Jump to content
Ultimaker Community of 3D Printing Experts

Result "melted", how to adjust the settings?

Recommended Posts

I tried printing this gear (width 7,7mm) many times:


With PLA and PVA support. Always some different problem. However now the current problem is that the top of the gear "melted" out of shape. Should be just straight and neat but it deformed and is too big. I need to print many of these so I want to find the perfect settings. What should I adjust to prevent this melting? Or what are the best possible settings for a very, very precise end result?

Share this post

Link to post
Share on other sites

This is a very common problem and very easily fixed. Just print more than one at the same time (in all-at-once mode). So place at least 3 of these into cura and look at slice view and make sure it's printing the first layer of all 3 together, then the second layer of all three (not one-at-a-time mode where it prints one, then starts the second).

This allows the top layers in that small area to cool while printing the next one. also make sure the fans are at 100%.

Also it's slightly better to place them in a line along the X axes (left to right) as that way a fan is more likely to blow on one of the parts that isn't currently being printed.

Even just placing two of these down will make a huge difference.

Also they will probably print faster. Right now you are probably hitting the "minimum layer time" on every layer but with two it can increase the speed.

  • Like 1

Share this post

Link to post
Share on other sites

Thank you, I will try that. However, meanwhile I tried another machine and already got so much better results. The original machine was Ultimaker 3 Extended with PVA. The second machine was Ultimaker 2+ without PVA, building the support below with PLA. The result was much, much sharper and no significant melting problem, without changing the fan settings. I think the UM3 I tried was in a bad shape. The nozzle got clogged every once in a while and the filament also randomly got stuck without any visible congestions. Also the PLA support worked better than the PVA support, although this probably is also due to the UM3 being in bad shape.

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
      • 130 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!