Issues with „Test strips“

Bambu Lab X1 Series Troubleshooting
1

I have a problem with my X1C.

Two stripes are printed on the printing plate during each printing process. One at the bottom and one at the top over the corner.

Over time, both strips have moved further and further back, so that the rear strip is now printed outside the printing area. What could be the reason for this?

I am using the Bambustudio as slicer. This problem occurs with every material and print.

Thanks in advance

BR Flo

2

Check if the nozzle is crooked.

2 Likes
3

There is a joke in there about stainless ‘steal’ nozzles being crooked.

2 Likes
4

The line is offset by more than 5 mm. Can this still come from a crooked nozzle?

5

Are you able to take a photo of the nozzle when removed from the head?

With the nozzle laying on the build plate, take photos top down with the nozzle facing up and another turned 90° so we see it from the side.

Someone else mentioned they had a similar issue after they added custom GCODE into the print which they though offset the model, but offset each layer accumulatively.

Have you added any custom GCODE?

6

Why are you telling him to remove the nozzle? I would think a hardware issue with a crooked nozzle would be immediately obvious?

7

Because the OP already said it isn’t obviously bent.

So, trying to see the nozzle more clearly. If it is bent backward or forward it wouldn’t be easy to see when looking straight at it.

8

As mentioned, their is a high probability that the nozzle is bent. FYI. Your printer came with a spare nozzle in the accessories box so you have a straight nozzle to compare the one on your printer to.

9

Before changing the nozzle, you may want to carefully watch your nozzle during the set-up for a print. If it is getting bent further the more you print, you probably have a recurring issue which may translate to the new nozzle.

Can you spot any likely collissions during printer homing? Is the nozzle colliding slifhtly with the plate during a forward move? For example due to the plate being lifted at the front? All FW up to date?

If you can not spot anything, :crossed_fingers: for a nozzle replacement.

10

Good Morning

It’s like you said… the nozzle is bend…

Is this a operator issue? :smile:

11

It could be…
Did you forgot to empty the plate anytime so the nozzle collided with a print?

12

Well, it"s usually a case of s##t happens. To avoid having the same issue again, it would help to find the cause of repeated nozzle bending uncidents. It is tricky to find that in retrospect though. So on the “what could cause nozzle backward bending”:

  • A clash during the forward move when homing.
  • An in-print clash with the part printing due to warping, curling.
  • An early in print clash with the build plate due to it lifting up from incorrect placement or a foreign object between the heat bed and the plate.
  • An in-print clash due to objects falling in a particularly unlucky way.
    I am sure there are more possible root causes but these are the first to come into my mind.

:crossed_fingers:

13

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