Jump to content
Ultimaker Community of 3D Printing Experts
Sign in to follow this  
aaron

Globbing / pressure in nozzle

Recommended Posts

No, I don't think so. A higher temperature will generally reduce the pressure needed to extrude at a given volume per second, and so may help to reduce the pent up pressure in the nozzle. But it also makes the plastic more runny, and so more likely to drip out of the nozzle anyway during slow moving parts of the print.

Printing faster increases the required head pressure, all things being equal, making it harder to control flow exactly on small areas.

Also, higher temperatures mean that it will take longer for the printed plastic to cool below its glass temperature, and increase the amount of heat transfer into the print during the time that the head stays over the print. For small areas, like the top of a pyramid, the main challenge is cooling the already printed parts enough before laying down the next layer - so generally cooler and slower is probably the best bet - and thinner layers, to minimize the amount of time needed for cooling.

 

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
Sign in to follow this  

  • 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!