Jump to content
Sign in to follow this  
umer-tanveer

cura basic settings

Recommended Posts

Posted · cura basic settings

shell thickness : 0.8 mm ( thickness of the outside shell in the horizontal direction.

this is used in combination with the nozzle size to define the number of perimeter lines and the thickness of those perimeter lines.

can you guide me if the nozzle size is 0.4 then what should be the shell thickness which match the nozzle size and gives us a better print .....

so can you guide me how can i get the cura training manual ???????

 

Share this post


Link to post
Share on other sites
Posted · cura basic settings

Just make the shell thickness a multiple of 0.4mm (0.4 - 0.8 - 1.2 etc etc). Choose whatever shell thickness you need for your model to give it the strength you're after.

 

Share this post


Link to post
Share on other sites
Posted · cura basic settings

How important is this? My nozzle is 0.4mm and i have been printing walls at 1.0mm with no apparant problems... Should i stick with 0.8 and 1.2mm?

Share this post


Link to post
Share on other sites
Posted · cura basic settings

It's important in the sense that using a number like that causes cura to over extrude on the perimeters. To create the 1mm wall it will extrude two walls of 0.5mm each which it accomplishes by over extruding a bit and letting the flat of the nozzle squish the line out. If you're already printing around the limit of your printers capacity this could push it over the edge so to speak.

So it shouldn't be a problem, but it could be, so it's better to just make it a non factor.

 

Share this post


Link to post
Share on other sites
Posted · cura basic settings
It's important in the sense that using a number like that causes cura to over extrude on the perimeters. To create the 1mm wall it will extrude two walls of 0.5mm each which it accomplishes by over extruding a bit and letting the flat of the nozzle squish the line out. If you're already printing around the limit of your printers capacity this could push it over the edge so to speak.

 

So it shouldn't be a problem, but it could be, so it's better to just make it a non factor.

Cheers.. Its good to know.. I remember reading at the start that the setting should by multiplesf the nozzl ize and completely forgot/overlooked this.. I will maoe changes to ky default config.. Cheets.

Share this post


Link to post
Share on other sites
Posted · cura basic settings

Well.. Changing my wall thickness has taken me a step back.

I generally print 1mm for everything and my prints have been fine.. When I use a "brim" it snaps right off.

But based on this discussion I did a test with 1.2mm and the results surprised me.. The brim was impossible to remove.. But the bigger shock was that my dimensions changed.

I was printing some M8 (8mm) Bolt Caps.

http://www.thingiverse.com/thing:394364

. And with 1mm wall I had the opening size spot on so that it fitted the head.... But when I changed to 1.2mm, the opening was MUCH smaller.. I measured the 'wall' of the CAP, and it was 0.5mm thicker than when I print at 1mm.. So then I tried at 0.8mm and had the same results.. 1.2mm and 0.8mm give me a MUCH thicker wall than 1.0mm.

And this is the bit I don't understand.. I thought the EXTERNAL dimensions of a model are defined in the STL file.. So in this case, even though there is a 'wall' its got an inside and outside. And I would have assumed that changing the wall thickness in CURA would not have affected the finished model.

I can't really work out or understand what I am seeing to be honest.. And have taken a step back...

Does what I said make sense? Can it be explained?

Jon

 

Share this post


Link to post
Share on other sites
Posted · cura basic settings

External dimension are defined in the STL file. So what you are seeing has to be some other effect...

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Our picks

    • Ultimaker Cura 4.0 | Stable available!
      Ultimaker Cura 4.0 is mainly focused on the improved user interface and cloud integration.
      As always, we want to collect your user feedback for this release. If there are any improvements you can think of, feel free to mention it here and help us to shape the next release.
      • 23 replies
×
×
  • Create New...

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!