Smoothing and Painting 3D Printed Helmets: A Step-by-Step Guide

Have you ever wondered how to achieve a flawless finish on your 3D printed helmet prop? In this comprehensive guide, Kevin from 3D Printed Props walks us through the meticulous process of smoothing a Red Hood helmet from Villainous Prop Shops in preparation for painting. From sanding to priming, Kevin reveals the essential steps required to transform a raw print into a professional-looking piece. Let's dive in!

Sanding: The Foundation of a Smooth Finish

Getting Started with Sandpaper

Begin with a 120 grit sandpaper to knock down the visible layer lines on the helmet.
Progress to 220 and 320 grit sandpapers successively for a smoother surface texture.
Ensure thorough sanding across the entire helmet, including hard-to-reach areas, to achieve a consistent finish.

Filling and Smoothing Imperfections

Utilize a sandable filler primer to address remaining lines and imperfections.
Apply multiple coats of primer, allowing each layer to dry adequately for optimal results.
Sand the primed surface with 400 grit sandpaper to refine the texture further.

Detailing with Glazing Putty

Use bondo glazing putty to fill in thicker grooves and minor imperfections.
Apply a thin layer of putty and sand it down to seamlessly blend with the helmet's surface.

Wet Sanding for a Glassy Finish

Employ wet sanding technique with 600 and 1200 grit sandpapers for a polished, flawless look.
Rinse the helmet with soap and water between sanding stages to remove residue effectively.

Summary of Steps:

Start with sanding from 120 to 400 grit to smooth out layer lines.
Apply sandable filler primer and sand with 400 grit for further refinement.
Use glazing putty to fill and sand imperfections.
Perform wet sanding with 600 and 1200 grit for a glass-smooth finish.
Wash the helmet thoroughly before proceeding to the painting stage.

Are you ready to elevate your prop-making game? Stay tuned for the upcoming video where Kevin will demonstrate the painting process to transform this meticulously prepped Red Hood helmet into a stunning masterpiece. Don't miss out on the final reveal of the captivating candy apple red finish!

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