Course Content
Module 2: 3D Printers & Materials
This section gives an overview of the various 3D Printer components, 3D Printer types and materials.
0/4
Module 3: 3D Printing File Types
This lesson provides a comprehensive understanding of the myriads of file extensions in the 3D Printing.
0/6
Module 4: Introduction to 3D Modeling
Start designing your own printable objects with easy-to-use modeling tools. This module introduces you to beginner-friendly 3D modeling software and teaches you how to create objects that are optimized for the printing process.
0/4
Module 5: Slicing and G-Code
Before printing, models need to be sliced into printable layers. Learn how slicing software works, how to adjust print settings like layer height and infill, and how the slicer generates the G-code that your printer uses to build the object.
0/3
Module 6: The Print Process
Now it’s time to bring your models to life. Learn how to set up your printer, load materials, calibrate settings, and start your first print. This module also covers how to identify and fix common printing issues like warping or layer shifting.
0/3
Module 7: Post-Processing
After printing, your model might need some finishing work. Discover how to remove supports, sand rough edges, paint your models, and combine printed parts into assemblies. These techniques can take your prints from good to great.
0/3
Module 8: Introduction to 3D Scanning
Learn how physical objects can be digitized using 3D scanning technology. This module introduces different scanning methods, software for cleaning and editing scan data, and how scanning is used in design, repair, and reverse engineering.
0/3
Module 9: Real-World Applications
Explore how 3D printing is transforming industries like healthcare, automotive, education, and aerospace. See case studies and examples of how professionals use 3D printing to solve real problems and prototype new ideas.
0/4
Module 10: The Business of 3D Printing
In this module, students explore how 3D printing extends beyond the workshop and into the world of business, sustainability, and emerging markets. From eco-conscious manufacturing to digital entrepreneurship, learners discover how additive manufacturing is reshaping supply chains, product development, and global commerce. The module begins by examining sustainability trends, showing how 3D printing reduces waste, supports local production, and enables environmentally friendly materials. Students then move into the future of additive technologies, including bioprinting, AI-driven design, and off-planet construction. The module also highlights how 3D printing enables new business models—from custom product startups and digital part libraries to contract printing services and hybrid manufacturing workflows. Students gain insight into market opportunities, value propositions, and the strategic use of 3D printing to create value across industries. Whether learners aim to start a business, join an innovative company, or simply understand the economics behind additive manufacturing, this module equips them with the tools and trends that define the future of 3D printing as a business.
0/5
Private: 3D Printing Fundamentals.

🎯 Lesson: Painting and Assembly

🧠 Focus: Learn how to transform your 3D prints into finished, visually striking, and functional models through proper painting techniques and multi-part assembly methods.


✅ Lesson Summary

Painting and assembly are key final steps that elevate your 3D printed models from raw plastic to professional-quality creations. Whether you’re prepping parts for display, cosplay, or functional use, understanding how to prime, paint, and assemble parts ensures durability, realism, and visual impact.


🎓 Learning Objectives

By the end of this lesson, students will be able to:

  • Choose the right paint and primer for FDM and resin prints

  • Prepare 3D printed parts for paint using sanding and sealing techniques

  • Apply painting techniques including base coats, detailing, and finishing

  • Assemble multi-part prints with adhesives, fasteners, or design-fit joints

  • Identify best practices for both artistic and functional applications


📘 Lesson Content


🟩 1. Preparing for Paint

Before applying any paint, the surface must be prepped properly:

Task Notes
Sand Smooth out layer lines and imperfections (see previous lesson)
Clean Use isopropyl alcohol or warm soapy water to remove dust/oils
Apply filler primer Spray 2–3 light coats to fill small gaps and help paint adhere
Dry fully Allow 12–24 hours for primer to cure before painting

🧼 A clean, smooth surface = better paint adhesion and visual finish.


🟨 2. Choosing the Right Paint

Paint Type Best Use Notes
Acrylic (water-based) Safe, easy cleanup Best for brush work and airbrush; low odor
Spray paint (enamel or acrylic) Smooth base coats, large parts Shake well, apply thin coats, watch for runs
Oil-based Durable and glossy finishes Takes longer to dry; wear gloves and ventilate
Resin pigment paints Resin miniatures and clear parts Great for detail work; often paired with UV curing

🟥 3. Painting Techniques

🎨 Base Coating

  • Always start with a primer coat

  • Apply light mist coats of your base color

  • Hold spray can or airbrush 6–12 inches away from part

  • Let each coat dry before applying another

✍️ Detail Work

  • Use fine-tip brushes for edging, eyes, and small textures

  • Dry brushing technique can highlight raised areas

  • Use masking tape or liquid mask for sharp paint boundaries

✨ Finishing Touches

  • Apply gloss or matte clear coat for protection and aesthetic

  • Add weathering effects with dark washes, scuffing, or pigments


🟦 4. Assembly of Multi-Part Prints

Whether assembling large models or multi-component prototypes, good joints and adhesives are essential.

🧱 Fitting

  • Use alignment pins or interlocking joints in your design

  • Dry fit parts before applying glue to ensure alignment

  • Sand mating surfaces for better grip

🧪 Adhesives

Adhesive Type Use Case Notes
Super glue (cyanoacrylate) General-purpose plastic bonding Fast-setting, clean contact surfaces first
Epoxy Heavy-duty bonding Takes longer to cure but very strong
Welding solvents (e.g., MEK for ABS) Chemical bonding Melts plastic slightly for permanent bond
Hot glue Temporary or large surface areas Not ideal for precision or strength

🛠️ Optional: Use clamps or rubber bands to hold pieces together during drying.

🔩 Mechanical Assembly

  • Design parts with screw holes, snap fits, or inserts

  • Use brass heat-set inserts for threaded connections in FDM prints

  • Resin prints can use tiny magnets for modular designs or lids


🟧 5. Assembly Tips by Use Case

Application Tips
Cosplay Props Sand edges well; reinforce stress points with epoxy or rods
Miniatures Paint before full assembly; use tweezers for small parts
Functional Parts Use epoxy or hardware fasteners; avoid over-tightening on plastic
Models/Figurines Attach limbs or accessories after painting for easier access

🟫 6. Common Mistakes and How to Avoid Them

Mistake How to Avoid
Paint runs and pooling Apply thin coats, allow proper drying between layers
Glue smears or fogging Apply glue sparingly and clean immediately if needed
Misalignment during assembly Dry-fit first and use positioning aids (clamps, tape)
Skipping primer Always prime for better adhesion and smoother finish

🧠 Summary

Painting and assembling your 3D print adds the final polish, turning it into a showpiece, prototype, or usable part. With the right tools, preparation, and patience, you can produce results that rival traditional manufactured products—customized to your vision.

🖌️ Finish your prints with pride—your creativity doesn’t stop at the print bed.


📂 Optional Activities

Assignment:

  1. Choose a multi-part model (toy, figurine, or case)

  2. Print and paint each part with primer and base color

  3. Assemble the model using at least one adhesive or mechanical joint

  4. Submit a photo gallery and a 1-paragraph reflection


📎 Additional Resources

Sign-up for our newsletter. Be the first to hear about Canion3D Inc. news.
Subscribe
close-image
Translate »