Rat Rig V-Core 4.1 — official product imageFFFManufacturer image: Rat Rig

Rat Rig V-Core 4.1

FFFConsumerCatalog listing sourced

Open-source CoreXY printer kit with standard, hybrid and IDEX upgrade configurations.

Official product

Source reviews: 2026-10-16.
Specifications are reported claims, not independent test results.

The machine at a glance

The details that matter.

Published specifications for this model. Follow a field's source for its configuration and measurement conditions; older fields refer to the profile's reference list.

Core specifications for Rat Rig V-Core 4.1
Introduction yearNot verified
Model familyV-Core 4.1
ProcessFFF
Build envelope (X × Y × Z)Not verified
Nominal box volumeNot verified
EnclosureNot verified
Maximum nozzle temperature350 °C

Manufacturer configuration rating; self-sourced heaters, sensors and hotends may differ.

Materials cited in this profileThermoplastic filament
Manufacturer listing statusOfficial documentation available
Regional stock and priceCheck the manufacturer
Market groupingConsumer · editorial grouping

Technical specifications

Additional technical specifications for V-Core 4.1
Build Size Options300³, 400³ or 500³ mm
Motion ArchitectureCoreXY; Hybrid and IDEX upgrades available
Frame Material30-series aluminum extrusion
X GantrySteel
ToolheadFull-metal skeleton
Bed Temperature (°C)120
Nozzle Diameter Options (mm)0.4, 0.6
Bed ProbeBeacon Contact
Firmware PlatformRatOS 2.1
Kit Weight Options (kg)35, 45, 55

300, 400 and 500 mm kit values respectively, not a single machine weight.

Electronics ConfigurationOptional electronics kit or self-sourced
Enclosure PanelsNot included; DXF cutting files provided
Model notes · 01

Choose size and configuration

V-Core 4.1 is a self-assembly platform offered in three nominal sizes. Electronics, Hybrid drive, IDEX and filtration are selectable configurations.

Model notes · 02

Mode-dependent space

IDEX copy and mirror modes have smaller per-tool working regions. The listed maximum cube should not be treated as the simultaneous two-part envelope. Enclosure panels are not included in the mechanical kit.

A place in the lineage

Explore the model family.

Introduction year has not been established from the cited evidence.

Family: V-Core 4.1 · Listing status only

Explore Rat Rig through the generations

Read this with the specifications

Kit and open-hardware ecosystem; recorded as a project rather than counted as an assembled-machine OEM. Exact build envelope depends on size and configuration.

A larger nominal envelope does not establish better print quality. Fit depends on the configuration, usable area, supports, and orientation.

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