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Can not get Buddy3D to connect  

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GaryBushey
(@garybushey)
Active Member
Can not get Buddy3D to connect

I have the Buddy3D for the Prusa Core One but it never seems to register.  It connects to the network and did a firmware update on its own.   Now, when I follow the instructions to create the QR Code and press the reset the button the camera states that it is looking for the QR Code, Finds the QR Code, and stops looking for the QR Code but it never shows up in Prusa connect as being connected.   Any ideas?

Posted : 22/01/2026 11:34 pm
jan.d.slay
(@jan-d-slay)
Estimable Member
RE: Can not get Buddy3D to connect

How many times did you try? I had to try five times before it finally worked.

Prusa Core One - Fast & Clean Start Gcode
Prusa XL - Quick Start Gcode
Posted : 23/01/2026 11:54 am
GaryBushey
(@garybushey)
Active Member
Topic starter answered:
RE: Can not get Buddy3D to connect

I've probably tried about a dozen times so far.  Will keep trying

Posted : 23/01/2026 12:06 pm
jan.d.slay
(@jan-d-slay)
Estimable Member
RE: Can not get Buddy3D to connect

Please don't misunderstand, but it's part of the process:

Has the rubber cap at the front been removed?

But I think you've seen that.

Prusa Core One - Fast & Clean Start Gcode
Prusa XL - Quick Start Gcode
Posted : 23/01/2026 12:09 pm
GaryBushey
(@garybushey)
Active Member
Topic starter answered:
RE: Can not get Buddy3D to connect

Don't worry about it.  I have done enough stuff like that in my time 🙂   But, in this case, I do have the cover off.

Posted : 23/01/2026 12:49 pm
1 people liked
jan.d.slay
(@jan-d-slay)
Estimable Member
RE: Can not get Buddy3D to connect

 But, in this case, I do have the cover off.

No problem. I'm glad you're taking it in stride. In my last job, if the error simply couldn't be found, the rule was: back to the beginning!

Okay, so... the only thing I can think of is to increase or decrease the distance between the QR code and the camera lens, and maybe increase the display brightness.

Prusa Core One - Fast & Clean Start Gcode
Prusa XL - Quick Start Gcode
Posted : 23/01/2026 2:09 pm
GaryBushey
(@garybushey)
Active Member
Topic starter answered:
RE: Can not get Buddy3D to connect

It says it finds the QR code just fine.  But once it does, I never see it in Prusa Connect

Posted : 23/01/2026 2:22 pm
GaryBushey
(@garybushey)
Active Member
Topic starter answered:
RE: Can not get Buddy3D to connect

So I just checked again and it appears to be working.  Very weird.

Posted : 23/01/2026 7:37 pm
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