Parametric Tube Container System (Tube + Cap + Extension)

This fully parametric Fusion 360 model allows you to generate a tube container of any dimensions.
The diameter is limited only by your printer’s build plate, and the total length can be made as long as you want using detachable extensions connected by threaded joints.

The system includes three components:

• Tube
• Cap
• TubeExtension — stackable element for increasing total usable height

All components are connected using a customizable thread, and almost every dimension can be adjusted through parameters.

Perfect for storing mouse pads, soldering mats, paintbrushes, cables, craft supplies, small electronics, 3D-printed parts, tools, hardware, stationery, candy, food ingredients, camping items, puzzle pieces, and more.

⚙ Printing Requirements

• Important: Vase Mode must be enabled.
• Important: The wall thickness in the model must match the wall thickness in your slicer.
  Example: if the model uses 1.2 mm wall thickness but slicer uses 0.6 mm, the threads will not fit.
• Recommended layer height: 0.3 mm
• Recommended base height:
  BaseHeight = LayerHeight × NumberOfBottomSolidLayers
  (This is the height after which your slicer switches from solid layers to spiral-vase mode.)
• For the TubeExtension, set Bottom Solid Layers = 0 so it prints as an open tube.

📏 Main Parameters

• InnerDiameter
  Internal tube diameter. Determines overall size.
• TubeHeight
  Main tube height. Recommended minimum: 20 mm (lower values make threading difficult).
  Actual minimum depends on ThreadDistance and ThreadRevolutions.
• CapHeight
  Cap height. Recommended minimum: 5 mm.
• TubeExtensionHeight
  Height of the extension module.
  Adding an Extension increases the final internal height by exactly this amount.
• WallThickness
  Single-wall perimeter thickness used in your slicer.
  Recommended: 1.2 mm, but depends on your printer.
  ⚠ Critical for proper thread fit.
• BaseHeight
  Height of the non-vase bottom.
  Usually LayerHeight × BottomSolidLayers.
• ThreadRevolutions
  Number of turns in the thread.
  Small diameters (< 50 mm): 2+ turns recommended
  Large diameters: can be reduced.
  Fractional values allowed (e.g. 1.5).

🔧 Additional Parametersё

• ThreadDistance
  Clearance distance from the top edge to the beginning of the thread.
  Recommended: ≥ 3 mm.
• InnerHeight
  Calculated internal usable height (Tube + Cap), excluding Extension height.
• ThreadSize
  How far the thread protrudes.
  Recommended: 1 mm
  Larger values → overhangs; smaller → weak threads.
• HeightCompensation
  Extra height added to Tube, Cap, and Extension to correct real-world print inaccuracies.
  Useful if your printer produces slightly shorter parts in Z.
• Tolerance
  Fit adjustment between Cap and Tube.
  Recommended: 0 mm
  Increase by 0.1–0.3 mm if the cap is too tight.
  Use negative values (-0.1 to -0.3 mm) if the cap is too loose.

✔ Notes

With the Extension module, you can create extremely long containers regardless of your printer’s Z limit.
Example:
Need a 500 mm tube but your printer can only print 250 mm?
Print:

• Tube 200 mm
• Extension 200 mm
• Cap 100 mm

And assemble it using threaded connections.