Hey there, makers and accessibility enthusiasts! Your favorite blind 3D printing fanatic is back, and today we’re diving into something close to my heart – how to make 3D prints accessible and that everyone can use, regardless of their abilities. Because let’s face it, the whole point of making stuff is for people to use it, right?
Why Accessible Design Matters (And No, It’s Not Just Because I’m Blind)
Let me tell you a story. Recently, I prototyped a tactile emergency map for my workplace. It started as a way to help me navigate during fire drills without becoming an impromptu obstacle course champion. The prototype included braille and regular text labels, along with embossed features showing different areas and exits. While it needs some refinement (looking at you, Version 2.0), it showed me something important – accessible design helps everyone. From the new guy who kept getting lost to the employee who has anxiety during emergencies and needed clear markers, good accessible design makes things better for all users.

The Golden Rules of Accessible 3D Design
Before we dive into the nitty-gritty, let’s talk about some universal principles. Think of these as the “commandments of accessible making” (though unlike Moses, I carried these down from my printer room, not a mountain):
- Make It Tactile: Not just for us blind folks – tactile features help everyone understand and interact with objects more intuitively
- Keep It Simple: Like my life, simpler is usually better
- Think Universal: Design for the widest range of users possible
- Test, Test, Test: And then test some more!
Designing for Visual Impairments (From Someone Who Knows)
Alright, let’s start with what I know best – designing for people who can’t see or have limited vision. Here’s what matters:
Tactile Features That Actually Work
Remember that time you tried reading those barely-raised braille dots on a public sign? Yeah, that’s not what we’re going for. When designing tactile features:
- Make patterns distinct and well-spaced
- Use different textures to convey information
- Keep raised features at least 1-2mm high
- Avoid sharp edges (we feel with our fingers, after all!)
Contrast and Size
For folks with some vision:
- High contrast colors matter (think black and white, not “slightly different shades of beige”)
- Make important features bigger than you think they need to be
- Consider glow-in-the-dark filament for low-light visibility

The Online Sharing Problem (Or: Why Your “thing.stl” Needs a Description)
Let me rant for a minute about something that drives me absolutely bonkers – downloading a file called “thing_final_v2.stl” with zero description. Listen, designers, I love that you’re sharing your creations, but as a blind maker, I need to know what I’m downloading! And it’s not just me – everyone benefits from good descriptions.
When you upload to Printables, Thingiverse, or any other platform:
- Write clear descriptions of what your thing actually is
- Include measurements and important features
- Add alt text to your images (yes, blind people use 3D printing sites!)
- List any specific printing requirements
- Document any assembly steps
Remember, the 3D printing community is diverse. Not everyone can see your pretty pictures, and “just look at the image” isn’t helpful instructions. Take those extra few minutes to write good descriptions – your users will thank you!
Designing for Motor Impairments (Because Hands Come in All Shapes and Abilities)
Now, let’s talk about making things for people who might have limited hand strength or mobility. This is where 3D printing really shines!
Grips That Actually Grip
- Make handles larger and more ergonomic
- Add texture for better grip
- Design for various hand positions
- Consider lever actions instead of twist motions

Smart Sizing
Think about objects like jar openers or light switch extenders:
- Make them sturdy enough to handle leverage
- Design for one-handed operation when possible
- Include mounting options for stability
The Tech Side: Making Your Design Files Accessible
Here’s something we don’t talk about enough – how do we make the actual design process accessible? As a blind designer using OpenSCAD, here’s what I’ve learned:
Text-Based Design
- Use parametric design tools (OpenSCAD is my best friend)
- Comment your code thoroughly (your future self will thank you)
- Use clear, logical structure
- Keep measurements in variables for easy modification
File Organization
- Use descriptive file names (not “thing1final_finalfinal_v3.scad”)
- Include text descriptions of the design
- Document any special printing requirements
Testing Your Designs
Here’s my testing checklist (feel free to steal it):
- Print a prototype
- Get feedback from actual users
- Modify based on feedback
- Repeat until people stop complaining (or until your printer begs for mercy)
Real-World Examples and Possibilities
Let me share what’s possible with accessible design. My workplace emergency map prototype included braille and regular text labels, along with embossed features for different areas. The next version will be even better, with:
- Raised lines for walls and paths (much easier to follow than embossed)
- Distinct textures for different areas
- Clear, raised symbols for fire extinguishers and exits
- Improved braille and text labels
- High contrast colors for low-vision users
And here’s what’s possible with accessible 3D printing – imagine:
- Gaming accessories with enlarged buttons and stabilizing bases
- Custom grip adapters for tools and utensils
- Tactile learning materials for students
- Adaptive device holders and mounts
Common Mistakes to Avoid
Learn from my fails (there have been many):
- Don’t assume one size fits all
- Avoid unnecessarily complex designs
- Never sacrifice durability for aesthetics
- Don’t forget about maintenance and cleaning
Final Thoughts: The Future of Accessible Making
The beautiful thing about 3D printing is that it lets us create solutions for specific needs. We’re not stuck with mass-produced items that sort of work – we can design and print things that work exactly as needed.
Remember, accessible design isn’t just about making things for people with disabilities. It’s about making things better for everyone. That light switch extender might help someone in a wheelchair, but it’s also great for kids or anyone carrying too many groceries (we’ve all been there).
So, next time you’re designing something, take a moment to think: “How could I make this more accessible?” Your future users (and possibly your future self) will thank you.
Until next time, keep making, keep learning, and remember – if a blind guy can design accessible 3D prints, you’ve got this in the bag!