Ask help for leaning prints

[Lofrank 1]

Hello, everyone

I just got my Ultimaker 2 last week.

I have got some leaning prints, as see in the picture:

And I also get some good ones:

What confused me is that I can print cube (show in the picture) successfully just after printing a leaning one, without any adjusting.

Here are some more information:

The leaning problem only occurred on the direction from back of UM2 to front, or from front to the back.

I'm using Cura 15.02.1, with the latest firmware.

I'm using "Normal print" quickprint profile.

I'm using windows 8.1 x64.

Any comments are welcome, thanks.

[danilius 118]

This looks like a mechanical issue. You have something loose, and it get tightened after printing once, then probably loosens again afterwards.

[Lofrank 1]

@danilius

So how can I known which part is loose?

If the belt is loose, I don't think it can be tightened after printing.

Thanks.

[Labern 775]

There are guides under the support section of the main Ultimaker website.

Here is the link to the issue you have: http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide#leaning

Its a very good guide with pictures that show exactly what to look for or adjust.

[Lofrank 1]

Thanks, @labern

I'm trying to fix this problem according your link.

And will give feedback after testing.

Another thing I want to mention here is that the screws of UM2 are really low-quality.

It's easy to slip when using hex wrenches (the edges are scuffed), and I'm doubting whether the screws are able to loose again.

[Labern 775]

Yes I agree that you need to be careful with the screws

The screws are not that bad but the allen keys that they supplied are low quality. dome head screws tend to strip easily as the hexagon hole isn't very deep so care needs to be taken.

[Lofrank 1]

@labern

Nice to see you online.

I have tried to open the extruder, but failed due to three of the four screws stripping.

Maybe need to buy some good ones to replace original ones, but don't know where to buy:angry:

[Labern 775]

Yeah I grabbed a few spares from work

there should be a good fastener store in your area

[IRobertI 521]

Try using a Torx-driver instead, it grabs the screws fairly tightly even if they have been damaged.

[Lofrank 1]

Try using a Torx-driver instead, it grabs the screws fairly tightly even if they have been damaged.

Thanks, I will try this.

[Lofrank 1]

Finally, I made it.

No leaning now.

Thanks @labern again

[Labern 775]

Wow that's a nice print. Glad it's all going good now. You will be pleased