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I want thick lines!  

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antonasberg
(@antonasberg)
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I want thick lines!

Hey guys, this is my first post here!

So, I have been printing for a couple of years now. I have only used the default 0.4 nozzle but now I want to explore som artistic expressions. I am really impressed by Kowafatcompany's work and would like to learn how to print those really thick lines. 

He is using a 1 mm nozzle with 1.75 filament. His line width is 1.4mm and the height is 1mm. He also states that he prints at a speed of 25mm/s. 

I have a 0.8mm nozzle installed now and have "played" around some with the settings in the slicer, but I really can't seem to get a grip of all inputs and terms. Does anyone have experience with this technique and wants to share their settings in the slicer? So thankful for any replies.

Postato : 09/05/2024 12:42 pm
Eef
 Eef
(@eef)
Reputable Member
RE:

no experience with his specific technique. Some things I saw in the short search about this: 
gives an idea on how he designs
when printing he seems to often use vase mode (what seems logical to me). 
He is using a 1 mm nozzle with 1.75 filament. His line width is 1.4mm and the height is 1mm. He also states that he prints at a speed of 25mm/s. 
That also fits to vase mode. I did experiments with a nozzle 0,6mm and width 1.5 mm (2,5 x nozzle width. Using that formula with 0.8mm you can easyly go up to 2mm width. With layerheigth 1 mm, you will surely have nice, fat lines. I would experiment there with even thicker layer. (what about using 2 mm heigth, giving an rounded square layer). 

Speed has to be very low. All this filament has to be melted. For example: 2 mm width + 2 mm heigth compared to o,4 width + 0.2 mm layer height =  2/0,4 * 2/0,2= 50 times the volume. So speed has to be 1/50 of normal speed to get the same volume processed. 

Design a small item (or just take a calibration tube) and see what happens. Don't forget +> set slicer to vase mode (spiral vase in prusa slicer). 

We will do what we have always done. We will find hope in the impossible.

Postato : 09/05/2024 2:23 pm
antonasberg hanno apprezzato
antonasberg
(@antonasberg)
Utenti
Topic starter answered:
RE: I want thick lines!

Hello, and super thanks for your help! Really appreciate it!

I am pretty new to all this so you'll have to excuse me if I ask dumb questions, but is it possible to set the layer height to a larger number than the nozzle size? Prusa Slicer won't let me? Could you maybe go around this problem, telling Slicer that the nozzle is a larger number than it is in reality?

Yes, I too believe that the speed has too be decreased significally, but do you think it is possible to play around with the flow and heat?

You have understood what I'm looking for, it's those really rounded layers where each layer looks like it's been "laid" down rather then pressed down.

Again, thanks for your help and engagement, means a lot!

Postato : 10/05/2024 9:18 am
Eef
 Eef
(@eef)
Reputable Member
RE: I want thick lines!

thanks for the compliment. I like (to say it in startrek words): "To go where no man has gone before" 😉 

Posted by: @antonasberg

is it possible to set the layer height to a larger number than the nozzle size? Prusa Slicer won't let me? Could you maybe go around this problem, telling Slicer that the nozzle is a larger number than it is in reality?

Yes, I too believe that the speed has too be decreased significally, but do you think it is possible to play around with the flow and heat?

I have to study here too: 
- you are right, height cannot be more then nozzle width. So for now set it on 0.8 mm
also change max.layer height 
- change layer width to 2mm (all layer width types)
- set spiral vase to YES. 
This way I could slice in Prusa Slicer without getting errors. Looks like this: 

Left is result of the nut (right) when printed that way. 
You could tell the slicer you have a nozzle of 2mm (I did not test that), but you have to recalculate the flow of filament, because it is calculated very precisely. 

If you change the flow, that could do not much, because it will cause over- oder underextrusion in the nozzle, changing pressures there. I think that will give errors. And flow cannot be higher then the extruder can melt. So not much to change there. 

If you want to go further then that: 
- do research on internet, search for artists what did stuff like this. 
- search for experimental slicers like grasshopper and others. (or how to change the slicer yourself, in case you are in to programming. 
- nice example on how to exploit the vase mode: https://discourse.mcneel.com/t/3d-printing-vase-mode-for-fractals/159007  

I know there is more around there.   

We will do what we have always done. We will find hope in the impossible.

Postato : 10/05/2024 6:26 pm
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