Tube Storage for Magnets (F360 Parametric)

Tube storage for magnets of various diameters.

Two lengths provided - 6.5cm tall tubes with capacity to hold 4.5cm of magnets, and 13cm tall tubes with capacity to hold 11cm of magnets. I specifically chose these two sizes because they fit into my storage box. But you can also edit the attached model in Fusion 360 and create your own sizes and lengths and wall thicknesses. UPDATE 28.10.2026: Tube length is parametric, by default it is 12cm + 1cm cap. Fusion 360 F3D file is included so you may futher modify the model to fit your needs.

Each cap has a slot on its top to fit one magnet. You can use it to separate magnets from each other. This is usefull especially for the slim magnets, they are difficult to separate just by hand - just insert a stack of magnets into the slot and then slide the stack to a side, leaving one magnet in the slot.

A pin hole is located at the bottom of each tube in case something gets stuck inside.

All sizes and tolerances tested with Prusament PETG and Polylite PETG.

Use at least 3 perimeters and increase infill, especially for the caps.

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UPDATE 28.10.2026

I revised the model and made several changes (v2):

• To consume less material the tube walls are not as thick anymore.

• Tube length is now parametric, default is 120mm. This way you need to adjust the length only once and it will be applied to all tube variants.

• Improved threads modelling, the caps should fit in better now.

• Added more dimensions; full list of magnet diameters supported: 5, 6, 8, 10, 12, 14, 16mm.

If you have larger amount of small magnets, then you can fit them into the larger tube in 3 stacks (5mm magnets will fit into the 10mm tube, 6mm magnets will fit into the 12mm tube, and 8mm magnets will fit into the 16mm tube). This is not a new feature but perhaps worth mentioning.

I decided to use different filament color for each magnet diameter to easily differentiate them.