Get it now: [Download SLICC] — compatible racks and cartridges for your host platform.
For developers and integrators, see the SLICC Specification.

What is SLICC?

SLICC is an open framework that extends existing storage systems through 3D-printable cartridges that are:
Slotted, Lidded, Interlocking, Compact (high-granularity), and Color-Coded.

Designed for anyone who needs compact, spill-proof, easily labeled, color-coded, and transport-safe storage for small parts.

SLICC works as a two-part system:

• Cartridges: Slotted, lidded, labeled, and color-coded modular containers.
• Racks: Host adapters that let cartridges fit precisely into your chosen host platform.

Note:

Cartridges and Racks are host platform-specific.
Pick your Host Platform (e.g., Festool Organizer, Gridfinity). Some platforms support multiple Height Classes (e.g., H6, H9).
Within each class, select the Family, which defines the width geometry, such as W1, W1.5, or W2.

Currently, SLICC integrates with Festool Organizers and Gridfinity, but the concept is adaptable to almost any modular storage solution.

Naming & Terminology

• Host Platform: the original storage system that SLICC extends
  

→ e.g., Gridfinity, Festool Organizer

• Class: identifies the vertical (height) grouping within a platform
  

→ e.g., H6, H9

• Family: defines the width-based SLICC geometry compatible with a specific host platform and class
  

→ e.g., W1, W1.5, W2 families for Gridfinity H9

Racks of different Families (width) within the same platform and class fit the same host platform,

but their cartridges are not cross-compatible.

For the current list of available families, see [[../families|SLICC Families]]

SLICC Principles

Each letter in SLICC represents a core design principle - the foundation of the framework:

Slotted

• Cartridges interlock with the rack, staying secure - even if neighboring cartridges are removed.
• Rack geometry keeps lids closed for passive security.

Lidded

• All cartridges come with lids.
• Standard cartridges:
  

Sliding lid with integrated end-click stop - no lost lids.

• SMD cartridges:
  

Small, lidded compartments (with hinges) secured by a larger locking lid with snap closures.

Identifiable

• Every cartridge has a dedicated label zone sized for standard labels:
  

2U: 6mm, 3U: 9mm, 4U: 12mm, etc.

• Easy to scan and organize - find the right part at a glance.

Compact

• Vertical layout with fine-grained slot spacing gives you just the right box size - no wasted space.
• Mix subdivided cartridges (e.g., 12-compartment SMD) and larger ones for bigger parts - all fit the same rack.
• Rack width matches parent system’s grid units - perfect integration, no dead space.

Color-Coded

• Filament channel for snap-in color coding
• Change colors anytime, no need to reprint.
• Or obviously print in multiple colors.

Why SLICC?

I built SLICC because no other system truly met my needs:

• Other options (like Gridfinity) are great, but small parts still spill, and outside containers require massive, time consuming prints, if they fit on the bed at all.
• Off-the-shelf storage lacked the modularity, labeling, and flexibility I needed.
• Festool Organizers (especially the SYS3-SORT/3) are almost perfect - sturdy, transparent, interlockable, and with drawers - It just wasn't SLICC enough ;)