file to a drive, I always pull it out of the pc slot and them plug it back in to make sure the file is there and is the same size as the original. You can use Beyond Compare to copy and verify the files match and save the configuration so you can do it everytime easily, it's also great for doing backups to detachable drives: scootersoftware.com/
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