OpenMini v1

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OpenMini v1 · Historical baseline · Original release date unrecorded

This page records the preserved all-printed OpenMini v1 design from which the later 3xD development evolved. It provides a starting point for the release history, based on the saved original project files.

A retrospective record of OpenMini v1. The original publication date and production approval are not established by the preserved files.

The OpenMini v1 configuration

The preserved selection comes from OPENMINI-V1.3mf and TPU.3mf. Together they contain 15 distinct parts and 49 placed instances across five print plates. Those placements include spares and are not a bill of materials for one assembled car.

  • The long printed chassis selected in the saved project: Chassis-Long.stl.
  • The original pod components: POD-HIGHER.stl, Pod-Base-v2.stl, the pivot post and pod pivot.
  • The selected front arms and hubs: ARM-SCHUMACHER-KP.stl and HUB-LOWER.stl.
  • The servo lid, band, screw holder, rear body post, ride adjuster and spring cup.
  • The bumper and motor spacer saved in the separate TPU project.

The main project has four saved plates labelled “MAIN 0.2”, “SPARE PARTS - 0.2”, “MAIN 0.08” and “SPARE PARTS 0.08”. The separate TPU project supplies the fifth plate. These are historical slicer layouts; their positions are not mechanical assembly coordinates.

How OpenMini v1 was identified

The selection follows the parts actually embedded in the saved projects. Other historical STL files, including alternatives named “FINAL”, are retained as reference material rather than substituted for the selected parts.

The later OpenSCAD conversion preserves the original faceted meshes and records their source files, dimensions and placements. It does not recover the original Fusion sketches, constraints or complete design history. The preserved original project files match the source hashes recorded in that conversion manifest.

Known limitations

The conversion documentation records mesh-edge issues in the original arm and bumper, with additional issues exposed in STL representations of the pod pivot and rear body post. Successful export does not establish that every original mesh is ready for printing or modification.

Conversion checks assess how faithfully the geometry was preserved. They do not establish assembled fit, steering or suspension clearance, strength, running durability or race-rule compliance. Original slicer settings remain in the source projects; they are not carried by an STL file.

Relationship to the later releases

The all-printed OpenMini v1 configuration predates the later development of separate 3 mm GRP and 4 mm printed-chassis setups. It should not be treated as interchangeable with those later part selections.

3xD 1.0-rc1 is the first entry in the formal version register. Its notes explain how the later 3xD chassis, pod, suspension, servo and bumper arrangements developed from OpenMini v1, followed by the wheelbase, front-arm, servo-saver spacer and M3 clearance updates captured in its changed-part packs.

3xD 1.0-rc2 subsequently consolidates the complete current inventories for both chassis setups. For the current part selection and outstanding fit checks, follow those release notes rather than this historical source configuration.