How to Sand Detailed 3D Prints: A Complete Guide

If you’re looking to master how to sand detailed 3D prints, you’ve come to the right place. Sanding is an essential step in the post-processing of 3D prints, particularly those with intricate details. This comprehensive guide will take you through each step in the process, ensuring a smooth and polished finish.

How to Sand Detailed 3D Prints
From by Google DeepMind

How to Sand Detailed 3D Prints: Materials You’ll Need


Before you dive into the sanding process, it’s crucial to prepare your workspace and the 3D printed object.

Workspace Setup

  1. Choose a well-ventilated area for sanding.
  2. Place a soft cloth or mat on the table to protect the 3D printed object from scratches.
  3. Wear a mask and goggles to protect yourself from dust and particles.

Step-by-Step Instructions: How to Sand Detailed 3D Prints

Here’s a step-by-step guide…

Step 1: Start with Coarse Sandpaper

Begin by using a piece of 120-grit sandpaper. Apply even pressure and make circular motions over the surface of the 3D print. Pay special attention to seams or lines.

Step 2: Progress to Finer Grits

After using the 120-grit sandpaper, move on to a 220-grit. Repeat the process and focus on smoothing out any remaining rough areas.

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Step 3: Wet Sanding (Optional)

If you wish to wet sand, soak a piece of 400-grit sandpaper in water for a few minutes. Lightly sand the 3D print using the wet sandpaper. This will result in a smoother finish.

Step 4: Finishing Touches

For the final touch, use an 800-grit sandpaper to polish the surface. Be gentle and take your time to ensure you don’t ruin the details.

For more articles on sanding, click here: Sanding: Your Full-Circle Guide to Smooth Mastery

Step 5: Clean the Object

After sanding is complete, use a soft cloth to remove any remaining particles or dust. Your 3D print is now ready for painting or display.


Knowing how to sand detailed 3D prints is essential for achieving a professional-looking finish. By following these steps, you’ll be well on your way to perfecting your 3D printed creations.

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