Also a better picture of your board wired up will help me take a closer look for issues.
I did hold the Stop button while starting the power. Same result. Yes, circuit is close in normal state. Pressing the button opens the circuit.
Lotās (too many) hits on Google for this particular issue.Is there a particular display that is know to be 100% compatable with MPCNC? I will just buy one if there is.
thx
??? 100% compatible, (if you bought it from me?), we have used the exact same one for more than 3 years on every board.
Did you swap the cable? the #1 issue is a single bad wire, which is usually fixed with the swap. Your issue is something I have never seen though.
OKā¦ I have now completely swapped the cables with same result.
HOWEVERā¦ ISSUE RESOLVED itself by me disconnecting EXP2 when starting power. I am now getting the expected display. I have now EXP2 & EXP2 connected and have restarted several times successfully. Perhaps it was the board stuck in some weird state or it may be simply that I didnāt make a good connection to the RAMBo. Its P1 & P2 connectors are not idiot proof like the display is, i.e. no key to guarantee proper connection.
Ryan, based on your feedback I began to believe that this issue was a statistical outlier and was most likely something related to the display or the connectors as they are the only two variables in play.
Anyway, once again, thanks for being Johnny on the Spot with support. This forum is a breath of fresh air and the additional folks chiming in is really cool. Much appreciated all!
BTW, I am going to cut down the legs to 4" and have another go at it. I was able to cut square and round pockets in press board at the 8.5 in height but I could really send a lot of instability.
Cheers!
SWEEEEETTT!!!
I am sure it was frustrating as all get out but I tried to reply to you as fast as possible no matter what I was doing to try and get it sorted out. There are so many tiny things to look out for.
Yeah, 3-4", way easier to use!
Ryanā¦ are you kidding? You responded on a Sunday. Who does that! Thx for all the help. Same goes for the other voices as well.
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I think the longest Iāve ever seen Ryan not on the forums is when heās at MRRF. Even then, people have brought parts over for him to look at. We had one guy drive almost 3 hours just to pick our brains.
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Iām having this same problem. I had the MPCNC running last night off manual controls from repitier but the LCD screen was giving me a solid blue screen but I figured I would fix it later then today when I fixed the screen so it works it gives me the same error message and wont let me manual control from the LCD or repitier and repitier even pops up a error message. Then today as soon as I unplug the LCD its back to running perfect.
The machine is a Rambo 1.4 pre flashed from V1 and there is a J Tech laser hooked up but not in use.
Did you try everything discussed in this thread?
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Josephā¦ my problem resolved itself after stopping and re-seating all my connectors. Started it up and everything worked and is still working.
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I might try reattaching the LCD tomorrow but as of right now I have the table running right and the laser running right so Iām enjoying my success from a week of fiddling to make it. Iām hesitant to mess with the connectors and donāt really need the LCD screen I thought it was just nice to have if I ever decided to not use a computer to run the table. But as it is I made my box to small for my Rambo board and Laser driver so I will have to move them to a new board and when I do I will probably revisit the LCD screen be added on.
Hello,
I have read through this thread and still having the error of Killed Printer Halted.
- Successfully drew Crown through Repetier and manually control CNC
- I have tried all combinations of wire combos including physically switching the ribbons
- I disconnected the endstops
- I have ensured the connection was tight on both ends.
The error does not happen right away. the LCD boots fine and on the main screen it will sit there without error. the error only happens when I start to use the control knob on the LCD.
There are completely separate pins on the lcd. One of them is for the reset button on the front. If the knob is wired into that button, either because thereās a short, or because itās just wired wrong, youāll see these symptoms. You say you physically switched the ribbons, does that mean replaced them?
For the ribbons I tried the ribbons in both connections in the back of the LCD while, trying the different combinations.
Current Wiring:
EXP1 -> Side Closest to stepper 4 pin connection
EXP2 -> Side Closest to the Fuse
I disconnected EXP2 from the LCD (assuming this is the ribbon that relays the SD card as Ryan mentioned above) and Screen comes on, will allow me to click the button down going into the menu screen but when turning the knob the cursor does not move and i do not get the error anymore.
When plugging EXP2 back in, its boots up allows me to press down the button and go into the menu screen and as soon as I turn the knob to the right (to scroll down the menu) that is when I get the error.
When the error happens and I turn the knob it reboots the LCD and then will give me the error again if I try going into the menu
If I am plugged into Repetier I can manually control the CNC and the coordinates show up on the LCD screen. If i try using the LCD and get the error, I also get the error in Repetier.
EXP1 goes to EXP1. So then there are 4 possible ways to connect it. You can turn each cable 180 to try different combinations. Only one works. Beyond that,you can try to debug it by checking the continuity with a multimeter or you can replace the whole thing and the ribbons. Did you carefully look at the ribbons? You donāt have the controller on something conductive, do you?
I have walked through all combinations of wire including rotating, some the screen doesnāt do anything, some others the screen is delayed and the backlight turns on but no graphics. then the one combination powers up imeediately with the V1 Graphic, but still has the error.
It is sitting directly on MDF (im waiting to get wiring complete before i put in a box), I do not have a multimeter, Ribbons look to be intact.
Is there any firmware issues that could cause this? (I purchased from V1)
If not I will reach out to Ryan to see if he has any thoughts before we try replacing.
Thank you for your help.
Use a usb and see if you still get the error in repetier host. lets see if it is the board or LCD. My CNC firmware should not have that error possible, but the printer firmware can if you do not have the thermistor plugged in.
Itās not an error, its more likely to be what happens when you press the reset switch on the screen.
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