Fidget Gear Ring V3 – Triple Herringbone Planetary Gear - Anti Stress Ring - 51 Different Sizes

Fidget Gear Ring V3 – Triple Herringbone Planetary Gear

🆕 Update – Ring Release Tool Included

Since some users have experienced difficulties loosening the gears after printing, I have created matching two-piece ring clamps for every ring size as well as a dedicated holding handle.

This tool makes it much easier to securely hold the ring and carefully release tight Print-in-Place gears after printing.

⚙ Mechanical Fidget Ring with Triple Herringbone Gears

Experience a unique combination of engineering, precision, and everyday fidget fun with this Fidget Gear Ring featuring a triple herringbone planetary gearbox.

The three-stage herringbone geometry provides smooth and satisfying movement while securely retaining the planet gears inside the mechanism. Compared with conventional planetary gear rings, it is extremely difficult for the planet gears to slip out during normal use.

The result is a compact, wearable mechanical fidget toy with fascinating gear movement and distinctive tactile and acoustic feedback.

📏 51 Ring Sizes Included

The model is available in 51 different sizes, covering an inner circumference from 35 mm to 85 mm.

Not sure about your ring size?

👉 Ring Size Measuring Set:

❤ Why You'll Love It

🔄 Satisfying gear movement
The triple herringbone mechanism creates smooth, repetitive movement with a distinctive mechanical feel.

🧘 Relaxing fidget activity
Rotating the gears can provide a pleasant distraction during stressful, tense, or restless moments.

🎯 Supports concentration
Repetitive hand movements can help some people stay engaged during work, studying, reading, meetings, or exams.

🧠 May be helpful for people with ADHD
Some people with ADHD find tactile feedback and repetitive hand movements useful for maintaining focus or channeling restless energy.

💅 Keeps your fingers occupied
The ring may help redirect nervous habits such as nail biting, skin picking, or lip biting.

🔊 Unique mechanical sound
The precision gears create distinctive tactile and acoustic feedback that many users find satisfying.

💍 Always within reach
Unlike a conventional fidget toy, the ring can simply be worn on your finger throughout the day.

🤓 A miniature piece of engineering
The exposed planetary mechanism makes the ring an interesting conversation starter for anyone who enjoys mechanics and 3D printing.

Please note: This model is intended as a mechanical fidget accessory for relaxation, sensory stimulation, entertainment, and focus. Individual experiences vary. It is not intended to diagnose, treat, cure, or prevent any medical condition.

✨ Features

• ⚙ Triple herringbone planetary gear system

• 🖨 Print-in-Place design

• 🚫 No supports required

• 🔧 No assembly required

• 📏 51 different ring sizes

• 📐 35–85 mm inner circumference

• 🌈 Multicolor-ready 3MF files

• 🎨 3MF models divided into 5 separately colorable parts

• 🔒 Herringbone geometry securely retains the planet gears

• 🔄 Smooth and satisfying rotation

• 💍 Wearable mechanical fidget toy

• 🖨 Optimized for FDM 3D printing

• 🛠 Matching ring clamps and holding handle included for every size

🖨 Print-in-Place – No Supports Required

The complete planetary gear mechanism is printed in one piece and in its final position.

No supports are required and there is no need to assemble individual gears afterward. Once the mechanism has been carefully released after printing, the gears are ready to rotate.

🌈 Multicolor 3MF Files – 5 Separate Parts

The included 3MF files are divided into five selectable parts, allowing individual colors to be assigned directly in your slicer.

This makes it easy to highlight the different components of the planetary gear mechanism and create unique color combinations.

Compatible with multicolor systems such as:

MMU • AMS • ACE • CFS • and similar systems

Even though the model is divided into five selectable parts inside the 3MF file, it remains completely Print-in-Place and requires no assembly after printing.

📦 Use the 3MF File as Your Print Profile

For the best possible print result, I strongly recommend using the included 3MF file as your print profile.

The 3MF file already contains the recommended print settings and model configuration, so you don't have to set everything manually.

🔄 Using the Profile with Another Model

Simply remove the model already included in the 3MF file and add the model you want to print.

This allows you to keep all the recommended print settings from the 3MF file while using them for the required model.

⚠ Important

Depending on your printer, filament, and individual calibration, minor adjustments may still be necessary.

🖨 Recommended Fidget Gear Ring Print Settings

For precise gear geometry and reliable separation between the moving components, I recommend:

• 🔧 Nozzle: 0.4 mm

• 📐 Layer Height: 0.15 mm

• 🧱 Perimeters: 3

• 🧵 Seam Position: Random

• ⚙ Perimeter Generator: Classic

• ↗ External Perimeters First: Enabled

• 📏 Automatic Extrusion Width Calculation: Enabled

• 🔬 Slice Gap Closing Radius: 0.001 mm

• 🚫 Supports: No

🧵 Material Recommendation

PLA works well for the Fidget Gear Ring itself, but PETG is recommended for improved durability and wear resistance.

💧 Very Important – Dry Your Filament!

Perfect print results are only possible with properly dried filament.

Moist filament can negatively affect:

• dimensional accuracy

• surface quality

• layer adhesion

• tolerances between moving components

• smooth gear movement

With Print-in-Place mechanisms, even small dimensional deviations can make a significant difference.

🛠 Ring Release Tool

A dedicated two-piece ring clamp and holding handle is included to make releasing tight gears easier after printing.

The tool securely holds the ring while controlled twisting force is applied to the mechanism.

This can be especially useful when the gears are initially tight because of normal FDM printing tolerances.

🔩 Additional Hardware Required

You will need:

• 1× M6 long nut / coupling nut – 10 mm across flats

• 2× M6 large washers

• 1× M6 × 40 mm screw

• 1× 10 mm combination wrench or open-end wrench

⚠ The M6 coupling nut with 10 mm across flats must be securely glued into the holding handle before using the tool.

💪 Print Settings for the Ring Release Tool

The clamps and handle are exposed to considerably higher mechanical forces than the ring itself. For this reason, PETG is strongly recommended.

🔩 Ring Clamps

• Nozzle: 0.4 mm

• Layer Height: 0.15 mm

• Material: PETG – strongly recommended

• Perimeters: 10

• Supports: No

• Filament: Properly dried

⚠ PLA is not recommended for the ring clamps. It may be too brittle for the forces generated when releasing a particularly tight mechanism.

🛠 Holding Handle

• Nozzle: 0.4 mm

• Layer Height: 0.15 mm

• Material: PETG – strongly recommended

• Perimeters: 8

• Supports: No

• Filament: Properly dried

🔓 How to Release and Prepare the Gears

1. Let the Ring Cool Completely

After printing, leave the ring on the build plate until it has cooled completely.

Do not attempt to release the gears while the part is still warm. Once cooled, carefully remove the ring from the build plate.

2. Sand the Flat Surfaces

Place P120 grit sandpaper or finer on a flat surface.

Carefully sand both flat surfaces of the ring to remove minor printing irregularities.

Keep the ring flat and remove only as much material as necessary.

3. Insert the Ring Clamps

Insert both parts of the matching ring clamp into the ring.

⚠ Make sure both clamps are completely and correctly seated inside the corresponding grooves.

Incorrect positioning can damage the ring or release tool when force is applied.

4. Install the Screw and Washers

Position the two large M6 washers and insert the M6 × 40 mm screw through the ring clamps.

5. Attach the Holding Handle

Screw the holding handle onto the M6 screw.

Make sure the M6 coupling nut is already securely glued inside the handle.

6. Secure the Ring

Using a 10 mm wrench, gradually tighten the M6 screw until the ring is securely held between the clamps.

⚠ Do not overtighten.

The ring only needs to be tight enough that it cannot slip while releasing the gears.

7. Release the Gears

Hold the handle securely and apply a short, firm clockwise twisting motion to the ring.

💡 A short and controlled movement is preferable to continuously applying excessive force.

8. Need More Grip?

If your fingers slip, use:

• a thin rubber mat

• a rubber sheet

• non-slip gloves

The additional friction makes it considerably easier to securely grip and rotate the ring.

9. Work the Gears Back and Forth

Once the gears have broken free, leave the ring mounted on the holding handle.

Rotate it back and forth repeatedly for approximately 1 minute.

This helps remove fine filament strings and small printing residues between the moving surfaces.

The mechanism should gradually become smoother.

10. Clean with Soap

Apply a small amount of soap between the moving gears.

Rotate the ring back and forth for approximately another minute.

This helps loosen and flush out fine printing residue.

11. Rinse Thoroughly

Rinse the mechanism thoroughly with clean water while continuously rotating the gears back and forth.

Continue until all soap and loose printing residue have been removed.

12. Let It Dry

Remove the ring from the release tool and allow it to dry completely.

Once dry, rotate the gears again and check that the mechanism moves freely.

🎉 Your Triple Herringbone Fidget Gear Ring is ready to use – enjoy it!

💍 Check Out My Other Ring Designs

If you like this Fidget Gear Ring, take a look at my other 3D printable ring designs as well.

You'll find more mechanical, fidget, decorative, and functional models in a variety of styles and sizes.

👉 Discover my other Ring Models here:

https://www.printables.com/@BOZ_3D/models?search=ring

Ring Size Chart: