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CNC Router Communications randomly stopped receiving data?

NWSignworks

New Member
Hello,

For basic run down, our CNC router ran fine, received jobs from the computer fine, then out of no where one day it didn't. There is a communication error/loss/disconnect somewhere between the PC and the Routers Controller.

We run an old Windows XP 32bit pc, using ArtPath32 for our program to tell the router what to run. The CNC Router is a Gerber Sabre 404.

We tried contacting a few people like who bought out Gerber, but they do not want to help, they sent us to someone that may be able to help but they never responded to the 3 messages we left (over a month ago). There are no local technicians that deal with our issue or with our equipment, so we don't have anyone to come figure out the problem for us.

FULL DETAILS of my testings and findings:
- Firstly it worked fine, then it didn't. Our PC shows that the job file was sent to the Sabre with no error messages. But our Sabre's controller does not indicate that it received the job file.

- We us ArtPath32 for our program for setting up the file for the Router to run. We have the Gerber Mgr 4.0 (job que) showing all correct ports (com 1) and settings are all correct, there are no errors when there is a job sitting in que, sent to the sabre.

- When I started looking at why the Sabre's Controller isn't receiving the job, I started to look at the Windows XP computer's Port in Device Manager. There was a Yellow Exclamation mark (!). I did a driver update on it (reinstalled drivers) did a HyperTermincal communication test by jumping the RX and TX pins on the port it's self, for a while it was not working at all. So I assumed the port went bad. I tried several things that were supposed to fix it, to it still not working.

- So since that port appeared to be broken, I did some research and bought a PCI Card that "should work" got it plugged into the computer, downloaded the drivers, ensured the Port settings and properties where set up to what the router requires for communication... The Sabre's Controller lights lit up! I had the test job i sent waiting to be run. But we didn't have the material ready and it was the end of the day anyways. I shut it down the same way i do every other time. The next morning started it up, sent the real job i needed... No lights on the Controller... I double checked the ports, the cable from the pc to the router, i made sure every setting was correct. Made sure the port was working still... Nothing.

- Did more fiddling setting changes on this port. Nothing. Went through everything i found online on fixes. I tried everything ChatGPT tried to have fix it... Nothing.

- I got a new cable in today, got everything up and running, I hit send job, as soon as the job hit the que manager i got an error message. Did some searching Cable wasn't the right configuration (error was "Spooling: <job name> (5)"). For giggles I unplugged the cable and hit send again, and the error message was slightly different "Spooling: <job name> (40)" which told me that the original cable we already had been using was working, as it gave me no errors.

- After re-ensuring properties and settings where all correct I gave my PC a reset, i checked the device manager and saw that the Original Serial port that came default on the PC (the one we've used 100's of times before) is back on line with no errors. I checked the settings, did a Jump and did the HyperTerminal Communication test on it... This time the port indicates it's working again.

- I tried the original everything, settings, ports, frequencies EVERYTHING... No lights on the controller still...

- I did continuity testing with a volt meter on everything from the PC to the Routers Controller. The ONLY i can't get is a signal between one end of the small circuit board to the other end of it. I know nothing about circuit boards and if i even tested it right or not. But I followed every cable and got continuity everywhere.
--- The circuit boards sits here in order of hardware and cables in the whole system: PC -> COM Port -> BD9 to DB25 Cable -> Male Port on CNC Router Computer Box for the DB25 -> Small cable between the port and the Circuit Board -> THE CIRCUIT BOARD -> Plugs into the large circuit/motherboard -> output cable from main board to outer port of the CNC Electrical box -> Cable to the CNC Controller.

- The circuit board didn't have any continuity readings from where the cable goes into, to the pins that are at the bottom of the small circuit board that plugs into the larger board. There is a small fogging/Hazing on one of the pins and a slight miss coloring on that pins path. There are no burn marks or bubbling or visible disconnects. But again, i could very easily be not reading the circuit board correctly as i don't know jack about those.

I'm at a complete loss on what to do or where to look, or who we can find to help us out. We have looked into retrofitting but we haven't seen any retrofit's for this exact router before, and we don't know what new router softwares we can use that would fit our needs. Also retro fitting according to similar fit's we have seen cost almost as much as buying a new CNC Router all together we new programs anyways. And i to my knowledge my boss isn't ready to spend that much (I dont blame him).


Any help or suggestions or advise or even contact to someone that might be able to help would all be appreciated.
 

Smoke_Jaguar

Man who touches printers inappropriately.
You're in the classifieds section, Gerber stuff is here:

Given the age of the system, might be having issues with hardware failure. Look in both the control PC and the control boards on the cutter itself for signs of corrosion, swollen capacitors, etc. I see a lot of that on pre-2007 gear, sometimes it can be an easy fix.
 

netsol

Premium Subscriber
What port is it. (Com1, com2’ lpt1 ?
port on motherboard?
add on card?
usb to serial or parallel?
if serial, what speed, etc
if parallel spp Epps ecp

no one can troubleshoot without basic info

if usb to serial or parallel keep in mind that ONLY one end is plug & play. The other end is as dumb as a bag
of rocks & YOU have to understand how to make the correct settings

I take the yellow exclamation mark as good news (I don’t have to download the Sabre manual)
 

alexajames

New Member
Hello,

For basic run down, our CNC router ran fine, received jobs from the computer fine, then out of no where one day it didn't. There is a communication error/loss/disconnect somewhere between the PC and the Routers Controller.

We run an old Windows XP 32bit pc, using ArtPath32 for our program to tell the router what to run. The CNC Router is a Gerber Sabre 404.

We tried contacting a few people like who bought out Gerber, but they do not want to help, they sent us to someone that may be able to help but they never responded to the 3 messages we left (over a month ago). There are no local technicians that deal with our issue or with our equipment, so we don't have anyone to come figure out the problem for us.

FULL DETAILS of my testings and findings:
- Firstly it worked fine, then it didn't. Our PC shows that the job file was sent to the Sabre with no error messages. But our Sabre's controller does not indicate that it received the job file.

- We us ArtPath32 for our program for setting up the file for the Router to run. We have the Gerber Mgr 4.0 (job que) showing all correct ports (com 1) and settings are all correct, there are no errors when there is a job sitting in que, sent to the sabre.

- When I started looking at why the Sabre's Controller isn't receiving the job, I started to look at the Windows XP computer's Port in Device Manager. There was a Yellow Exclamation mark (!). I did a driver update on it (reinstalled drivers) did a HyperTermincal communication test by jumping the RX and TX pins on the port it's self, for a while it was not working at all. So I assumed the port went bad. I tried several things that were supposed to fix it, to it still not working.

- So since that port appeared to be broken, I did some research and bought a PCI Card that "should work" got it plugged into the computer, downloaded the drivers, ensured the Port settings and properties where set up to what the router requires for communication... The Sabre's Controller lights lit up! I had the test job i sent waiting to be run. But we didn't have the material ready and it was the end of the day anyways. I shut it down the same way i do every other time. The next morning started it up, sent the real job i needed... No lights on the Controller... I double checked the ports, the cable from the pc to the router, i made sure every setting was correct. Made sure the port was working still... Nothing.

- Did more fiddling setting changes on this port. Nothing. Went through everything i found online on fixes. I tried everything ChatGPT tried to have fix it... Nothing.

- I got a new cable in today, got everything up and running, I hit send job, as soon as the job hit the que manager i got an error message. Did some searching Cable wasn't the right configuration (error was "Spooling: <job name> (5)"). For giggles I unplugged the cable and hit send again, and the error message was slightly different "Spooling: <job name> (40)" which told me that the original cable we already had been using was working, as it gave me no errors.

- After re-ensuring properties and settings where all correct I gave my PC a reset, i checked the device manager and saw that the Original Serial port that came default on the PC (the one we've used 100's of times before) is back on line with no errors. I checked the settings, did a Jump and did the HyperTerminal Communication test on it... This time the port indicates it's working again.

- I tried the original everything, settings, ports, frequencies EVERYTHING... No lights on the controller still...

- I did continuity testing with a volt meter on everything from the PC to the Routers Controller. The ONLY i can't get is a signal between one end of the small circuit board to the other end of it. I know nothing about circuit boards and if i even tested it right or not. But I followed every cable and got continuity everywhere.
--- The circuit boards sits here in order of hardware and cables in the whole system: PC -> COM Port -> BD9 to DB25 Cable -> Male Port on CNC Router Computer Box for the DB25 -> Small cable between the port and the Circuit Board -> THE CIRCUIT BOARD -> Plugs into the large circuit/motherboard -> output cable from main board to outer port of the CNC Electrical box -> Cable to the CNC Controller.

- The circuit board didn't have any continuity readings from where the cable goes into, to the pins that are at the bottom of the small circuit board that plugs into the larger board. There is a small fogging/Hazing on one of the pins and a slight miss coloring on that pins path. There are no burn marks or bubbling or visible disconnects. But again, i could very easily be not reading the circuit board correctly as i don't know jack about those.

I'm at a complete loss on what to do or where to look, or who we can find to help us out. We have looked into retrofitting but we haven't seen any retrofit's for this exact router before, and we don't know what new router softwares we can use that would fit our needs. Also retro fitting according to similar fit's we have seen cost almost as much as buying a new CNC Router all together we new programs anyways. And i to my knowledge my boss isn't ready to spend that much (I dont blame him).


Any help or suggestions or advise or even contact to someone that might be able to help would all be appreciated.
From your description, it sounds like the small internal circuit board between the CNC controller and the PC might be failing. Even minor hazing or discoloration can cause intermittent signal loss. I’d suggest:

1- Inspect/replace the small board if possible this is often the weak point in older Gerber Sabres.
2- Try a known good PC with a direct COM port to rule out intermittent motherboard/PCI issues.
3- Check all DB9/DB25 connectors and pins for corrosion even a slightly bent pin can break communication.
4- Document everything and reach out to niche Gerber/legacy CNC forums or companies that specialize in legacy CNC supportthey often have spare boards or workarounds.
 

MikePro

Active Member
direct connection between the two, or across the network?

i’m always maddened when my network suddenly decides to assign another IP to devices when it retarts/updates.
my multicam cnc solution is to delete and reinstall device via connection manager
 

NWSignworks

New Member
direct connection between the two, or across the network?

i’m always maddened when my network suddenly decides to assign another IP to devices when it retarts/updates.
my multicam cnc solution is to delete and reinstall device via connection manager
Direct connection
 

NWSignworks

New Member
From your description, it sounds like the small internal circuit board between the CNC controller and the PC might be failing. Even minor hazing or discoloration can cause intermittent signal loss. I’d suggest:

1- Inspect/replace the small board if possible this is often the weak point in older Gerber Sabres.
2- Try a known good PC with a direct COM port to rule out intermittent motherboard/PCI issues.
3- Check all DB9/DB25 connectors and pins for corrosion even a slightly bent pin can break communication.
4- Document everything and reach out to niche Gerber/legacy CNC forums or companies that specialize in legacy CNC supportthey often have spare boards or workarounds.
Kind of what i was feeling, that the circuit board is at fault. I just don't know much about them myself
 

NWSignworks

New Member
What port is it. (Com1, com2’ lpt1 ?
port on motherboard?
add on card?
usb to serial or parallel?
if serial, what speed, etc
if parallel spp Epps ecp

no one can troubleshoot without basic info

if usb to serial or parallel keep in mind that ONLY one end is plug & play. The other end is as dumb as a bag
of rocks & YOU have to understand how to make the correct settings

I take the yellow exclamation mark as good news (I don’t have to download the Sabre manual)
Original port is labeled "Serial" on the pc, but in the manager is says COM1. It's a port on the mother board.

I tried adding a Serial PCI port that plugged into the mother board, no luck.
Not using a USB to Serial converter.
Port Properties: 9600, 8, Even, 1, None...
 

netsol

Premium Subscriber
a couple things, maybe we can have a quick call friday and sort this out.
i am unconvinced the problem isn't simply one with communication ports and the fact that settings need to be perfectly matched.
is it POSSIBLE that the sabre simply had a cmos battery go bad, losing settings or that you or an employee did a reset on the sabre?
 

NWSignworks

New Member
a couple things, maybe we can have a quick call friday and sort this out.
i am unconvinced the problem isn't simply one with communication ports and the fact that settings need to be perfectly matched.
is it POSSIBLE that the sabre simply had a cmos battery go bad, losing settings or that you or an employee did a reset on the sabre?
not sure about the cmos battery, as im not really sure what that is. no employee did anything that would have 'reset' any settings in anyway.
 

netsol

Premium Subscriber
thereis a cmos battery that holds settings in the pc as well I think as one in the cnc
1767226911651.jpeg
Battery going dead in either device defaults settings as well as losing time and date
 
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