Parametric Gridfinity Tube Tray

A fully parametric Gridfinity-compatible tube tray designed to organize a wide variety of cylindrical items. Whether you're working in a laboratory, electronics workshop, or hobby space, this tray can be customized to fit your needs before printing.

The model allows you to adjust the tray dimensions, tube size, spacing, and height, making it easy to create organizers for everything from centrifuge tubes to pipette tips and countless other small parts.

Features

Fully parametric design
Gridfinity compatible
Adjustable tray size in Gridfinity units
Customizable tube diameter and spacing
Adjustable tray height
Optional stacking lip
No CAD experience required—simply edit the parameters in MakerWorld

Parameters

Parameter	Description
Grid Units X	Width of the tray in standard Gridfinity (42 mm) grid units.
Grid Units Y	Length of the tray in standard Gridfinity (42 mm) grid units.
Tube Height (Tip to Shoulder)	Controls the depth of each pocket. Increase this value for longer tubes or deeper support.
Tube Length (Shoulder to Cap)	Used to maintain proper clearance when the optional stacking lip is enabled so stacked trays remain compatible.
Tube Diameter	Diameter of the tube body. No clearance is added automatically, so it is recommended to make this value slightly larger than the actual tube diameter to reduce insertion friction.
Tube Cap Diameter	Diameter of the tube cap. This determines the minimum spacing between pockets so caps do not interfere with one another.
Stacking Lip Bool	Enables or disables the Gridfinity stacking lip. Use 1 to enable the lip or 0 to disable it.

Great For

Centrifuge tubes (microcentrifuge, conical, PCR, and more)
Pipette tip holders
SMD resistor and capacitor tubes
Drill bits and end mills
Precision screwdrivers and hex bits
Small hardware (screws, nuts, spacers)
Paint brushes, markers, and pens
Hobby tools and crafting supplies
Any cylindrical item that fits your chosen dimensions

Because every dimension is parameter-driven, a single model can be adapted to organize virtually any collection of tubes or small cylindrical objects.

Printing

Prints without supports.
Works well in PLA, PETG, or ABS.
A 0.20 mm layer height is recommended for the best balance of quality and speed.

If you create a useful configuration for a particular tube or tool, consider sharing it with the community so others can benefit from it as well.

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