Features

• Functional sliding magnetic core

• Removable digit tiles for updating totals

• Hidden internal storage compartment for extra numbers

• Customizable name plate

• Designed for multi-material printing

• Engineered tolerances tested on Creality K2 Pro

This design combines decorative presentation with functional mechanical design for a polished, gift-ready result.

Hardware Required

Magnets:

6mm x 2mm Neodymium Magnets

(Quantity required: x9)

Washers:

M5 Carbon Steel Flat Washers

10–11mm outer diameter

(Quantity required: x24)

Note: Hardware links are examples. Equivalent components may be used.

Print Recommendations

Recommended Materials:

PLA or PETG

Printer Requirements:

Multi-material capability recommended for clean text and color separation.

Book Cover:

• Fuzzy Skin: All Walls

• Fuzzy Skin Point Distance: 0.5

• Fuzzy Skin Thickness: 0.1

If printing without fuzzy skin, slight scaling adjustments may be required depending on printer calibration.

Supports:

• Tree supports required for cover and core

• Print cover standing upright

• Print core laying flat

• Number tiles require no supports if printer is properly tuned

The counter requires minimal assembly.

Hardware needed:

Magnets: VSKIZ 320Pcs Small Neodymium... https://www.amazon.com/dp/B0CZ71S57Y?ref=ppx_pop_mob_ap_share

Washers: M5 Carbon Steel Flat Washer,... https://www.amazon.com/dp/B09MMHVDYW?ref=ppx_pop_mob_ap_share

Magnetic Book Counter – Functional Reading Tracker STL File