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Bolt Action Pen (Kilometrico Conversion)

IP Report

Print Profile(1)

All
P1S
X1E
X1
A1 mini
H2C
H2S
H2D Pro
P2S
X1 Carbon
A1
P1P
H2D
X2D
A2L

0.08mm layer, 2 walls, 60% infill
0.08mm layer, 2 walls, 60% infill
Designer
2.5 h
1 plate
1.0(1)

Open in Bambu Studio
Boost
8
11
3
0
11
7
Released 

Description

A precision-inspired bolt-action pen designed to transform a standard Kilometrico cartridge into a robust, everyday writing instrument. This pen replaces the thin, flimsy Kilometrico body with a solid, well-balanced housing that feels confident and durable in hand that enhances the smooth writing Kilometrico cartridge.
 

The bolt action mechanism offers controlled extension and retraction with a satisfying, deliberate action, while the knurled grip section provides excellent traction and control during extended writing.


Built for daily use, this pen combines comfort, grip, and mechanical precision in a clean, purposeful form, transforming a basic cartridge into something far more substantial.
 

Highlights:

  • Uses standard Kilometrico cartridges
  • Replaces the thin, flimsy original Kilometrico body
  • Smooth, reliable bolt-action mechanism
  • Knurled grip for enhanced control and comfort
  • Balanced weight for everyday writing

     

Materials:
~5mm long M3 Screw
~30mm x 3mm spring  (I sourced mine from Bic 4 colour pens)

Assembly Instructions:
1. Cut Kilometrico cartridge to 130mm.
2. Press cartridge into the top housing assembly.
3. Slide spring onto the pen cartridge.
4. Insert whole assembly into the body
5. Screw the screw into the hole on the housing.
6. (OPTIONAL) If needed trim the cartridge to adjust how far the pen extends, make sure it is pushed in fully before making any alterations
 

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License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.