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.
Dimensions
| X | 84 mm |
| Y | 42 mm |
| Z | 28 mm |
Assumptions
- 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
Validation status
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.