0.8mm nozzle on the ultimaker 3

[Job_van_gennip 23]

Hi all,

I just recently got a new type of printcore that uses a very similar technique as the Olson block.

I wanted to try printing with this core on the Ultimaker 3 in different settings and especially with different sized nozzles. However Cura does not support different nozzle sizes yet. Does anyone have any ideas how I could fix this? Is there maybe a hidden setting that I have overlooked?

With kind regards,

Job van Gennip

[DidierKlein 729]

Hi Job,

You have to change the line width parameter in Cura.

Default line width is calculated like this: line width = nozzleSize*7/8

I think it's under the quality settings

[Labern 774]

Just set the line width to 0.8 or similar and it will work.

It's the same as setting the nozzle size.

[yellowshark 153]

So does that make the nozzle width on the Printer settings dialogue box superfluous? Why is it there if you set the nozzle size via the line width? Why is it*7/8 rather than *1?. What happens, if anything, if the nozzle size in the Printer settings is set to .4 but the line width is set to .8*7/8?

Just trying to understand fully how this stuff works if I want to swap from 0.4 to 0.8

[Job_van_gennip 23]

It worked great with 7/8 for me.

[ahoeben 1,956]

So does that make the nozzle width on the Printer settings dialogue box superfluous?

 

Yes, kind of. The Machine Settings applies the change to all profiles. If you set the line width in the sidebar, you only change it for the current (custom) profile.

 

Why is it there if you set the nozzle size via the line width? Why is it*7/8 rather than *1?.

 

The materials team makes the standard profiles. They determined you get slightly better results with a linewidth that is slightly smaller than the (advertised) nozzle diameter.

 

What happens, if anything, if the nozzle size in the Printer settings is set to .4 but the line width is set to .8*7/8?

 

What you set in the sidebar trumps what you set in the Machine Settings.

[yellowshark 153]

Thank you for your thorough answer @hoeben , all clear now!