Printer is damaging the prints after a few layers

[youri-hart 0]

We are trying to print a case with our printer however after several layers it looks like the printer is damaging the print see the following picture.

Is this a design issue or a printer issue? The file was created in Sketchup and after that went to STL file.

 

[SandervG 1,521]

Hi Youri,

Thank you for your post.

I have a few questions for you:

At what speed are you printing at this point of the print?

How is the bed leveling / adhesion?

Other models, do they finish normally?

Thank you,

 

[youri-hart 0]

Speed is 100%

Well that is the issue it seems that after several layers the bed is not really moving.The print head is touching the print causing the result as in the picture.

The cup that is delivered on the SD is printing normally.

 

[SandervG 1,521]

Hi Youri,

Thank you for your reply.

100% does not mean anything.

Allow me to explain; if you set the speed in Cura to 50mm/s, the ultimaker will display 100% as 50mm/s

If you set the speed in Cura to 200mm/s the ultimaker will still display this as 100%

100% merely means that it is operating at the speed you set in Cura. You also have the option to

increase or decrease speed, as based on the first example 50% (of 50mm/s) would teach you that your Ultimaker is running at 25mm/s.

Can you try some of the other models, to see how they come out?

Could you relevel the bed?

If you print at a reasonable resolution, it is probably very difficult to actually see the bed move.

What does your very first layer look like?

 

[youri-hart 0]

What would be a good speed to set in Cura?

Will restart the print and set a new picture here.

 

[youri-hart 0]

Ok the print was finished this morning, although it displayed print finished, it wasn't it was only completed for 50%

 

[youri-hart 0]

The reason why it was finished is because the nozzle now does not push any more abs.

 

[SandervG 1,521]

Hi Youri,

Thank you for your reply.

50mm/s would be a good average to start with while printing.

How do you mean ABS?

On the picture I see Silver Grey / Metallic, which is PLA.

Are you switching ABS with PLA?

Are you perhaps confusing PLA with ABS?

What temp have you printed this silver object with?

 

[youri-hart 0]

Hi indeed it was PLA (we only print using PLA)

The temp we have used is 210C, temp bed is 60C.

Currently the printer is not printing at all as the nozzel is stuck, we tried heating it up to 260C that pushed out some junk but still not printing. Have even tried with a small needle to open the nozzel from the bottom but no result.

 

[youri-hart 0]

Ok, the printer is printing again, the PLA was not getting correctly in the nozzel causing the issue that it could not print.