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The innovation project

Fret markers you can feel.

Rock for Vision is more than fundraising and performing. It's also about building. I design 3D-printed tactile fret markers so visually impaired musicians can find their place on the neck by touch, and never lose the flow of the music.

The problem

Sight-based markers leave players counting.

Almost every guitar has small dots along the side of the neck at the 3rd, 5th, 7th, 9th, and 12th frets. Sighted players glance at them without thinking. But for a visually impaired musician, those dots do nothing.

Instead, they have to count frets from the nut every single time they change position. It's a slow, deliberate action that breaks the flow of the music right when it matters most.

The solution

Position you can read with a thumb.

My tactile fret markers replace those invisible dots with raised bumps and ridges on the flat edge of the fretboard, right where a player's thumb naturally rests.

As the thumb glides up the neck, each marker's shape tells you instantly where you are: one dome, two domes, three domes, a ridge. No counting, no pause, no broken flow.

Interactive model

Explore the design in 3D.

Drag to rotate · scroll to zoom · or jump to any marker to see how its shape encodes the fret.

Drag to rotate • scroll to zoom
Jump to marker:

Bump relief is shown enlarged so it reads on screen. The real markers protrude just 1.1 mm. Toggle to true scale above.

A tactile language

Five shapes, one map of the neck.

Each marker's shape is unique so it can be told apart by touch alone. There's also a hidden second cue: the base grows longer with each added bump, so even a glancing brush tells you roughly where your hand is.

Fret 3
1 dome
Fret 5
2 domes
Fret 7
3 domes
Fret 9
1 ridge
Fret 12
2 ridges

The octave, fret 12, gets the double mark, echoing the double dots factory guitars already use there. Familiar logic, made tactile.

Engineered to fit

Small, precise, and kind to the instrument.

4 × 1.2 mm
Flat back plate that sits flush on the fretboard edge
1.1 mm
Relief height of each dome or ridge: enough to feel, small enough to stay out of the way
Flat-on-flat
The fretboard edge is flat even though the neck is curved, so a flat-backed marker bonds perfectly
Removable
3M removable double-sided tape holds firmly, then peels clean, with no damage to finishes

Made for borrowed instruments, too.

Visually impaired players often learn on school or borrowed guitars. Because the markers use removable adhesive and never touch the curved back of the neck, resting only on the flat fretboard edge where side dots already live, they add accessibility without leaving a trace.

From the workbench

Designed in CAD, printed for real.

Every marker is modeled to exact tolerances, then 3D printed and tested by touch on a real fretboard edge.

The roadmap

An evolving project.

Rock for Vision's innovation work is just getting started. Each prototype builds on the last, tested with real players and refined over time. Here's what's in the workshop.

Live now
01

Tactile fret markers

3D-printed domes and ridges that let visually impaired players find position by touch. Designed, printed, and playable today.

Explore the design ↑
In development
02

Prototype 1 — coming soon

The next tactile tool is being designed and tested right now. Details, renders, and an interactive model will land here as it comes together.

Coming soon
On the horizon
03

Your idea?

This project grows with its community. If you're a player, teacher, or maker with an accessibility idea for musicians, I'd love to hear it.

Get in touch →
Where music meets accessibility

Help make music playable for everyone.

Rock for Vision pairs live performance with hands-on innovation, raising funds for glaucoma research while building tools that put music back within reach. Your support fuels both.