Jump to content
Ultimaker Community of 3D Printing Experts

Amend XY printed size


nigelwebb
 Share

Recommended Posts

Posted · Amend XY printed size

Hi,

Cura 2.1.3, Ultimaker 2+, ABS, 0.4mm & 0.25mm nozzle

I am printing a small part shaped like a square 'C', 25mm square & 5mm thick. The two legs are required to be 1.45mm wide and 3.35mm wide (in the x/y axis), both +/-0.1mm. When I print these with either a 0.4mm nozzle or a 0.25 nozzle the two dimensions come out about 1.6mm & 3.5mm (too large!).

From reading the settings I tried to alter 'Quality - Line Width' which had been at the default 0.22mm (with the 0.25 nozzle) to 0.15mm. This made no difference to the finished print size. I guess this was because this is used to calculate the extrusion rate and side-by-side pitch rather than just fixing the pitch for side-by-side lines.

This is not a scaling issue as to apply a scale would change larger dimensions by a bigger amount. Typically I find that larger dimensions are oversize by a similar amount, ie 0.15mm.

So my question is: what parameter controls the finished part size?

Thanks

Nigel

  • Link to post
    Share on other sites

    Posted · Amend XY printed size

    Well after a lot of work I have discovered the problem. The Flow % default is 107% on the Ultimaker2+/Cura2.1.3. Once I set this to 100% the part reduced in size by almost the required amount. In fact I found that 95% was ideal for the correct size but there are some very small voids starting to appear.

    Nigel

  • 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
     Share

    • Our picks

      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 12 replies
    ×
    ×
    • Create New...