Display Model: Complete Musculature of a microscopic Sandworm

This is a printable display model of the cLSM-scanned musculature of the coastal Gastrotrich Xenotrichula intermedia.
5h 3m
1× print file
0.30 mm
0.60 mm
73.00 g
0
2
0
15
updated October 29, 2025

Description

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This is a display model of the musculature system of Xenotrichula intermedia Remane 1932, a hairyback sandworm that lives in the space between grains of coastal sands. Scanning the musculature using Confocal Laser Scanning Miscrocopy (cLSM), and special dyes that bind to muscle-specific protein (f-Actin), we can visualise the entire musculature and discern different species that otherwise look alike.

This is a model generated from a raw cLSM scan, using slight gaussian smoothing of the image stack, binary segmentation using Li's method, and marching cubes meshing.

The model is best printed as arranged in the .3mf file, with supports being required. It is designed to be mounted on a 13mm (⌀ 4.6 mm) nail. A model stand can be obtained from this model.

Taxon Overview [1]

SpeciesXenotrichula intermedia Remane 1932
PhylumGastrotricha
Sizeca. 0.2 - 0.3 mm
DietBacteria, algae
HabitatLittoral
OccurencePan-European

Print Settings

FilamentFormFutura ReForm white
PrinterPrusa Mini +
Nozzle Size0.6mm
SlicerPrusaslicer 2.9.2
Preset0.3mm QUALITY
Infill0%
Margins2
SupportsOrganic, automatically placed and manually optimized

Sources

[1] Münter, L. & Kieneke, A. 2017: Novel myo-anatomical insights to the Xenotrichula intermedia species complex (Gastrotricha: Paucitubulatina): Implications for a pan-European species and reconsideration of muscle homology among Paucitubulatina DOI: 10.2988/17-00013.

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The author marked this model as their own original creation.

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