How can I safely identifying a scratched nozzle?

[mnis 11]

Hello

I think the title says it all, but how do I identify certainly a scratched nozzle?

Meets a magnifying glass for viewing the nozzle, or I have to use bigger guns?

How should look like a smooth horizontal PLA surface, at a 0.4mm nozzle? Has anyone suitable examples?

Can a slightly scratched nozzle to be repaired, eg by polishing or grinding?

Has anyone tried it?

Thanks in advance for advice and suggestions.

Markus

[Dim3nsioneer 557]

There was a thread here in the forum about polishing / sanding UM1 nozzle a few months ago. It seems, that with the right equipment one can even improve the performance of a new noozle.

Personally, I haven't tried any of these procedures. I'm still a bit sceptical about mechanical treatment of a nozzle.

 

[mnis 11]

Oh, thank you, I have not actually looked for it. :oops:

Markus

 

[illuminarti 18]

See:

http://umforum.ultimaker.com/index.php?/topic/2955-check-your-nozzle-tip/

 

[mnis 11]

Thanks, that helps. :smile:

Markus