Unlock Perfection: 9 Fixes for Flawed 3D Prints Every Maker Must Know

Hey there, fellow tech lovers! I’m Carolina, your go-to gal for everything that sparks my interest, especially in the realm of 3D printing. Let me walk you through a concern I’ve been itching to address: the solidity of 3D prints.


3D printed creations are diverse in form, and sometimes they end up being less sturdy than we’d like. Perhaps you’re aiming for a lighter construct, and that’s okay. But for those who are seeking a firmer 3D print, let’s dive into the essentials.

Why aren’t my 3D prints solid enough?
The journey to perfection isn’t always smooth, but knowing the ‘whys’ is half the battle.

  • Low Infill Density: More often than not, a diminished infill percentage is the culprit behind the initial layer’s flimsiness. Too few top layers can also lead to this issue.
  • Subpar Top Layer Specifications: Insufficient top layers can’t bridge the infill gaps, leading to a less-than-solid print.
  • Under Extrusion: When your 3D printer’s nozzle isn’t dishing out the expected amount of filament, it’s called under extrusion. This can leave the 3D construct fragile.
  • Unsuitable Printing Speed: Rushing might leave your prints with voids, whereas too leisurely a pace can distort them due to prolonged filament heat exposure.
  • 3D Printer Mechanical Glitches: From slack screws to depleted gears, a range of mechanical concerns can affect your print’s robustness.
  • Filament Standards and Diameter Calibration: Overlooking the filament’s grade and verifying its diameter can greatly impact the print’s quality.

How to make your 3D prints solid?
Knowing the issues is one thing, and addressing them is another. Here’s your tech checklist:

  • Boost Infill Percentage: Increasing the infill density is crucial. It serves as the bedrock for your top layers. Aim for a sweet spot that aligns with your printer’s capabilities.
  • Alternate Infill Design: Different infill patterns bring varied densities. It’s worthwhile to explore and select the one that serves your purpose best.
  • Tweak Top Layer Preferences: Besides infill intricacies, consider the number of top layers and the wall thickness to enhance your print’s solidness.
  • Address Under-Extrusion: Tackle this by adjusting the hot-end temperature, ensuring the nozzle is clear of obstructions, or even swapping worn-out parts. Remember, every layer counts!
  • Regulate the Print Pace: Ascertain that your 3D printer can match up to the speed you’re setting. Often, reducing the speed a notch can be the game-changer.
  • Fortify your 3D Print’s Base: Ensuring a robust start is pivotal. Adjusting the model’s orientation or employing brims can make a significant difference.
  • Rectify Mechanical Snags: A smooth printing process requires everything to be in tip-top shape. From regular lubrication to timely nozzle cleansing, be proactive!
  • Opt for Superior Filament and Validate Diameter: Don’t skimp on filament quality. Also, cross-check that the filament diameter matches the software’s specifications.
  • Enhance Cooling: Efficient cooling can counteract sagging top layers. Consider using specialized fan ducts to target the airflow precisely.

Encountering spongy 3D prints?
If your prints feel more like a sponge than solid, under extrusion is usually the main suspect. A few pointers:

  • Reconfirm the filament diameter setting.
  • Ensure the nozzle’s size matches your slicer’s specification.
  • Calibrate extruder steps and maintain an optimal printing temperature.
  • Check that your filament isn’t moisture-laden.