Rat Rig Unveils Speed‑Boosting V‑Core 3.2H Upgrade
Making good on an earlier promise, Rat Rig is bringing its latest printer's kinematic system to the V-Core 3.
The Rat Rig V-Core 3, a CoreXY 3D printer that received its last revision in 2022, is getting a €219 (~$250) upgrade kit that adds the “HybridXY” kinematics from the Portugal-based manufacturer’s most recent model. And, in typical Rat Rig fashion, the upgrade is entirely open-source.
When RatRig revealed the V-Core 4 last year, it promised to bring some of the “most important features” to the V-Core 3. This upgrade kit appears to be making good on that promise.
HybridXY, as Rat Rig calls it (and ostensibly what the “H” in the new V-Core 3.2H revision name), adds two stepper motors and belts to the printer’s gantry that are designed to give a “boost” to the Y-axis motion. This is something Rat Rig founder Sonat Duyar calls a bottleneck in the typical CoreXY design in an upgrade announcement video.
Aside from the extra Y-axis power, the upgrade adds front belt tensioners to make system maintenance a little easier. Altogether a tidy update to support older users and help bring a superseded machine a little closer to current specs.
Interested users can pick up a V-Core 3.2H upgrade kit from Rat Rig’s online shop for €219, or source their own by following the BOM on its product page, and a build guide where you can also find STLs for the printed parts.
To install the upgrade, you’ll need a V-Core 3.1 with an Enclosure 2.0 upgrade. Printed parts aren’t included in the base price, but are available for an additional ~€50 if you can’t spare the extra downtime.
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