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Cave markers.
From design to print.

Choose a size, give your name room and understand what goes into the print. Practical guides based on the markers we make here.

Choose the shape and size

Marker types, dimensions and the parts that meet the line.

A round cookie, triangular cave arrow and rectangular REM, shown side by side.

MARKER TYPES · 2 min

Cave arrows, cookies and REMs: the differences

What each shape means, and where our Classic, Faceted and Playful designs fit.

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Actual REM geometry with dimension guides showing its tangent 3 mm slot and 6 mm line hole.

DESIGN DIMENSIONS · 2 min

Marker holes, slots and line fit

Why we keep the holes and slots full size when we make a smaller marker.

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Our actual 45, 50 and 55 mm cookie presets shown at the same scale.

SIZE OPTIONS · 2 min

Choosing a cave marker size

45 and 50 mm cookies, compact arrows and shorter REMs: compare the actual options in our designer.

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Personalise it. Print it.

Lettering, colour, materials and the two print finishes.

A 3D-printer nozzle laying closely packed filament lines onto a solid flat part.

PRINTING BASICS · 1 min

Printing your cave markers

The essential print setting: 100% infill for strong, solid markers.

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Two filament spools with matte and slightly glossy printed material samples.

MATERIALS · 3 min

Choosing material for your markers

PLA matte and PETG, plus the pros and cons of ABS and fibre-reinforced filaments.

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Bold NAME and LM lettering centred inside separate padded layout guides.

LETTERING · 2 min

Names and initials that fit your marker

How the padded text areas work, why shorter names stay larger, and what changes on playful designs.

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Two close-up polymer samples comparing flush black lettering with raised black lettering.

PRINT FINISHES · 2 min

Flush or raised marker text?

See where the colour sits in a 3 mm marker, and how the finish changes its feel and thickness.

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Four printed colour swatches and bold lettering showing contrast between light and dark colours.

MULTICOLOUR PRINTING · 2 min

Choosing colours for a printed marker

Clear lettering, label contrast and two-, three- or four-colour designs, using examples from our collection.

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Your finished markers

Holder fit, wear and what we have observed in our own prints.

A soft cleaning brush, a drying cloth and water droplets on a dark worktop.

MARKER CARE · 2 min

Keeping printed markers in good shape

Slot edges, loose print strings and shallow colour details: the areas worth checking.

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An illustration using our actual arrow and REM models, resting on a water tank floor.

OUR PRINTS · 1 min

Do PLA and PETG cave markers float?

Our printed PLA and PETG markers sank. A short note on those tests and solid infill.

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Eight of our cookie models stacked beside a REM, showing how marker thickness adds up.

HOLDER FIT · 2 min

Will your markers fit your holder?

Compare the outline, stack thickness and attachment points before choosing a size.

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Dimensions and examples come from our marker collection. Material comparisons and marker terminology link to their sources in the articles.

Back to designing your markers