1

Hi all,

I’m experiencing severe layer shift on my BFB3000. I’ve not had my first successful print yet so I’m a complete novice. It’s not even my printer but on loan from my workplace as they are hoping I can get it working properly.

My observation; the printer lays down each layer slowly and with a seemingly high degree of accuracy, but upon starting the next layer, it can best be described as ‘slamming’ into it. My theory is that it is printing to the front of the layer, then accelerating back so fast that the X axis motors are spinning on the belt, and the new layer is being layed down in the wrong place.

Is this likely? How can I investigate or resolve this if it is indeed the case?

I’ve checked; drive rods are straight, belt tension seems fine, different models, raft adhesion is fine… I’m also investigating Kisslicer but I haven’t got the settings right for a working print yet.

Cheers,

OLC

1 Like
2

Check your y & X axis belt pulleys are connected to the motor shaft tightly and that the motor spindle is not turning inside the pulley. there should be a small grub screw on the pulley.

3

Do you know if you have latest firmware? What are your print settings?

4

I know this post is a little old but I just acquired a bfb3000 and was having the exact same problem. It seems to actually be an over heat issue. Once I opened up the control panel I was able to print just fine. It is my current belief that it either needs more ventilation in the control box or the stepper pot needs to be turned down. They are labelled on the control board, I just need some ceramic tools so I can make adjustments while it is on as per several guides to adjusting stepper pots online. If that doesn’t work I"ll end up adding some holes and a fan to the face plate of the control box.

5

Interesting, thanks for the update. If the printer is still in the hands of the tech department I’ll tell it’s current owner - I have moved on to a Prusa copy to get printing.

Cheers