Vuolti

Fastener Strip Generator for 3D Printing

Create a filing or fastener strip that matches your binder, folder or filing system. Start from a standard 2-hole or 4-hole layout or customize strip length, width, thickness, hole spacing and your own label.

Free for private projects All currently available Vuolti generator features are free to use for private, non-commercial projects. No account or access code required.

A filing strip built around your folder

Fastener and filing strips are simple plastic parts, but a replacement only works when several dimensions match: overall length, strip width, hole diameter and, most importantly, hole spacing.

With the Vuolti Fastener Strip Generator, you can create a strip for existing binders, folders and filing systems. Standard presets cover common layouts, while custom geometry can be used when your system differs.

You can also add a permanent label directly to the part. A name, category, project title or short identifier becomes a separate aligned geometry that can be printed in a second color.

What you can customize

  • start from a standard 2-hole preset
  • start from a standard 4-hole preset
  • adjust overall strip length
  • set strip width
  • control material thickness
  • change corner radius
  • use two or four round mounting holes
  • configure hole spacing for the filing system
  • adjust hole diameter
  • add your own single-line text
  • choose a font
  • set text height or font size
  • create raised or engraved text
  • export base and text as separate aligned parts
  • prepare the model for two-color printing
  • download an aligned 3MF
  • export the base as a separate STL
  • export the text as a separate STL
  • switch between simple and advanced modes
  • check geometry before export

What can you use the Fastener Strip Generator for?

The generator works for both replacement parts and personalized filing systems.

  • replacement filing strips
  • replacement fastener strips for folders
  • strips for binders and document systems
  • 2-hole filing strips
  • 4-hole filing strips
  • personalized name strips
  • labeled project folders
  • archive and document organization
  • school and office supplies
  • color-coded filing systems
  • custom dimensions for older or unusual folders

Every value in detail

Every value in the generator and what it does. Open the one you are about to change.

Start quickly with standard dimensions

Common hole patterns can be loaded through standard presets.

The 2-hole standard uses a 95 × 12 mm strip with 80 mm center-to-center hole spacing as its starting geometry.

A 4-hole standard with an 80 mm grid is also available.

Presets reset the important dimensions to defined starting values, after which individual parameters can still be adjusted.

2-hole fastener strip

The 2-hole version works with many common filing and fastening systems.

The key measurement is center-to-center spacing between the holes. In the standard preset, this is 80 mm.

When replacing an existing strip, it is still worth measuring the original part or folder because older and specialized systems may differ.

4-hole fastener strip

For filing systems with four attachment points, the generator can create a corresponding 4-hole strip.

The standard preset uses an 80 mm grid.

Four holes can provide more even guidance on longer strips or in filing systems designed around multiple mounting points.

Customize strip length and width

Not every filing system uses exactly the same outer dimensions.

The generator therefore lets you adapt length and width to the actual folder, binder or custom organization system.

This is particularly useful for older products or special formats where replacement parts are no longer readily available.

Choose a suitable strip thickness

Material thickness affects flexibility, stiffness and print time.

A thin strip uses little material and remains flexible. More thickness can make the part stiffer but also requires more space.

The appropriate value depends on filament, strip size and intended use.

Very thin settings should be tested first because the practical minimum thickness depends on nozzle size, line width, layer height and material.

Round holes that match the filing system

The generator creates round mounting holes whose position and diameter can be adapted to the selected layout.

For replacement parts, avoid simply scaling a finished STL in the slicer because that also changes hole diameter.

A parametric generator keeps overall dimensions, hole spacing and hole diameter independently controllable.

Adjust the corner radius

Corner radius controls the shape of the strip ends.

More rounded corners can produce a softer outline and remove sharp outer corners.

For an exact replacement, the radius can also be adjusted to resemble the original strip.

Add a permanent label

A custom single-line label can be added directly to the strip.

This can be a name, project, school subject, department, year or short category.

Because the label is part of the printed object, no separate sticker is required.

Choose font and text height

You can select an available font and adjust text height.

Very small lettering can be difficult to print cleanly because fine strokes and narrow spaces may disappear.

For functional labels, a slightly larger, clear font is often more reliable than highly detailed typography.

Raised or engraved text

The label can be created as raised or engraved geometry.

Raised text stands above the strip surface and works particularly well for clear two-color printing.

Engraved text sits inside the surface and can create a more subtle appearance.

The better option depends on printing method, visual preference and selected text size.

Prepared for two-color printing

Base and label are created as separate but perfectly aligned geometries.

This makes it possible to print the strip in one color and the label in a second color.

The 3MF contains both parts aligned to each other. Alternatively, base and text can be exported separately as STL files and imported as parts of the same object.

3MF for multicolor workflows

For a convenient two-color workflow, you can download an aligned 3MF.

Base and text already share the correct position. In the slicer, assign different filaments or colors to the two parts.

Before printing, verify that the slicer treats both parts as components of the same object.

Separate base and text STL files

If you prefer individual files, base and label can also be downloaded separately.

Import both as parts of one object in the slicer so their alignment remains correct.

You can then assign different filaments or colors.

Check geometry before downloading

The generator can verify whether the selected dimensions remain within the intended limits.

Important values such as outer dimensions, hole pattern and label configuration are summarized before export.

This makes it easy to confirm that preset, dimensions and personalization match the intended version.

How to measure an existing fastener strip

When replacing an existing strip, start by measuring total length and width.

Then measure hole diameter and center-to-center spacing. With several holes, use the hole centers as the reference rather than measuring from outer edges.

Material thickness matters as well. A strip that is too thick may interfere with the folder mechanism, while a very thin strip may become unnecessarily flexible depending on the material.

  • measure the total strip length
  • measure width separately
  • check material thickness
  • measure hole diameter
  • measure hole spacing center to center
  • verify all relevant distances on a 4-hole layout
  • consider corner radius when space is tight
  • make one test print first

Examples of custom fastener strips

01

Replacement 2-hole strip

Start from the 2-hole preset and adjust length, thickness or hole diameter if the existing filing system differs.

02

4-hole folder strip

Use the 4-hole standard as a starting point and customize the geometry for folders with different dimensions.

03

Personalized school strip

Add a name or school subject as raised text and print the label in a second color.

04

Archive strip

Use short labels such as year, document type or project number to identify folders permanently.

05

Color-coded filing system

Use different base or text colors for categories and combine color with labeling for faster recognition.

06

Custom replacement for an old binder

Measure the original strip or mounting points and generate a new part when a matching replacement is no longer available.

07

Multiple personalized variants for personal use

For your own private projects, you can create personalized physical fastener strips in different dimensions and labels.

How the Fastener Strip Generator works

  1. Choose simple or advanced mode.
  2. Select a 2-hole or 4-hole preset or use custom dimensions.
  3. Set length, width and thickness.
  4. Check hole count, diameter and spacing.
  5. Adjust corner radius.
  6. Add optional custom text.
  7. Choose a font.
  8. Set text height.
  9. Choose raised or engraved text.
  10. Check the model in the 3D preview.
  11. Review geometry checks.
  12. Export an aligned 3MF or separate STL files.
  13. Prepare the strip flat in your slicer.
  14. For two-color printing, assign different filaments to base and text.
Create a fastener strip

No CAD required

A simple strip can be modeled quickly in CAD, but exact hole spacing, multiple standards, rounded ends and two-color personalized text make the task significantly more involved.

Vuolti handles those repeatable steps. Enter the dimensions and label you need and the generator creates the geometry.

For small replacement parts, this can be much faster than redesigning the model from scratch every time.

Why not just scale an existing fastener-strip STL?

Scaling a finished STL changes every dimension together.

If you only need a longer strip, scaling also changes width, hole diameter and hole spacing.

That is usually undesirable for a functional replacement part.

A parametric generator lets you change only the values that actually need adjustment.

3D printing tips for fastener strips

Fastener strips are flat parts and can usually be printed directly on the print bed.

For very thin versions, first-layer quality and correctly configured line width become particularly important.

  • print the strip flat on the build plate
  • calibrate the first layer carefully
  • verify that very thin settings still produce enough extrusion lines
  • test hole diameter before batch production
  • avoid overly fine text
  • check color separation on raised lettering
  • import base and text STL as parts of one object
  • make one test print before producing larger quantities

Which filament should you use?

Many common filaments can work for normal office and filing use.

The main considerations are desired flexibility, temperature resistance and the ability to print thin sections reliably.

PLA is easy to print and may be sufficient for many indoor uses. PETG can be an alternative where more flexibility is desirable.

For two-color labels, choose filament colors with clear visual separation.

Why use Vuolti instead of downloading a ready-made STL?

A fastener strip needs more than the right outer size. Hole count, hole diameter and hole spacing all need to match the existing filing system.

A ready-made STL can therefore look almost correct and still be unusable.

Vuolti starts from your dimensions. Choose the appropriate standard or enter custom values and generate the exact variant you need.

Integrated labeling turns a simple replacement part into a personalized organization tool.

Free for private use today

Everything you generate with Vuolti today is free to use for private, non-commercial projects.

A solution for commercial use is planned but not available yet. Until then, the current free-use terms apply.

Digital model files may not be published or redistributed.

The current terms of use apply. A commercial-use licence is planned but not yet available.

Free to use · Disclaimer

Frequently asked questions

Can I create a 2-hole fastener strip?

Yes. A standard 2-hole preset is available as a starting point.

What dimensions does the 2-hole standard preset use?

It starts with a 95 × 12 mm strip and 80 mm center-to-center hole spacing.

Can I create a 4-hole strip?

Yes. A standard 4-hole preset is also available.

Can I change the standard dimensions?

Yes. Length, width, thickness, hole geometry and other parameters can be customized.

Are the holes round?

Yes. The mounting openings are generated as round holes.

Can I adjust hole diameter?

Yes. Hole diameter can be matched to the filing system.

Can I add a name to the strip?

Yes. You can add your own single-line text.

Can I change the font?

Yes. An available font can be selected.

Can I change text size or height?

Yes. Text height can be adjusted.

Can the text be raised or engraved?

Yes. Both styles are available for personalization.

Can I print base and text in two colors?

Yes. Base and label are generated as separate aligned parts and can be assigned different filaments.

Can I download a 3MF?

Yes. An aligned 3MF is available for a convenient two-color workflow.

Are separate STL files available?

Yes. Base and text can be downloaded separately as STL files.

Do I need CAD experience?

No. The geometry is generated directly from your settings.

Your folder. Your hole pattern. Your label.

Choose a 2-hole or 4-hole standard or customize the dimensions and label to create your own 3D printable fastener strip.

Create your fastener strip