Nothing gets to work with a very large scale 3d printer Hello fellows, I built a 1.8 m X 1 m X 1 m XYZ FDM robot based o RAMPS1.4, Arduino Mega, and Marlin 1.1.4. Every thing was going very nice meanwhile but recently everything went crazy !! what exactly happens is as follows: 1- System resets after about 4 hours of working which my still in the first layer. I increased the cooling on the board and I felt like I have solved it. 2- the next thing was that it stopped resetting but it halts for a period that can't be controlled ... suddenly the LCD looses the texts and readings and the printer pauses for ever !!! I still didn't find a solution but I replaced all the electronic components with newer ones !! 3- when I used to print successfully on this machine I printed two 9 hours simple prints but the only damned problem I faced was to level the bed !!!!! I can't do it and everything fails .. Bilinear leveling doesn't compensate .. Unified thing can't be even initiated and I still can't make the Mesh leveling. I would suggest discussing the leveling in a nother topic as I face the same problem with the desktop versions !! 4- Now I can't start printing as I receive the thermal runaway error and the system then halts and I can't print !! What do you suggest?? thanks in advance, Osama https://reprap.org/forum/read.php?219,780454,780454#msg-780454 Fri, 11 Sep 2026 22:08:48 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?219,780454,780674#msg-780674 Re: Nothing gets to work with a very large scale 3d printer https://reprap.org/forum/read.php?219,780454,780674#msg-780674
Quote
o_lampe
I always make braided wire harnesses for my steppers.

If you eliminate the obvious on your 3D printer, this leaves you only the unobvious.
Read this post about how I discovered the problems on two of my 3D Printers.

One short video included where I remove the shielding to duplicate the noise problem.
I have a time table that shows exactly what time the errors occur jump to those time slots.
[www.3dprintingforum.us]

I had only a single ribbon cable crossing my controller cards that caused most of my problems.
Nothing ventured nothing gained.]]> Roberts_Clif RAMPS Electronics Sat, 29 Jul 2017 10:17:16 -0400 https://reprap.org/forum/read.php?219,780454,780616#msg-780616 Re: Nothing gets to work with a very large scale 3d printer https://reprap.org/forum/read.php?219,780454,780616#msg-780616 o_lampe RAMPS Electronics Sat, 29 Jul 2017 02:07:55 -0400 https://reprap.org/forum/read.php?219,780454,780524#msg-780524 Re: Nothing gets to work with a very large scale 3d printer https://reprap.org/forum/read.php?219,780454,780524#msg-780524
First you could have EFI problems make sure that all controller cables are separated from LCD cabling.
As most EFI problems occur when the stepper motor signals cross feed into the the LCD control wires.

Meaning that your stepper motor wires should not be near your control wires referring the end stop, proximity sensor, filament run-out sensor, and LCD wiring.
Shielding can be used on long runs to contain EFI, RFI and EMI interference.

And running the stepper motor wiring up one leg of the stand and the control wiring up another could solve your problem.

Can we see a image of your Custom built 3D Printer. Might help in troubleshooting, include controller/lcd area. As control wires close the the Stepper motor drivers can cause problems.]]> Roberts_Clif RAMPS Electronics Fri, 28 Jul 2017 09:17:32 -0400 https://reprap.org/forum/read.php?219,780454,780487#msg-780487 Re: Nothing gets to work with a very large scale 3d printer https://reprap.org/forum/read.php?219,780454,780487#msg-780487 VDX RAMPS Electronics Fri, 28 Jul 2017 04:02:25 -0400 https://reprap.org/forum/read.php?219,780454,780469#msg-780469 Re: Nothing gets to work with a very large scale 3d printer https://reprap.org/forum/read.php?219,780454,780469#msg-780469
I can't help with bed leveling, but I can imagine it's a nightmare to level such a big bed.
I'd go for 32bit controller to get a more reliable printer. (eg. more probe points possible due to bigger RAM )
8-bit Marlin is always "on the edge" of failure it seems. And more features mean more problems.]]> o_lampe RAMPS Electronics Fri, 28 Jul 2017 02:23:23 -0400 https://reprap.org/forum/read.php?219,780454,780454#msg-780454 Nothing gets to work with a very large scale 3d printer https://reprap.org/forum/read.php?219,780454,780454#msg-780454 I built a 1.8 m X 1 m X 1 m XYZ FDM robot based o RAMPS1.4, Arduino Mega, and Marlin 1.1.4.
Every thing was going very nice meanwhile but recently everything went crazy !!

what exactly happens is as follows:

1- System resets after about 4 hours of working which my still in the first layer. I increased the cooling on the board and I felt like I have solved it.
2- the next thing was that it stopped resetting but it halts for a period that can't be controlled ... suddenly the LCD looses the texts and readings and the printer pauses for ever !!! I still didn't find a solution but I replaced all the electronic components with newer ones !!
3- when I used to print successfully on this machine I printed two 9 hours simple prints but the only damned problem I faced was to level the bed !!!!! I can't do it and everything fails .. Bilinear leveling doesn't compensate .. Unified thing can't be even initiated and I still can't make the Mesh leveling. I would suggest discussing the leveling in a nother topic as I face the same problem with the desktop versions !!
4- Now I can't start printing as I receive the thermal runaway error and the system then halts and I can't print !!

What do you suggest??
thanks in advance,

Osama]]> Osama RAMPS Electronics Thu, 27 Jul 2017 20:06:58 -0400