Oozing Tips

Print Processing Tech Tips: Oozing Filament, Poor Print Quality

Here at 3D Platform we take pride in our open-market solutions. Our Print Processing Tech Tips series focuses on best practices for processing procedures so you’re guaranteed the perfect print every time.

Today, we’re focusing on oozing filament and poor print quality.

Problem

3DP Failed Print

Failed Print: The layers are not smooth. Instead, each bead of filament is bulging and oversized.

Sometimes a print doesn’t finish as smooth as we want it to be. Each layer is bulging and oversized, which is due to a combination of factors:

  1. Nozzle temperature too high.
  2. Print speed too low.
  3. Flow rate (extrusion multiplier) too high, pushing too much material through the nozzle.

Solution

Fixed Print

Fixed Print: Smooth, even layers are essential to a successful print.

To help achieve those smooth layers that are essential for a successful print, try the following processing tech tips:

  1. Reduce the temperature of the nozzle. You can verify the optimal temperature by raising the z-axis, heating the nozzle, and extruding a length of filament. The bead should resemble a smooth lasso.
  2. Increase the print speed to 2,100 mm/min. If your speeds are set too slow, the material will get too hot and start to ooze.
  3. Decrease the flow rate (extrusion multiplier) to reduce the amount of material being pushed through the nozzle.

Rule of Thumb: Only make one adjustment at a time so you can see the result of each change.

Word of the Day: Elephants Foot is when the lowest layers of a print flare out. It’s generally caused by the nozzle being too close to the build area; or the first layer width is set too high. By increasing the Z-Gap or reducing the first layer width, you’ll achieve a first layer that adheres but doesn’t flare.

For more helpful tech tips on how to prevent oozing and poor print quality, check out the full case study.

For other helpful hints, check out our blog.

What are some of your best practices and tech tips for oozing material and poor print quality? We want to know. Share them with us on Twitter #3DPPrintingTips, or send them to marketing@3dplatform.com.

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