16mm Test Tube Holder — 8-Tube 2×4 Rack
A rack that holds 8 test tubes upright and stable in a 2×4 grid, sized for 16mm-diameter tubes, for lab/hobby use at a specific tube size and count not matched by a generic rack.
✓ Full requirement coverage✓ Digitally validated
Key dimensions
| X | 84 mm |
| Y | 42 mm |
| Z | 28 mm |
About this model
Published customizable test-tube holder designs are explicitly built around specific stated diameters (e.g. one modeled "currently ... for 16mm diameter test tubes, with plans for other sizes"), evidencing real, recurring demand for holders tied to one exact tube diameter at a time rather than a single universal rack.
Fit notes
- 1mm clearance per pocket for a neat (not press) fit around each 16mm tube
- 25mm pocket depth -- a stabilizing pocket, not full tube length
- 2×4 layout (8 tubes), a specific count not tied to a published preset
Printing & use notes
No print settings (layer height, infill, supports) are specified for this model — use standard settings for your printer and material. See the validation section below for what has and hasn't been checked.
Validation
Requirement coverage
Full — this model covers the stated requirement completely.
LOW RISK Low risk — simple geometry, loose clearances, not load-bearing.
Digitally validated
- ✓ Geometry valid
- ✓ Matches stated dimensions/spec
- ✓ Manifold (watertight)
- ✓ Slicer compatible
- External manufacturing preflight: not checked
Physical fit and print performance
Physical fit and material/printer-specific performance are not independently guaranteed unless explicitly stated. Physical validation status for this object: not yet physically tested.
MyMakerPilot does not guarantee shrinkage, warping, layer adhesion, strength, real-world load bearing, printer-specific tolerance, or first-print functional usability. Physical printing is optional calibration/sampling, not a publishing requirement.
Technical details
Internal provenance and file references, for anyone who wants the full picture.
- Object ID
- test-tube-holder-16mm
- Category
- holders
- Risk classification
- low
- External preflight
- unknown
- Physical validation
- unknown
- Production cost
- unknown
- Human review time
- unknown
- STL file
- /objects/test-tube-holder-16mm/model.stl
- STEP file
- /objects/test-tube-holder-16mm/model.step
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