3.2H Upgrade Kit

Super-charge your V-Core 3.1 with hybrid kinematics, front access belt tensioning, and a complete XY motion refresh, all in one drop-in kit.

Why Upgrade?

• Higher acceleration and smoother motion
• Front-access belt tensioners
• Metal-reinforced gantry & mounts

Hybrid X/Y Kinematics

• Borrowed from the V-Core 4.0 to boost performance, hybrid adds two extra motors to the Y-axis, allowing higher print speeds, higher input shaping acceleration recommendations, cutting down print time while maintaining top-notch quality.

Front-Access Belt Tensioners

• Tune belts straight from the front, no machine flipping or awkward angles.

Metal Reinforced X/Y kinematics

High-Temp Hybrid Steppers

• Four new high-temperature X/Y motors able to handle the enclosed chamber heat.

Kit Includes

• Hybrid X/Y kinematics assembly parts
• Metal-reinforced X-axis gantry
• 4 high-temp hybrid stepper motors
• Full-metal motor mounts & shaft supports
• New tool-head backplate
• 2 Rat Rig OMRON endstops + Y-axis cable
• 2 additional stepper drivers
• Complete idler bearing replacement set
• Genuine Gates belts

Check the full BOM here: V-Core 3.2H BOM

Designed For

• V-Core 3.1 – Standard Configuration
• Upgraded with Enclosure 2.0

COMPATIBILITY

The V-Core 3.2H was designed to be installed on the V-Core 3.1 with the Enclosure 2.0 upgrade kit installed. Below you can find alternatives if you have an Open Frame V-Core 3.1.

Not compatible with:

• V-Core 3.0
• V-Core 3.1 with Enclosure 1.0

Bill of Materials for Partial Retrofit - V-Core 3.1 Open Frame

The Partial Retrofit is the most cost-efficient way to install the V-Core 3.2H upgrade on an open frame V-Core 3.1. Depending on the size, you'll need:

• VC3.1 200 - 2x 560mm 3030 T-SLOT
• VC3.1 300 - 2x 660mm 3030 T-SLOT
• VC3.1 400 - 2x 760mm 3030 T-SLOT
• VC3.1 500 - 2x 860mm 3030 T-SLOT
• HW1914PC - Joining Plate for 3030 - T - Black Anodized, can be replaced with HW1915PC - Joining Plate for 3030 - 90 Degree - Black Anodized.
• Bear in mind that the current machine enclosing panels are designed for the T joining plate. Using a 90-degree joining plate will break compatibility.

Bill of Materials for Full Retrofit - V-Core 3.1 Open Frame

Full retrofit aims to keep compatibility with the Enclosure 2.0 panels, providing a different path to the V-Core 3.2H upgrade.

• Bill of materials:Click here!
• HW1914PC - Joining Plate for 3030 - T - Black Anodized, can be replaced with HW1915PC - Joining Plate for 3030 - 90 Degree - Black Anodized.
• Bear in mind that the current machine enclosing panels are designed for the T joining plate. Using a 90-degree joining plate will break compatibility.

The V-Core 3.2H is more than just an upgrade, it’s a celebration of the platform that helped us grow, and a thank you to the community that made it all possible.

Documentation

Build Guide: Step-by-step guide here
CAD Models: 200 mm | 300 mm | 400 mm | 500 mm
BOM: V-Core 3.2H BOM

Community Support

• Facebook: Rat Rig 3D Printer Community
• Discord: discord.gg/ratrig

License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International

This license enables reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator. If you remix, adapt, or build upon the material, you must license the modified material under identical terms. CC BY-NC-SA includes the following elements: