Rat Rig  V-Core 3 Upgrade Kit (v3.0 to v3.1)
SKU: 91588916636

Rat Rig V-Core 3 Upgrade Kit (v3.0 to v3.1)

Sale price$137.70 Regular price$153.00
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

Rat Rig V-Core 3 Upgrade Kit (v3.0 to v3.1)Are you looking to buy a Rat Rig V Core 3 Upgrade Kit (v3. 0 to v3. 1) in Australia? STRONGER. SMOOTHER. EASIER. THE NEW V CORE 3. 1 IS HERE! BETTER THAN EVER. After over a year of production and thousands of units delivered to customers worldwide, we can say we learned a lot! Now, we're bringing all those lessons to the newest iteration of the V Core: Version 3. 1! More robust than ever, much easier to put together, and with little polishes all over

Are you looking to buy a Rat Rig  V-Core 3 Upgrade Kit (v3.0 to v3.1) in Australia?

STRONGER. SMOOTHER. EASIER. THE NEW V-CORE 3.1 IS HERE!

 

 

BETTER THAN EVER.

After over a year of production and thousands of units delivered to customers worldwide, we can say we learned a lot! Now, we're bringing all those lessons to the newest iteration of the V-Core: Version 3.1! More robust than ever, much easier to put together, and with little polishes all over the design.

 
 

EASIER BUILD

    • Reverse frame build makes it much easier to get the frame square where it matters the most. Build from the top down with a flat XY top section, eliminating skew and bed mesh problems later

 

    • No more Z alignment, plug & play installation

 

  • New build manual
 

MORE ROBUST KINEMATICS

New XY idlers with much bigger bearings. Smoother, stronger and more long lasting.

 

MORE TOLERANT DESIGN

The completely redesigned Z axis with decouplers makes the machine far less sensitive to part issues and builder errors

 

KIT CONTENTS

The base kit includes all mechanical parts to perform the upgrade, including fasteners for the EVA 3 assemblies supported by Rat Rig (Extruders: Orbiter 2, LGX, LGX Lite / Hot-ends: Rapido, Mosquito, Mosquito Magnum). The only part that is dependent on machine size is the belt, which we ship in a length long enough for the largest machine size.

If you purchase the Printed Part Set, it will include all essential V-Core 3.1 Printed Parts (some cable management parts are not included), including EVA 3 Parts to mount your extruder and hot-end selection, along with the new fan duct for the new 4028 Fan.

TUTORIAL: Connecting a 4028 Fan

CLICK HERE TO ACCESS THE UPGRADE DOCUMENTATION

 

NEW SIZE 200MM

 

NEW IDLERS (STACKS) ON ALL POSITIONS

 

NEW XY JOINERS AND XY JOINER PLATES

 

NEW CUSTOM BI-MATERIAL DECOUPLERS

 

NEW COUPLERS

 

NEW Z ARMS WITH IMPROVED POM NUT POSITION

 

NEW LOCKED POSITION MOTOR MOUNTS

 

NEW TOP Z LEADSCREW CONSTRAINTS

 

NEW LINEAR RAIL POSITION FOR FRONT ZS ALLOWING FOR LESS OBSTRUCTED FRONT ACCESS TO THE PRINTER

 

NEW POST INSTALL BOTTOM PANEL

 

NEW ELECTRONICS PANEL DESIGN (DXF FILES AVAILABLE FOR SINGLE PIECE OR 4 PIECE SPLIT PANEL)

 

EVA 3.0

 

NEW COOLING: SHIPPING WITH 4028 FANS FOR EXTREME COOLING!

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91588916636

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Chief TB
Belleville, US
★★★★★ 5
A great sport visor
Size: One Size, Color: (100) White / White / Reflective
My head is small so a lot of visors don’t fit because of the Velcro. This is perfect and the ability to wet it for coolness is great. Love it for tennis.
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Reviewed in the United States on August 14, 2025
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M. O'Mara
Battle Creek, US
★★★★★ 5
Great for running
Size: One Size, Color: (001) Black / Black / Reflective
Hat fits well and worked great for my marathon. The Velcro doesn’t pull on my hair.
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Reviewed in the United States on November 24, 2025
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Kirsten Myers
Chelsea, US
★★★★★ 5
Cute and comfortable, though a little big without tightening a bit
Size: One Size, Color: (100) White / White / Reflective
Love the bright color and material. It fits a little big at first but has the ability to tighten quite a bit so it should be fine like it is for me. I just have a smaller head. It has great coverage. Feels comfortable as well.
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Reviewed in the United States on January 7, 2026
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JuJu
Louisville, US
★★★★★ 4
Perfect fit
Size: One Size, Color: (001) Black / Black / Reflective
I ordered this to wear during my upcoming vacation. It will shade my face from direct sunlight. I initially wished the brim was just a tad bit shorter but then I realize the current brim size will serve the purpose; that being the reason why it was purchased.
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Reviewed in the United States on June 24, 2025
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Angee
Battle Creek, US
★★★★★ 5
Buy it!
Size: One Size, Color: (001) Black / Black / Reflective, Size: One Size, Color: (001) Black / Black / Reflective
This hat (visor) is by far one of the most comfortable ones I’ve ever worn! Absolutely love it!!!!
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Reviewed in the United States on May 18, 2026

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