Jump to content
Ultimaker Community of 3D Printing Experts

Printing Small Gaps

Recommended Posts

Hi All,

I have been trying to print a moving part, a cylinder enclosed within a larger structure, there is a 0.012 in gap all around the cylinder and I am unable to get the gap to appear in the print. Here is a picture of the part in cura: 5a333d8443f36_ScreenShot2017-07-31at11_23_13PM.thumb.jpg.9656e31a3437d3c8b5246d764b223f65.jpg

I am printing on a UM3 in ABS.

Can someone help me verify if this should be possible and if my settings are correct?








Share this post

Link to post
Share on other sites

Take this for what it is worth...maybe a plugged nickel at best...

But I have started making interlocking parts, or parts that slide into one or another. I have learned to give a bit of 'slop' room between parts. It will depend on the nozzle and fidelity of the print layers as well as material and environment.

Not to be critical, but as I have found in my limited experience, this is not precision printing and can vary piece by piece. It can be close, but it is not like injection molding.

May I suggest you just make a dummy or two of very simple, quick print objects to test various settings out, and see what gives the fit you desire. And, do not forget things like horizontal expansion to tweak a bit of space between things, here and there. And try to make the outer and inner objects separately so that you can have finer control over the parts using 'per model settings'. Just make sure their pivot points are aligned in your 3D Package.

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

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 86 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!