AA vs BB print head

[amysyu 0]

Does anyone have the experience that you inserted AA print head but the printer detects BB print head?

[Smithy 1,146]

It is very rare but there were some print cores in the past which were programmed wrong.

Can you see a difference between the AA and BB print core? 

Are you sure you correctly unloaded and loaded the print core via the printers menu?

[amysyu 0]

Visually I cannot tell the differences. I tried a few times to insert THE print core (labeled as AA) the printer kept showing as BB. If I insert another print core (AA), the printer detects the right print core (AA). I have eight print cores in hand (I know, crazy!!). I have tried 5 of them since I have extruding issue before, four of them are detected as they should be. lol  

[Smithy 1,146]

Ok, then it should be really the print core itself. Contact your reseller for a replacement.

[Carla_Birch 116]

No real need for a replacement, you can reprogram the printcore using the printer itself and ssh commands using software like putty on Windows or terminal on Mac.

 

Set printer into developer mode and make sure its linked to your network that the computer is on also.

• In putty type: ultimaker@1.2.3.4 (1.2.3.4 edit this to match the printers network ip address what can be seen on the printers network display screen if unsure)
• username/password is:   ultimaker/ultimaker (so just ultimaker for both)

• AA 0.4

  sendgcode M151 T0 A8 D7800000000004141
  sendgcode M151 T0 A16 D20302E3400000000

  BB 0.4

  sendgcode M151 T1 A8 D7800000000004242
  sendgcode M151 T1 A16 D20302E3400000000

  AA 0.8

  sendgcode M151 T0 A8 D7800000000004141
  sendgcode M151 T0 A16 D20302E3800000000

  BB 0.8

  sendgcode M151 T1 A8 D7800000000004242
  sendgcode M151 T1 A16 D20302E3800000000

  AA 0.25

  sendgcode M151 T0 A8 D7800000000004141
  sendgcode M151 T0 A16 D20302E3235000000

  BB 0.25

  sendgcode M151 T1 A8 D7800000000004242
  sendgcode M151 T1 A16 D20302E3235000000

  AA 0.4

  sendgcode M151 T0 A8 D7800000000004141
  sendgcode M151 T0 A16 D20302E3400000000

  BB 0.4

  sendgcode M151 T1 A8 D7800000000004242
  sendgcode M151 T1 A16 D20302E3400000000

  AA 0.6

  sendgcode M151 T0 A8 D7800000000004141
  sendgcode M151 T0 A16 D20302E3600000000

  BB 0.6

  sendgcode M151 T1 A8 D7800000000004242
  sendgcode M151 T1 A16 D20302E3600000000

  AA 0.8

  sendgcode M151 T0 A8 D7800000000004141
  sendgcode M151 T0 A16 D20302E3800000000

  BB 0.8

  sendgcode M151 T1 A8 D7800000000004242
  sendgcode M151 T1 A16 D20302E3800000000

Send one the following codes that match the print core you want to program it to, keep in mind T0 is left slot and T1 is right slot (as facing the printer) So in your case if ts meant to be a AA 0.4 core you need the print core in the left slot and send the codes:

 

sendgcode M151 T0 A8 D7800000000004141
sendgcode M151 T0 A16 D20302E3400000000

 

When done, take the core out and take the printer back out of developer mode and then reload the print core as normal and it should now read it as a AA 0.4.

 

Note no  X,Y,Z offset calibrations will be lost or other data from the core.

[JosR 0]

Hi Carla_Birch,

 

thanks for the code list. Can one reprogram a printcore to CC aswell? does somebody have that codes?

 

thanks,

 

KR,

Jos

[rachael7 74]

On 8/13/2021 at 7:37 AM, JosR said:

Hi Carla_Birch,

 

thanks for the code list. Can one reprogram a printcore to CC aswell? does somebody have that codes?

 

thanks,

 

KR,

Jos

I would like to know as well. Thanks!

[rachael7 74]

Has anyone decoded how these identifying number are structured?  I'm curious to figure it out, since I'm using 3D Solex cores that have available nozzle sizes other than the UM standards, like an 0.50mm, for example. It's easy enough to make up a new core variant, by adding it to the user directory, so I was curious if I could actually reprogram my cores to match and avoid the mismatched core warning at the start of the print.  Looking at the above, it would appear that the AAs all have the first number ending in 4141 and the BBs end in 4242. From another source, I believe the CCs all end in 4343, so that makes sense.  The nozzle size seems to be the first digit after 'E3' in the second number - all the 0.4mm cores have a 4 there, the 0.6mm have a 6 there, and the 0.8mm have an 8 there.  But on the 0.25mm, it has 235 following the 'E3' and I'm struggling to make sense of that. 235 isn't hex for 25 in any way that I can see, nor do any other explanations appear obvious.  Perhaps 235 is an error?  If not, there's something more to the schema that I haven't figured out yet. Or perhaps some of the numbers are just arbitrary?