A Simple Guide

Before you print, you need the right file format. Not all 3D design files are created equal and some work better than others for printing.

Most Common 3D Printable File Types

• STL – The most universal format for 3D printing. Widely supported and ideal for simple shapes.
• OBJ – Includes color and texture data. Best for artistic models or miniatures.
• 3MF – A modern format with more metadata and better slicing support.

When to Use Each File Type

If you’re designing in Fusion 360, Tinkercad, or Blender, export as STL unless your project requires materials or textures.

Need help converting a file? We’re happy to assist before printing!

One of the most important decisions you’ll make when starting a 3D printing project is choosing the right material. Whether you’re printing a prototype, a mechanical part, or a piece of art, the filament or resin you choose can affect the strength, appearance, and success of your final product.

Why Material Choice Matters in 3D Printing

Every material used in 3D printing has its own set of properties from strength and flexibility to heat resistance and surface finish. Choosing the wrong material can lead to failed prints, brittle parts, or unnecessary expense. Understanding the differences between materials helps ensure you get the best results based on your application.

Overview of Common 3D Printing Materials

• PLA (Polylactic Acid): Easy to print and biodegradable. Ideal for general-purpose prints and prototypes.
• PETG (Polyethylene Terephthalate Glycol): Stronger and more durable than PLA. Great for functional parts.
• ABS (Acrylonitrile Butadiene Styrene): Impact-resistant and heat-tolerant. Used in engineering and manufacturing.
• TPU (Thermoplastic Polyurethane): Flexible and rubber-like. Suitable for phone cases, seals, and wearables.

When to Choose PLA

PLA is perfect for beginners or those creating visual models. It’s affordable, available in a wide range of colours, and prints without warping. However, it’s not the best choice for parts exposed to high heat or mechanical stress.

When to Choose PETG

PETG is ideal for durable parts that need to resist stress or moisture. It offers a good balance between strength and flexibility and is commonly used in mechanical assemblies, tool handles, and enclosures. PETG also has a glossy finish and better UV resistance than PLA.

When to Choose ABS

ABS is known for its high durability and heat resistance. It’s used in automotive components, functional prototypes, and casings. However, it requires a heated print bed and enclosed chamber to prevent warping, and it emits fumes, so good ventilation is essential.

When to Choose TPU or Specialty Filaments

TPU is a flexible filament often used for protective gear, phone cases, and gaskets. Specialty filaments such as carbon fibre, wood-infused, or glow-in-the-dark PLA offer additional features but may require tuning print settings or a hardened nozzle.

Material Comparison Table

Tips for Choosing the Right Material

• Match material strength and durability to the intended use
• Consider the environment heat, moisture, UV exposure
• Think about flexibility or rigidity as needed
• Balance aesthetics vs. functionality
• Ask for advice if unsure experienced printers can help

How BritForge 3D Can Help

At BritForge 3D, we work with a wide range of materials to suit every project. Whether you’re printing a quick prototype or a batch of custom parts, we help you select the right filament based on your goals, budget, and design needs.

Our experts are happy to recommend the best option for your file. Simply upload your model or contact us for a free consultation.

Conclusion

Choosing the right material is critical to the success of your 3D print. With options like PLA, PETG, ABS, and TPU, there’s a perfect filament for every job and BritForge 3D is here to help you find it. Let us bring your ideas to life with the right balance of strength, detail, and value.

Ordering a 3D print online has never been easier, especially with services like BritForge 3D that let you upload your model, receive an instant quote, and choose your material all in just a few clicks. This guide walks you through the full process so you can get your custom part printed and delivered with confidence.

Step 1: Prepare Your 3D Model

The most common file formats for 3D printing are .STL and .OBJ. Make sure your file is watertight (manifold), properly scaled in millimetres, and error-free. Free tools like Microsoft 3D Builder or Meshmixer can help repair your model if needed.

Step 2: Visit the Upload Page

Go to the BritForge 3D upload page. There, you’ll see a form where you can drag and drop your file. Our system automatically checks it and displays a live quote based on volume, material, and quantity.

Step 3: Choose Material and Options

You’ll be prompted to choose your material options typically include PLA, PETG, ABS, or resin. You can also select print resolution, colour, and whether you want supports removed and parts post-processed (sanded or cleaned).

Step 4: Get Instant Pricing

Once your file is uploaded and options selected, you’ll receive a price instantly. This saves time compared to manual quote requests and gives you transparency over costs.

Step 5: Checkout and Payment

Review your order and proceed to secure checkout. Payments can be made via card, PayPal, or other supported methods. You’ll receive a confirmation email with an estimated delivery timeline.

Step 6: Sit Back While We Print

Your file is queued for printing in our UK-based workshop. We keep you updated throughout the process, and once completed, your part is shipped securely to your door.

Why Order from BritForge 3D?

• Instant online quoting
• Expert print review and guidance
• UK-based production for faster delivery
• Resin and FDM options with high accuracy

Tips for Better Prints

• Check wall thickness minimum 1.2 mm for most parts
• Avoid unnecessary overhangs to reduce support use
• Indicate critical dimensions in your message if needed

Need Help?

If you’re not sure which material to choose or need help fixing your file, contact Us and we’ll guide you through it.

Start your project today: Upload your 3D file now and get your custom part printed with care and precision by BritForge 3D.

How Schools and Colleges Can Benefit

3D printing is transforming education across the UK. From primary classrooms to university engineering labs, this technology allows students to bring their ideas to life developing critical thinking, creativity, and real-world problem-solving skills.
At BritForge 3D, we’re proud to support schools, colleges, and educators with high-quality, affordable printing services that bring learning to life.

Why 3D Printing Belongs in the Classroom

3D printing introduces students to the world of design, engineering, and technology in a hands-on, engaging way. Instead of just learning theory, students can prototype, test, and iterate just like professional engineers and designers do.

Educational Benefits of 3D Printing

• Hands-on STEM Learning: Print real-world models to support science, maths, engineering and technology education.
• Encourages Creativity: Students can design and build original projects that they can physically hold and evaluate.
• Bridges Digital and Physical: Teach CAD, design thinking, and prototyping skills with instant physical results.
• Boosts Engagement: Interactive learning that appeals to visual and kinesthetic learners.

Popular 3D Printing Projects for Schools

• Working mechanical gear systems
• Topographic maps and historical models
• Biology models: cells, bones, organs
• Custom tools or classroom organisers
• STEM club competitions and creative design challenges

Supporting the UK Curriculum

3D printing aligns well with the UK’s national curriculum, especially in Design and Technology, Science, and Computing. Students gain digital literacy and problem-solving skills that prepare them for careers in engineering, architecture, product design, and more.

Why Schools Choose BritForge 3D

• Cost-effective printing with bulk education discounts
• Print-ready help and model checking
• Support for both PLA and resin models
• Custom packaging and quick UK delivery

No Printer? No Problem!

You don’t need an expensive school 3D printer. With BritForge 3D, teachers can upload STL files and have models delivered to the school within days ideal for small or large classroom projects.

How to Get Started

If you’re an educator or school leader interested in adding 3D printing to your teaching toolkit, get in touch with us. We’ll help you choose materials, set expectations, and ensure your project fits your classroom goals and budget.

Conclusion

3D printing in education opens the door to interactive, future-ready learning. With expert support and reliable service from BritForge 3D, you can inspire students, reinforce key concepts, and make lessons more engaging one layer at a time.

Why It Matters

When it comes to 3D printing, infill plays a critical role in determining the strength, weight, cost, and print time of your object. Whether you’re printing a functional prototype or a decorative model, understanding infill can help you make smarter design and material choices. At BritForge 3D, we optimise every print to meet your needs and infill is a key part of that process.

What Is Infill?

Infill refers to the internal structure of a 3D printed object. Instead of printing a solid block, most parts are printed with an internal pattern that gives them strength while saving material. The outer shell (or perimeter) is printed solid, while the inside is partially hollow filled with a repeating pattern called infill.

Why Infill Matters

• Strength: More infill = stronger part
• Weight: Less infill = lighter part
• Print Time: Higher infill increases time and cost
• Purpose: Match infill to function (display vs. functional)

Common Infill Patterns

• Grid: Balanced strength and speed. Good for most parts.
• Gyroid: Excellent strength in all directions and efficient material use.
• Honeycomb: Lightweight with moderate strength. Popular for visual appeal.
• Lines: Fastest to print, used for basic prototypes.

Recommended Infill Percentages

How Infill Affects Cost

Higher infill means more material and longer print times which increases the cost. For example, changing from 15% to 50% infill might double the amount of filament used. At BritForge 3D, we help you choose the best balance of strength and budget for your application.

Infill Tips

• Use low infill for decorative or non-functional models
• Choose gyroid or grid for strength and reliability
• Keep in mind that more infill doesn’t always equal better results
• Use multiple perimeters instead of just increasing infill

How BritForge 3D Optimises Infill

We analyse every print job to recommend an ideal infill percentage and pattern based on use, strength, and cost. Whether you’re printing a bracket, toy, or prototype, we tailor each print to perform as needed saving you time and money.

Conclusion

Infill is more than just a setting it’s the backbone of your 3D printed part. Understanding how it works helps you make better decisions, whether you’re designing a prototype or ordering your first custom part. Let BritForge 3D help you find the perfect infill for your next project.

One of the best things about 3D printing is the incredible number of free models you can download and print no design experience needed! Whether you’re looking for practical tools, fun gadgets, miniatures, or educational models, these five websites are go-to sources. At BritForge 3D, we work with all of them and can help you bring any downloaded model to life with professional-quality results.

1. Printables by Prusa

Printables.com is a rapidly growing model-sharing platform from Prusa Research. It’s 100% free and features high-quality STL files from trusted creators. You can browse by category or popularity, and most listings come with print settings and tips.

• ✅ Great for functional prints and hobby projects
• ✅ Active community with frequent competitions
• ✅ No account needed to download

2. Thingiverse

Thingiverse is the original 3D model hub with thousands of files. It’s great for finding creative or educational prints, although quality varies since anyone can upload files.

• ✅ Massive variety of models
• ✅ Ideal for schools and hobbyists
• ⚠️ Check printability before ordering

3. MyMiniFactory

MyMiniFactory is known for professionally curated models and supports many independent designers. It’s especially good for gaming figures, props, and premium-quality designs. Many are free, but some are paid.

• ✅ Excellent for miniatures and cosplay items
• ✅ Filters by licence and printer type
• ✅ Print-ready files with instructions

4. Cults3D

Cults3D is a French-based platform with a creative and artistic twist. You’ll find unique home decor, jewellery, and design-focused models. Some files are free, and others require a small fee.

• ✅ Great for creative and niche projects
• ✅ Many free and high-resolution files
• ⚠️ Mixed file licensing, check before commercial use

5. NASA 3D Resources

NASA 3D Resources offers a curated collection of space-related models, including spacecraft, rovers, and planets all in the public domain. It’s a fantastic tool for educators and STEM outreach.

• ✅ Educational and scientifically accurate
• ✅ Free and public domain
• ✅ Perfect for schools and museums

Tips for Downloading Printable Models

• Always check the file type (.STL, .OBJ, etc.)
• Look for “print-ready” or “tested” labels
• Check model scale and orientation
• Use slicing software like Cura to preview before printing

Print Your Files with BritForge 3D

Once you’ve downloaded your model, simply upload it to BritForge 3D. We’ll review it, suggest the best material, and provide instant pricing. Whether you’re printing a rocket, a phone stand, or a full chess set, we’ll deliver precise, high-quality results all made in the UK.

Conclusion

With thousands of free 3D models available online, the only limit is your imagination. Explore, download, and start printing and let BritForge 3D handle the hard part for you. No printer? No problem.

Print orientation is one of the most important yet often overlooked aspects of successful 3D printing. How a part is positioned on the print bed affects not only how it looks but also how strong it is in real-world use. At BritForge 3D, we evaluate each model to ensure it’s oriented for the best balance of strength, accuracy, and surface finish.

What Is Print Orientation?

Print orientation refers to how your 3D model is positioned during the printing process. This determines how layers are built up, how supports are generated, and how forces act on the finished part.

Why Print Orientation Matters

• Part Strength: FDM prints are weakest between layers. Orient your part to resist stress across layers.
• Surface Finish: Vertical surfaces print smoother than horizontal overhangs.
• Print Time & Supports: Orientation affects how much support material is required and how long a print takes.
• Accuracy: Flat surfaces on the print bed come out cleaner and more dimensionally accurate.

Layer Adhesion and Strength

In FDM 3D printing, parts are built layer by layer. The bond between layers isn’t as strong as the material itself, which means parts can be prone to delamination under stress especially if printed in the wrong orientation. For maximum strength, orient parts so the load is parallel to the layers.

Examples of Optimal Orientation

• Brackets: Print with the flat face on the bed and the arms upright to handle load across the layer lines.
• Hinges or Clips: Align so stress points run along, not between, layers.
• Decorative Models: Choose orientation for better detail visibility and smooth surfaces.

Support Material Considerations

Changing orientation can dramatically reduce the need for supports saving time and material. Parts printed with minimal overhangs are easier to post-process and have a better finish.

Tips for Better Print Orientation

• Minimise large overhangs (greater than 45°)
• Orient parts with the flattest side down for bed adhesion
• Consider the functional load design for it!
• Use preview features in slicing software to evaluate orientation

How BritForge 3D Helps

When you upload a file to BritForge 3D, we assess print orientation to ensure it meets your needs. Whether you’re making a working part or a display model, we tweak orientation, supports, and slicing settings to optimise every job.

Conclusion

Understanding how orientation affects 3D printed part strength can be the difference between success and failure. Our team at BritForge 3D takes the guesswork out delivering durable, high-quality prints designed for real-world performance.