HARLAN'S MAGNETIC SAND PET - REVIEW COPY - 10-18-2026

MAIN PROJECT: magnetic-sand-habitat-x2d.3mf
Plate 1: Habitat and center cone. Plate 2: Magnet base.
Saved profile: X2D, 0.4 mm nozzle, PLA, 0.16 mm layers,
2 wall loops, 15% infill, supports off. Select your own machine,
filament and plate. Inspect warnings and preview every layer.

ACCESSORIES: magnetic-sand-accessories-x1c.3mf
Plate 1: Optional cover and clips. Plate 2: Four extension bars.
Saved profile: X1 Carbon, 0.4 mm nozzle, PLA, 0.16 mm layers,
2 wall loops, 15% infill, automatic tree supports on.

ORIGINAL STLS: magnetic-sand-original-stls.zip
Original named exports retained unchanged. Includes main assembly,
base variants, separate tunnel, cover/clips and extension bars.
These are source versions, not six mandatory parts. Do not print every
alternative or scale one part independently of the others.

3MF copies have named plates and no old sliced toolpaths.
They are editable projects; no printer is started by opening them.
Bambu Studio reports 12 non-manifold edges in the main habitat. The local
main-project slice completed, but a clean mesh and physical fit have not been
verified. Inspect/repair warnings before printing.
Always select the correct printer and slice again. No universal print
time, material use, fit, safety certification or physical test is claimed.

The recess in the base does not securely enclose a loose magnet.
An adult must select and safely contain any magnet before use.
The family confirms two 12 mm-diameter x 3 mm-thick disc magnets.
Public matching purchased listing: https://www.amazon.com/dp/B0FGD36VTF
The saved main base recess measures about 12.005 mm across and 2.0 mm
deep in the digital model. A 3 mm magnet nominally protrudes 1 mm.
Printed clearance, the second finished-build position, secure retention
and cover fit remain to be verified. A recess is not a secure enclosure.
Use a closed clear container and a large handled educational magnet
for the first experiment. Keep grains and magnets away from mouths,
eyes, younger children and pets. Do not crush rocks or grind powders.

Model source: Harlan's existing Stunning Tumelo-Fulffy exports and
Bambu Studio projects. Originals are preserved separately.