Temp works; ButPrint does not start...?

Eye

I was printing a while  now;  Vrry  Nicely working with PETG, 

i had some   Blockage in the throat and changed the  tube inline, and after that it now Wont start printing

the heat up  for bed and Then  extruder  works In Cura,
No Freezing on the  dials or such
 And  then nothing happens

The  Printing Percentage   counts up,  But nothing happens

i dont get any  error message ;
and If i Try  the   Console The 3 axis and the heat up and the extrusion works well!

I exchanged the Terminator and the Heat bullet  Still No dice

 ANY idear what i can Still Try?


HelP

Eye

And now i have troubel to conect vfrom the computer...   it gets more and more fun....

Eye

 Printing LOCALY seems To work,  dont get a USB connection from  PC. ( tried 2...& different cabels)

Something is verry Fishy

Adon:   The   print seeems to work Via   USB stick   ,..  
  last   Coenction that wiorked was through Pronterface...

michalko99

Are you using standard PC, or notebook ? Might be earthing problem. Can you see additional COM port in windows hardware manager when you connect printer? 

Eye

Tried it with both, and different cables, no change  at the   device manager Thou,...   like before
 the  USB serial Com 3 CH340  is  not active  and a leftover from  before

it does get Power thou...    as the  Little  touchsreen lites Up

michalko99

I dont get it..So can you hear Windows connection sound upon connecting printer? If no, USB to RS232 converter on mainboard might be deffective. This will happen when PC and printer are not on same AC phase or correctly earthed-especially in case of using notebook PC

Samuel Pinches

Can I help via teamviewer? Sounds like CH340 serial adapter chip is working, but the ATMEGA2560 CPU chip may be fried.

Eye

@michalko99 nope no sound,  and  I tried  with the   notebook after thepoblms started

Samuel Ounches;  Shur,  whwn you hcwe The time

Is that chip replaceable?

Samuel Pinches

It is replaceable with lots of difficulty. May be easier to buy a new MKS Gen L motherboard (note: not SGEN L)

Eye

     ha,..  that is not quite so cheep i take, and Then needs some new flashing...?

I relay would appreciate if you throw a look

  I think that rode down  all  missing to build a  new Printer one from scratch are the  metal  Casing parts

Samuel Pinches

https://www.amazon.de/dp/B07CRJVBTJ
Quite cheap!

michalko99

I purchased several of these for my other printers from Ali.. Around 11Eur

https://www.aliexpress.com/item/32969933046.html?spm=a2g0o.productlist.0.0.297c3897JNVi2j&algo_pvid=5f5e42e6-364d-449a-9fd1-4a4c0b8733f0&algo_expid=5f5e42e6-364d-449a-9fd1-4a4c0b8733f0-1&btsid=0bb0623b16178044081635414ec690&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

There is also SgenL, which is different and much powerful as it is 32bits, but overkill for A5

Ah, Samuel mentioned SgenL before...

Eye

michalko99 Cool, I  seen it  For  ~ 50 Euros 

  i had replaces the Steppers a couple of months ago
So  If its realy Borken; it feels a abit like  its dying  one pice  after the other

Eye

Well  the  replacement board is on its way

also while Checking i was so... abel  that  i ripped  some  socket off the LCD board,...

it was nearly that Point were ordering a new printer becomes an option!
 but  then it seems to be the run out of filament sensor, which was not working anihow...

But let that be a reminder  someone  Droped a LOT of hotglue into this sytemsand some  things are kind of finiky...

Samuel Pinches

>also while Checking i was so... abel  that  i ripped  some  socket off the LCD board,...

Oh no.... -- hopefully it was just that port!

Eye

well i put it back together and it does Print! 
Just only From  USB not from computer

 Sad is only, i had it quite good   leveled with a 6 by 6 matrix,  now its.... not that good
i was  printing something quite long with a small base that worked PERFECTLY before, now it falls over after 15 cm or so

Also i think when the new  Board is here  i will have to
re-calibrate the  stepper drivers, and
re-flash the new board and
re-level ....
 

 

Eye

oh and Yes LETS HOPE!

michalko99

do you apply some adhesive on glass? My ultra turbo mega black diamond coating was not adhering since beginning. I just flipped glass and use hairspray as on my 4 other printers without issue

Eye

i added a Fiberglas Plate a while ago -  and It was working like Fringging MAGIC,
 also i was mainly Printing PETG, in that timefame which does hold better anihow
 so now i am kind  of  spoild!
 

Eye

The replacment main bord reached me,
 can i do the updating BEFORE i put it in,  and without the stepper stuff?

aölso can one   point me towards the correct   calibetion values for those steppedrivers? 
last time i found severl  diverging ones#

Samuel Pinches

Yes, you can flash the board on the computer without plugging anything else in.

Eye

UPdate seems to have worked, 


I hope those values are correct?

• Axis = Vref
• X = 0.4 - 0.55V
• Y = 0.4 - 0.6V
• Z = 0.7 - 0.85V
• E = 0.55 - 0.6V

   and in a couppel of days new ballbearings are here  too

Eye

is there some  clip about how to exchange the  bearings?

Eye

So The ballbeaings  arrived today; 
 So I  oped that box; and exchanged those of the Y axis and the Mainboard in one go. 

At the moment i again can print from my desk without having to resolve to  USB sticks!
This also means i am again able to tell that thing to stop to print if is see from remote in case if  something went into spagetti mode

Samuel Pinches

Yay! Double-success!!

Eye

Ha one   Problem;
my  touchscreen is  a Bit bad calibrated  or such,.. 
 so i can not level  with the  touch field, as it keeps restarting the  leveling,  The Laptop s  on it again

ALSO I HATE HAND  BED LEVEING!