Want to learn how to make a coin in Blender? This guide will walk you through the entire process, from a simple 3D disc to a detailed, textured collectible ready for rendering or animation. Whether your a beginner or looking to refine your hard-surface modeling skills, creating a coin is a fantastic project that teaches core techniques.
You’ll learn about modeling, adding details with modifiers, creating materials, and even a bit of animation. The steps are straightforward and build on each other, so you can follow along at your own pace. Let’s get started on building your digital currency.
How to Make a Coin in Blender
First, you need to set up your Blender workspace. Open Blender and you’ll see the default cube. We won’t need it, so you can select it and press ‘X’ to delete it. Now you have a clean slate to begin.
Setting Up Your Workspace and Reference
It’s always a good idea to have a reference image. Find a picture of a coin you like—maybe a historical piece or a custom design. This will help you with proportions and details.
1. Press ‘N’ to open the sidebar in the 3D Viewport.
2. Go to the “Background Images” section, click “Add Image,” and then “Open.”
3. Navigate to your reference picture and load it.
4. You can adjust the opacity and location so it sits behind your model in the front or side orthographic view.
Creating the Basic Coin Shape
Coins are essentially cylinders. We’ll start with one and refine it.
1. Press Shift + A to open the Add menu.
2. Navigate to Mesh > Cylinder.
3. In the pop-up menu at the bottom left (it appears after you add the cylinder), set the vertices to something high like 64. This gives us a smooth circular edge from the start.
4. With the cylinder selected, press Tab to enter Edit Mode.
5. Select the top and bottom faces (the circular ends). You can do this by holding Alt and clicking on an edge loop near the face.
6. Press E to extrude, then immediately press S to scale. Scale these faces inwards slightly to create the raised rim that most coins have. This is a key feature in learning how to make a coin in Blender that looks authentic.
Modeling the Main Relief
The raised design on a coin’s face is called the relief. We’ll use the Boolean Modifier for a non-destructive approach, meaning we can change it later.
1. Press Tab to go back to Object Mode.
2. Add a new plane (Shift + A > Mesh > Plane). This will be our cutting object.
3. Scale and position this plane above one face of your coin cylinder.
4. With the plane selected, go to the Modifier Properties tab (the blue wrench icon).
5. Add a Solidify Modifier. Give it a small thickness, like 0.02m.
6. Now, in Edit Mode on the plane, you can model a simple shape, like a star or letter. Extrude faces, inset them, and move vertices to create a simple 3D design. Keep it slightly higher than the coin’s surface.
7. Once your design is ready, select your coin object.
8. Add a Boolean Modifier to the coin.
9. Set the Operation to Union and select your designed plane as the Object.
10. The modifier will add the shape to your coin. You can apply the modifier later if your happy with the result.
Adding Edge Details and Bevelling
Real coins have subtle bevelled edges. This step adds realism and catches the light nicely.
1. Select your coin and enter Edit Mode (Tab).
2. Select the edge loops that run along the top and bottom outer rims. You can select one loop with Alt + Click, then hold Shift and Alt + Click the corresponding loop on the other side.
3. Press Ctrl + B to bevel these edges.
4. Move your mouse to adjust the bevel amount—keep it very small. Scroll the mouse wheel to add more segments to the bevel, making it smoother.
5. Press Enter to confirm.
Using the Sculpt Mode for Organic Details
For worn coins or more organic designs, Sculpt Mode is incredibly useful.
1. With your coin selected, go to the Sculpt Mode workspace (top of the screen).
2. In the top toolbar, ensure Dyntopo is enabled. This allows you to sculpt by adding geometry where you need it.
3. Choose a brush like Clay Strips or Crease.
4. You can gently brush scratches, dents, or wear onto the surface and edges of the coin. Don’t overdo it; subtlety is key for believable damage.
Creating Realistic Materials and Textures
A plain gray coin looks boring. Materials bring it to life. We’ll create a simple gold material.
1. Select your coin and go to the Material Properties tab (red sphere icon).
2. Click New to create a new material.
3. Change the Surface type from Principled BSDF to Glossy BSDF for a metallic look.
4. Click on the yellow color node and choose a gold-like color.
5. For more control, switch back to Principled BSDF. Set Metallic to 1.0 and Roughness to a low value (like 0.2 for polished, 0.4 for worn). Adjust the Base Color to gold.
6. To add surface scratches, we can use a texture. Go to the Shading workspace.
7. Press Shift + A to add a Noise Texture node and a Bump node. Connect the Noise Texture’s Fac to the Bump node’s Height, and the Bump node’s Normal to the Normal input of your Principled BSDF.
8. Play with the scale and detail of the noise texture to create fine grain or scratches.
Lighting and Rendering Your Coin
Good lighting makes all the difference. We’ll set up a simple three-point lighting studio.
1. Delete the default light. Add a new plane, scale it up massively, and position it around your coin as a backdrop.
2. Add a three lights: a key light (bright, from the front/side), a fill light (softer, from the other side), and a back light (behind the coin to highlight the edge).
3. Select each light, and in the Object Data Properties (green lightbulb icon), increase the power and adjust the color slightly for warmth or coolness.
4. To render, go to the Render Properties tab. Choose Cycles for higher quality or Eevee for speed.
5. Adjust your camera angle by pressing 0 on the number pad, then Ctrl + Alt + 0 to align the camera to your current view.
6. Press F12 to render the image.
Animating a Coin Spin (Bonus)
A spinning coin is a classic animation exercise. It’s simpler than it looks.
1. Select your coin in Object Mode.
2. Move the playhead in the timeline to frame 1.
3. With your cursor over the 3D Viewport, press I and choose Rotation.
4. This sets a rotation keyframe at frame 1.
5. Move the playhead to frame 100 (or your desired end frame).
6. Press R, then Z, then type 360 and press Enter. This rotates the coin 360 degrees on its Z-axis.
7. Press I again and choose Rotation to set a second keyframe.
8. Now, when you press Spacebar, you should see your coin spin! You can adjust the interpolation in the Graph Editor for a more realistic start and stop.
Final Steps and Exporting
Once your model, materials, and render are complete, you might want to use it elsewhere.
1. To export for 3D printing, you need a watertight mesh. Apply all modifiers (select each and click “Apply”), then export as an .STL file.
2. For use in a game engine, you’ll likely want to export as an .FBX or .OBJ. Be sure to also export or pack your texture images.
3. For a final rendered image, you can save it directly from the render window or set up output properties in the Render Properties tab.
Common Mistakes to Avoid
When learning how to make a coin in Blender, a few pitfalls can trip you up.
* Too few vertices: A coin with 8 or 16 sides looks low-poly and unprofessional. Start with 64.
* Forgotting the rim: The extruded and scaled rim is what makes it look like a stamped coin, not just a metal washer.
* Over-complicating the design: Start with a simple shape for your Boolean operation. Intricate details can come later.
* Ignoring scale: Blender units matter, especially for rendering and physics. Keep your coin to a realistic size, like 0.03m thick and 0.03m in radius for a typical coin.
* Flat lighting: A single default light makes everything look flat. Always add at least two or three lights.
Taking Your Coin Further
Now that you know the basics, you can experiment. Try making a ancient, tarnished silver coin, or a sci-fi credit chip. Use the Displace modifier with a rust texture, or try the Geometry Nodes system to create a stack of coins. The techniques you learn here apply to countless other projects, from buttons to medals.
Frequently Asked Questions (FAQ)
How do I make a coin with text on the edge in Blender?
The easiest way is to use the Array and Curve modifiers. Create your text, convert it to a mesh, then array it along a circle curve that matches your coin’s circumference. It takes some setup but is very effective.
What are the best settings for a gold material in Blender?
In the Principled BSDF shader, set Metallic to 1.0, Roughness between 0.2 and 0.4, and a Base Color with an orange/yellow hue (RGB values like 0.8, 0.6, 0.2). Adding a slight Noise texture to the roughness can help.
How can I make my coin look old and worn?
Use the Sculpt Mode with a rough brush to add dents. In the material, mix a darker, less metallic shader with your main one using a Noise or Musgrave Texture as the factor. You can also use image textures of scratches and rust.
Why does my boolean modifier not work on the coin?
Make sure your cutting object (the design) actually intersects the coin mesh. Also, check that both objects have clean geometry—sometimes extra vertices or non-manifold edges can cause issues. You may need to apply the solidify modifier to your design first.
Can I 3D print a coin I make in Blender?
Absolutely. Ensure all modifiers are applied and that the mesh is manifold (no holes or internal faces). Use the 3D Print Toolbox addon (enable it in Preferences) to check for issues before exporting as an .STL file.