Jump to content
Ultimaker Community of 3D Printing Experts
m.esfahani@lboro.ac.uk

relationship between cura print speed, layer thickness and nozzle diamter

Recommended Posts

Dear All,

I am new in cura ultimaker 2 software. I was wondering if any one could give me further details about how and on basis of what formula cura is calculating the printing speed and consequent print volume (mm^3/s).

I can see that by changing the layer thickness and nozzle diameter the print speed changes but i am after the formula that the softeare uses to correlate these together.

I do appreciate your taking time to read my message

Kind Regards

Reza

 

Share this post


Link to post
Share on other sites

Hi Cura does not calculate the print speed, you tell it what speed to use. OK I will stop there a sec. If you are using an "eazy" setting or whatever they are called, I have never used one, and you select "fast" I am assuming Cura uses a pre-set speed - maybe I am wrong and it does calculate.

But if you are setting the settings yourself with the basic and advanced tabs and the expert settings then the principle is as follows. You select your layer height and print speed and from this Cura calculates the volume of plastic per second (or whatever the time period is) to be extruded. What you also have to do is set the extruder temp. to ensure that for that given volume, the filament is molten/viscous enough to be able to be pushed through the nozzle. If it is not you will get under-extrusion. So you can see there is a relationship between layer height, print speed and extruder temp. You learn this by experience and by asking the Forum when it goes wrong! Some filaments can cope with a reasonable margin of error, say 10c+, some are quite sensitive and you need to get close. Also to get excellent results you need to get close too; a couple of degrees either way is probably OK but a 5 degree error could affect quality.

 

Share this post


Link to post
Share on other sites

Dear yellow shark,

thanks alot for your info. I am using ultimark 2 , I don't where to set the temprature in cura, do you know where to set the temprature?

As far as I kknow you set the temprature on the machine itself and if so, then how can that relation between layer height, print speed and extruder temp can exsit. I mean yes you are right there should be such relation but what would be that? is there any refrence say for ABS material?

thanks alot for your answer

 

Share this post


Link to post
Share on other sites

Hi, "As far as I know you set the temprature on the machine itself" - well it does not matter how you set it, you are setting it and the relationship exists irrespective of whether you set it via Cura or the printer, or Cura sets it without your input. I am not familiar with the UM interface but somewhere it is possible for you to load Cura so that you can see and set the settings; you will see this.

Capture 2

 

As you will see the print temp. is set on the basic tab, along with the layer height and the extruder temp.

 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Our picks

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies
×

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!