Expandable tape rack for Multiboard. A curved cradle holds rolls from 30 to 120 mm, with snap-together 1–5 unit modules

Welcome to a new functional design by TonnoSupremo. Tape rolls roll around, fall off hooks and never fit the same holder. This modular rack solves the problem with a curved cradle that keeps every roll firmly in place, whatever its diameter, and it grows with your collection: add as many modules as you need, whenever you need them.

Designed for rolls up to 110 mm in diameter and tested from 30 mm to 110 mm (masking, electrical, Kapton, double-sided, packing tape and more). Rolls up to 120 mm are still held securely.

Curved Cradle Profile: The shape of the cradle keeps each roll steady and stops it from moving back and forth, with no need for dividers or hooks.

Fully Modular: Start and end pieces with a small retaining lip keep the rolls from falling off, and you can add any number of middle modules in between.

5 Module Sizes: Modules of 1, 2, 3, 4 and 5 units. One unit equals 25 mm, the Multiboard grid pitch, so every module is a multiple of 25 mm.

Tool-Free Clips: Modules snap together with 3 printable clips per joint, so you can expand, shorten or rearrange the rack at any time without tools.

Made for Multiboard: Designed for the standard 1x1 mounting points. Fixing hardware is not included in the files, so you can use any compatible fixing point from the Multiboard library.

Print Friendly: Every part is oriented to lie on its longest side, so NO supports are required.

Multiboard fixing points: I used the Moderate Weight-Bearing Snap and the Locking Bolt (Folded) but any 1x1 fixing point from the Multiboard library works.

Snaps: The load limit of the rack is set by the Multiboard snaps, not by the printed parts. My recommendation is 1 snap on the start piece, 1 on the end piece and 1 on every 4 or 5 unit module. For smaller modules, 1 snap every 4 units usually works well. For heavy rolls or long racks, add more snaps.

Clips: 3 clips per joint, which means 3 x (number of pieces - 1). Example: 2 end pieces + 3 modules = 5 pieces = 4 joints = 12 clips. Print a few spares.

Rack length = number of units x 25 mm. Add up the widths of the rolls you want to store, leave a little spare room and choose the modules to match.

Cleanup: Remove any blobs, stringing or elephant's foot from the printed parts, especially around the clip slots.

Joining: Connect the pieces in order: start piece, middle modules, end piece. Use 3 clips for every joint.

Snaps: Fit the Multiboard snaps on the back of the rack, following the recommendations above.

Mounting: Mount the rack on your Multiboard.

Loading: Place the rolls in the cradle. Put the heaviest rolls near the snaps for the best support

This model is designed for easy, hassle-free printing.

Material: PLA

Supports: NONE required

Layer Height: 0.20 mm

Perimeters (Walls): 3

Infill: 15% - 20%

Orientation: Lying on the longest side, as in the pictures

All files are already oriented for printing, in both STL and STEP format.

1x 01_End_Cap_Start

1x 02_End_Cap_End

03_Module_1U, 04_Module_2U, 05_Module_3U, 06_Module_4U, 07_Module_5U (print the sizes and quantities you need)

08_Joint_Clip_x3_per_joint (⚠ Note: the file contains a single clip, remember to duplicate it 3 times for every joint before printing!)

Dimensions: unit length 25 mm, designed for rolls up to 110 mm (holds up to 125 mm).

Your feedback matters! Do you have suggestions to improve this project, or would you like a version for a different roll size or another mounting system? Leave a comment or send me a private message! If you print this, don't forget to upload a Make and show off your tape collection!

Not affiliated with or endorsed by Multiboard. Multiboard is a trademark of its respective owners.