Insulin Pen Case, Magnetic and Mechanical

Elegant, robust and designed for everyday use — this 3D-printable NovoPen Protector houses NovoPen Echo, NovoPen 6 and NovoPen 5 insulin pens and adds practical storage for four spare needles. Two cap variants are provided: a sleek magnetic cap for quick access, and a secure mechanical cap for extra retention. The internal shell is shaped with a hollow thermal buffer between the pen and outer wall to reduce heat transfer and help protect contents during brief temperature exposure. All parts snap or screw together cleanly for tool-free assembly; magnets and small hardware points are clearly marked in the files.

Key features

• Compatible with NovoPen Echo, NovoPen 6 and NovoPen 5.
• Two cap styles: magnetic (fast, single-hand access) and mechanical (positive lock for transport).
• Built-in storage compartment for 4 spare needles.
• Hollowed inner cavity acting as a thermal buffer.
• Reinforced walls and ribs for long-term durability.
• Strongly recommend to use AMS.

Safety & license

• This model is intended as a storage/transport solution only — it is not a medical device. Verify fit and functionality before regular use. Do not rely on this case for sterilization or clinical safety.

Note (mechanical cap): insert a short 1.75 mm plastic filament rod as a hinge; trim to fit.

Included files

• .step / .3mf sets for: magnetic cap, mechanical cap, needle insert, outer shell, tolerance variants.

Important info:

If you want to print “mechanic” version with advanced support settings, don't use published profile, go to “Download files” and download “Insulin pen mechanic.3mf” file. There is bottom part with different material support, and top with same. It reduce print artefacts