Changing Print Setting from Quality to Detail
 
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Crossing Midnight
(@crossing-midnight)
Active Member
Changing Print Setting from Quality to Detail

If I change the print setting from quality to detail, then shouldn't the extrusion rate go down?  Say from 1 to .9?

Best Answer by fuchsr:

@crossing-midnight I assume you're looking at the 0.25 mm nozzle, which has indeed Max layer height limit defined as 0.15. That doesn't mean that you can't go higher. It's used by the slicer to define an upper limit if you use variable layer height or supports, but you can set layer height to anything you want for everything else. A good rule of thumb is to not exceed 80% of the nozzle diameter, which would be 0.2mm for a 0.25mm nozzle. Check out this Prusa blog entry: https://blog.prusa3d.com/everything-about-nozzles-with-a-different-diameter_8344/ It's an excellent overview of nozzle size, layer height, and impact on detail. 

Posted : 23/05/2022 6:48 pm
Neophyl
(@neophyl)
Famed Member
RE: Changing Print Setting from Quality to Detail

Depends what you mean by extrusion rate though. In general the quality settings are printed slower and with less accel. While this can result in less volumetric flow it’s not always the case. You can use the compare tool in Prusa Slicer 2.4.x to check the differences if you want. 

Posted : 23/05/2022 7:11 pm
Crossing Midnight
(@crossing-midnight)
Active Member
Topic starter answered:
RE:

By extrusion I mean the box that appears in the slicer under filament settings.  

I have an original Prusa mini.  There are some highclass 3D printers out there - smarter than my printer.  I think my printer is not going to extrude slower unless a directive makes it extrude slower.

 

Posted : 23/05/2022 7:39 pm
Neophyl
(@neophyl)
Famed Member
RE: Changing Print Setting from Quality to Detail

That’s what I mean by compare the profiles. A quality profile and a speed profile have different settings. Those settings of course control how the slice is performed. Nearly all printers including those you refer to as high class are actually pretty dumb. They just follow the instructions they are sent. Those instructions are created by the slicer. So yes the printer will print differently, it’s has very little to do with the printer though. 
when you mentioned going from1 to .9 then that sounds like you mean the extrusion multiplier and that shouldn’t change on quality/detail settings. 

Posted : 23/05/2022 8:01 pm
Crossing Midnight
(@crossing-midnight)
Active Member
Topic starter answered:
RE: Changing Print Setting from Quality to Detail

Thank you.   So if I install configurations through the wizard, then the slicer will pick detail configuration because I selected detail.

May I ask another but related question?  Print settings show .2mm as the default first layer but under, printer settings - extruder 1 , I see that .15mm is the max so ...

Why does print settings show .2mm as first layer?  It cannot be done, right?

 

Posted : 23/05/2022 8:49 pm
Neophyl
(@neophyl)
Famed Member
RE: Changing Print Setting from Quality to Detail

Without seeing your installed profiles I cant tell what you are working with.  The wizard installs any of the predefined printers.  Each of those printers will have 1 or more default profiles.  Depends on the installed printer.   The prusa ones have the most as Prusa have put in the effort to create them.  So for a prusa you will generally get multiple default Print profiles for each Printer profiles.  For some of the others you will get less.  Prusa themselves creates the ones for their printers, the ones for other brands are submitted by users for inclusion in the software.

A Prusa MK3 profile for the 0.4mm nozzle under Printer setting>Extruder 1 has a Max layer height defined of 0.25 defined.  However depending on material you are printing in and about a billion other settings its quite possible to print thicker layers than that.  It all depends on the amount of material your hotend can push through.  Thicker layers or wider extrusion can be done if you print slower as the amount you are pushing through will be about the same.  While there are practical limits you can for example print a 0.6 wide extrusion with a 0.3mm layer height quite successfully out of a 0.4mm nozzle.  Its commonly done when printing in vase mode.

You can create/modify and save as many profiles as you like.  Each can be designed for specific purposes, its up to you.  The built in ones are just the basis to get you started.  Although many people print quite happily with the supplied prusa ones for their prusa printer and never alter any settings.  others dont use the default ones at all and just use their own customised ones.  

If you know what you are doing you can create a profile for almost any printer  and also the print profiles but its a lot of work to do which is why the wizard is so helpful.  

 

Posted : 24/05/2022 6:47 am
fuchsr
(@fuchsr)
Noble Member
RE:

@crossing-midnight I assume you're looking at the 0.25 mm nozzle, which has indeed Max layer height limit defined as 0.15. That doesn't mean that you can't go higher. It's used by the slicer to define an upper limit if you use variable layer height or supports, but you can set layer height to anything you want for everything else. A good rule of thumb is to not exceed 80% of the nozzle diameter, which would be 0.2mm for a 0.25mm nozzle. Check out this Prusa blog entry: https://blog.prusa3d.com/everything-about-nozzles-with-a-different-diameter_8344/ It's an excellent overview of nozzle size, layer height, and impact on detail. 

Posted : 24/05/2022 11:34 am
Crossing Midnight
(@crossing-midnight)
Active Member
Topic starter answered:
RE:

Thank you both.   I do not know what I am doing.  I think that I did figure out my problem.  I had a door open for ventilation and the heat off but the May 23rd day was 50 Fahrenheit [10 C].  I calibrated and  the PLA stuck just fine.  I ran the print job and the PLA only stuck when the print head started at the edge.

I will wait for warmer weather and continue reading the handbooks.   I promise to also carefully reread your posts.  thanks so much for helping me.  

This post was modified 1 month ago by Crossing Midnight
Posted : 24/05/2022 6:15 pm
Crossing Midnight
(@crossing-midnight)
Active Member
Topic starter answered:
RE: Changing Print Setting from Quality to Detail

I really appreciate the replies.  Both helped me a lot.  I read a lot of science fiction growing up so a 3D printing should really be part of my life.  I did not give up but frustration required some cool off doing other stuff.  I am a video gamer which is another reason 3D printing will work well in my life.

I managed to print a nice little cone. 

I worked on my next print and wondered what is that click, click, click, click.  Too late I looked for a feed problem and then diagnosed it wrong,  Lots of reading,  Lots of frustration.  I got it half fixed and a friend came over and got me back on my feet.

I printed out coffee funnel last night from the internet.  It fits the top of a hand coffee grinder and directs the beans into the hopper.  Now I will try to design a lid for my grinder which fits well enough to let the crank engage.  I have been holding the beans down with aluminum foil and a rubber band.

Posted : 19/06/2022 5:04 pm
fuchsr
(@fuchsr)
Noble Member
RE: Changing Print Setting from Quality to Detail

Happy to hear you're on track. Just one word caution. Be careful with prints that get in contact with food. You may end up with tiny plastic particles in your food--or coffee. There are a couple of articles on the Prusa blog pages that discuss how to print as food save as possible, which you may want to Google for and peruse. 

Posted : 19/06/2022 5:10 pm
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