Hi everybody,
i have got a strange problem:
I want to print the same part a couple of times.
Simultaneous print of all for parts didn’t work out, so i have to print them seperately.
I wouldn’t mind doing it, but after the first print, the X-Axis won’t move!
Restarting, calibrating of homing didn’t help anything.
Do you have an idea what’s going wrong?
Usually, the ext day, everything works fine again, but i have no idea why.
Machine: SM 2.0 350 with enclosure.
Is x-axis working normally while calibrating or homing?
Or not working at all.
If not working at all it’s either a problem with the linear module or a cabling problem.
Try unplugging and replugging in the cable (with machine off).
-S
Hi, thanks for the hint.
I unplugged it and plugged it back in.
It’s still strange:
At the beginning, everything works out fine, homing, calibration, printing.
Just after 1 hour of printing or so, the X-axis stops moving, but print continues. So i have to stop the print. Then, while homing, calibration or scrolling the X-axis won’t work anymore.
After homing, the X value is at -19mm…
Shut down and restart won’t solve it, usually the next day its OK again.
Maybe it’s some sort of temperature issue, so that the X-axis has to cool down over night?
Has anybody a similar problem?
@pez it sounds like it’s possibly overheating. Does it feel hot anywhere on the rail? And what way does it stop moving? Up and down on the z rails? Or on the x rail itself and the head fails to continue moving along the x axis?
Just to help expedite resolution, @staff can you chime in? I have a feeling that the special firmware to change ports on the controller is going to be needed to rule out the controller.
No it doesn’t feel hot anywhere, at least not more then the other linear modules.
The X-linear module itself stops, that means the print head stops movingalong the x-axis.
@pez ok I just wanted to clarify to make sure I myself was on the same page as you 
.
Does it give an audible sound like it’s trying to move but is mechanically bound up? Or is it just remaining quiet? If it’s not overheating, it could be a bad cable or even controller, but I’ve never seen the controller fail like that. Then again the last one I diagnosed that I ended up being completely right about (I was so confident I said if I was wrong I was going for a hike across Death Valley nekkid, ahem @Deth) I hadn’t seen it fail that way before either. I’m not trying to be cocky, nor sound like a know-it-all, I just had invested a ton mod my personal time to help him and it was a LOT of troubleshooting we performed, I did about a week straight of troubleshooting with him outside of the forum via private messaging, before the issue was brought to the forum. It took a lot of convincing for support to come to the same conclusion, but they also need to be just as convinced as I was to avoid sending out the wrong part, it’s their job after all.
More troubleshooting is needed as well as the takeover by support, but I can still help to try to speed up resolution and get more information for troubleshooting.
No, there no sound as if it was TRYING to move. Just nothing. But my power supply is still quite loud (i actually AM trying to print the backplate for a larger fan 
)
@pez ok are you able to physically move the head along the rail by hand after it stops? There’s actually a quieter fan that doesn’t require any printed parts or modifications of the like btw. You just have to reverse the replacement fans polarity of its connector then its a direct fit replacement.
Yes, i can move th eprint head along the X axis by hand after stopping the print.
Oh, i already had one 40mm fan here, so i’ll go for that (maybe with a small resistor to reduce rpm)
@pez Does the controller feel hot when it happens? How does the cable feel? Does it have any heat to it at all? (If it doesn’t that still doesn’t rule out the cable)
Also I probably should’ve asked this earlier, does this happen on all prints or only just this one? Finally what firmware are you on? Have you updated it at all?
Temperature: Yes the X linear module is slightly warmer then the other ones. Also the controller ist a little warm.
Yes, the same error happens with other prints too.
Yes i have the latest firmware on it (to enable emergency stop button)
Right now i am printing with the doors of enclosure open, for now it prints fine.
@pez is it just a little warmer or is there a big difference? It sounds to be more of an overheating issue. I know some rails didn’t have the thermal compound applied correctly on the IC chip in the rail and suddenly burn out.
it just a small difference to the other rails, BUT: the x linear module is CLEARLY warmer on one side (next to the controller)!
EDIT: i compared it to the heated bed which is 50°C: The linear module is MUCH hotter, not far away from “too hot to touch”, AKA “drop it ike it’s hot” or “can’t touch this”).
@pez k I think you have an overheating IC chip in the rail. Create an official support ticket. It shouldn’t be almost too hot to touch.
OK thanks, that seems logical. I’ll just let it finish the print over night with open doors and see if that worked out better.
Hi, yes i think so too. The print finished over night fine, but i had the doors open and the linear module was still very hot in the morning.
HI pez, I has the same problem with the x-axis - i think after the second print. Nothing helped actually to get it working again
I have got a new one without problems.