Best CoreXY 3D Printers 2021 1

With so many 3d printers and open source designs out there, it can be a challenge to decide which option to choose from. Every CoreXY design has different design goals for different needs as well as different compromises. Whether you’re building a new printer or just in need of a new 3d printer, there are many options to choose from with each of them having their own unique advantages and disadvantages. 

  • Size vs Speed
  • Cost vs Accuracy
  • Size vs Volume

In this article we examine possible 3d printer designs that you can build yourself. All of them are based on the corexy motion system and are open source. Every printer has its own set of pros and cons and some may not be for everyone . Depending on what your looking for there are many options to choose from.

  • DIY 3D Printer Kits
  • Design and Build Plans
  • Plug and Play- Ready to Print
  • New Projects Soon To Be Released



CoreXY Belt Path Diagram
CoreXY Belt Path Diagram

When you think about a good machine build you have to consider a few things. How developed is the design? Many common designs will have:

  • Contributors designing fixes, mods and other spun off remixes.
  • How many mods are there that could allow you to modify your printer for custom applications
  • Is there a user group that you use as a resource to troubleshoot or upgrade and update your build. While there are many resources to draw upon User groups will keep you in the circle of news, updates and creative solutions.

see CoreXY Kinematics Explained


  • Jubilee
  • SecKit
  • Voron 3D Printer
  • BLV MGN Cube
  • Railcore
  • HyperCube
  • E3D ToolChanger



HeVort-Advanced DIY 3D Printer

HeVort-Advanced DIY 3D Printer
HeVort-Advanced DIY 3D Printer

HeVort DIY 3D Printer: Non-Planer 3D Printing

The HeVort is a design that takes bed leveling to the next level. The Hevort 3-point bed tilt also changes the way parts need to be supported so for models with overhangs facing ‘uphill’ into the angle, supports aren’t needed. Although non-planar printing is not really widely implemented yet, there are new slicer post and processor components  for printing at fixed angles other than 90.  In the future, we may see more non-planar printing. This would allow you to print a part in vertical mode and add another component at an angle without need of support material or other mechanical aids.

With non-planar printing becoming more and more popular, it’s not surprising that slicer toolpaths are available. This means you can optimize how your layers are printed and reduce support needed thanks to angled orientation. One problem with 3D printing is that it can be difficult to support overhangs.

True 3-Point Bed Leveling

HeVort Z Axis Design
HeVort Z Axis Design


HeVort Z-Axis Design

The HeVort uses a mechanical setup that consists of linear rails mounted to the bottom of the build plate along with 3-point bed leveling. It’s a concept called Non-planer 3d printing. Some refer to the setup as True Bed Leveling.

As slicer software advances, software will soon be able to generate optimized toolpaths for printing fixed angles. Combined with layer optimization, support material will no longer be needed.

HeVort On Github here

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Jubilee 3D Printer
Jubilee 3D Printer


Jubilee corexy is one of the most hackable 3d printers. If your looking for a highly customizable printer you’ll have to take a look at this. It’s a multi-tool motion platform that has made much progress in the last year. Out-of-the-box, Jubilee is configured for multimaterial 3D printing compatible with current E3D toolchanger parts. Jubilee is meant to be extended by the community through custom tools and applications.

  • Modular Platform
  • ToolChanger
  • Customizable
  • Awesome

The Jubilee toolchanging platform was quick to adopted as manufactures began to offer all-metal upgrades for the platform. Mandala Rose Works offers a range of lightweight machined parts. The Tool changer platform has a big community on Discord.


Rat-Rig V-Core 3

Rat-Rig V-Core 3
Rat-Rig V-Core 3

The Ratrig V-Core 3 is a premium DIY kit for your CoreXY needs. The “Configurable” kit is simple for beginners but built with advanced users in mind. The Rat Rig V-Core is quickly getting traction with a growing community that’s pushing the limits of corexy scalability as many are diving into 3d printer builds as big as 500mm x 500mm x 500mm.

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The RatRig  “Configurable kit” is as complete as possible with many choices of components, including aluminum frames, precision rails, linear bearings, stepper motors & belts. This complete and customizable DIY kit can be as simple or complex as you’d like it to be, with many choices of bits that will go into the printer when assembling your CoreXY 3D Printer. learn more

VzBoT-High Speed CoreXY 3D Printer


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The CrazyCreatorCube is a new project that is the alpha state as it launches it’s new open source design. The tool-changing 3D printer can utilize up to four extruders at a time. The tool holder uses neodymium magnets to mount the tools into the tool stations with a mechanical, latching mechanism. The central fan unit and air duct is optimized air flow. The CrazyCreatorCube has a well designed carriage well suited for belt tensioning.

  • Build volume: 350x330x400mm
  • ToolChanger Mechanism: Magnetic
  • Open-Source
  • Electronics: Duet2 with Duex5 Expansion Board

See CrazyCreatorCube Website

Voron Printer V2 By Paul Nokel
Voron 3D Printer



The Voron V2 by Voron Design is a well engineered printer with a very promising future. It has a huge community that loves their DIY builds and is very well documented.

  • Build volume: Scalable
  • Extruder: AfterBurner
  • Enclosure: Open or Enclosed
  • Moving Gantry
  • Electronics: Duet3D / Klipper


The Voron V2.4 is a light weight and compact corexy motion system with a superior design. The printer has a moving gantry /  fixed bed that utilizes four point z-axis belts which is very unique for a corexy. The design is easily enclosed and has a lighter moving mass which sets it up for high speed prints with beautiful parts. While the V2 is a great machine it’s probably not the best for first time builders but does have a build guide that some say is far superior.

Although the four Z-axis motors implementation and expansion board may be challenging for some there are many more builds much simpler to choose from that will produce great results. The Voron V2 has precision linear rails for the X- and Y-axes and dual-drive extruder. The design uses four independent z-axis stepper motors that are belt driven which eliminates z-wobble that most machines experience. The light-weight moving gantry design increases print quality with it’s belt driven system which makes this corexy 3d printer design a community favorite.

  • Light-Weight Carriage Design
  • High speed prints with fewer defects
  • Better at printing tall thin things 
  • Great community support on Reddit
  • Less moving mass of the extruder carriage

The advantage the Voron’s fixed bed and belted z-axis that the moving mass isn’t at the top of the printer. While most 3d printers print objects at the top of the machine, the Voron’s fixed bed-Moving gantry travels down to the bed. This mechanical arrangement keeps the moving mass towards the center of the machine This configuration makes the design more stable allowing for faster movements and 3d printing.

Voron Website learn more



Blackbox ToolChanger 3D Printer
Blackbox ToolChanger 3D Printer

Blackbox: The High-Quality Toolchanging Platform

While there are many open source 3d printer designs available, most of them are limited to specific 3d printable plastics. The Blackbox was designed and created by Marc Schömann of, who has a different approach to 3d printing with multi-materials. The Blackbox is designed to be a flexible platform for multitool fabrication. The multitool / multimaterial manufacturing platform for printing highly exotic materials and integrated assemblies.

The Blackbox was designed to produce high-end parts that challenge most 3d printers. The Blackbox 3D printer is a fully open source design that uses water-cooled printheads and a direct drive toolchanging system. The water-cooled setup offers more precise thermal control that’s more reliable and consistent. These factors are the secret ingredient to high quality 3D printing.

Most common 3d printers are limited to printing single materials and colors. The blackbox has a different design goal. The Blackbox design aims to provide a machine that can produce high-end parts from a range of many different materials.

Blackbox Specs

  • Build Volume: 300 mm x 300 mm x 275 mm
  • Full enclosure
  • Direct drive toolchanger 
  • Water-cooled toolheads 
  • Belted  Z-axis
  • Automated leveling and calibration
  • Price: $2,900

The belt-driven Z-axis has a 1:10 pulley reduction that allows the bed and layer height to precise movement  The frame is made from 4040 t-slot profiles and can print up to five materials at a time with the toolchanger. The water-cooled tool heads are exchangeable cooled passively by the tool bank or the x-axis. While the tools use Bowden tube setup, the X-Axis carries one direct driven Extruder for flexible materials and uses a laser to keep the print area warm. The XYZ-axis all use linear rails and the  X-Axis uses a lightweight carbon support.

The goal is to print complex composite parts with multiple materials. The idea is that the tools are cooled on the tool bank while they are inactive and on the X-axis after they are picked up by it. This eliminates the need for cooling hoses or fans which make the design more compact and lightweight.

The multi-material 3d printing platform is pushing the boundaries of 3d printing and has plans to open the door to multitool fabrication with integrated assemblies.

BlackBox 3D Printer
BlackBox 3D Printer
  • Open-Source
  • 300mm x 300mm x 240mm Build Area
  • Interchangeable Printheads

learn more



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The Railcore 3D Printer by J. Steve White & Tony Akens of RailCore Labs is core xy design has some kick. Although this a new open source build has a strong and active community. The RailCore Printer is a customizable corexy design that successfully implements 3 point bed leveling. Designed to use X, Y and Z-axis linear rails, the RailCore also is available with machined aluminum parts. Three point bed leveling with automatic bed tramming using the Duet3d electronics allows for a perfect first layer.

RailCore Labs

We first discovered RailCore Labs and the open-source corexy design at MRRF 2019. The Railcore 3d printer was designed while Tony Akens and J. Steve White were discussing an idea of a 3d printer with linear rails on the x,y and z-axis on Reprap IRC.

The Railcore uses 15mm frame extrusions and M3 hardware that brings down the cost. 15mm Extrusions use m3 hardware is much cheaper compared to m4 or m5 hardware. Although 15mm extrusions and m3 hardware may be less rigid the printer gains it’s rigidity from the reinforcement of the side panels. Many more design decisions were made to make the printer build as space efficient as possible while maximizing build volume. The printer build gains it’s rigidity

It is a well thought out design that has verity of CNC machined upgrades to pimp your printer. The prints that are made from the machine are absolutely beautiful. This 3d printer build is most commonly found using the Duet Wifi to power the system. The print quality is spectacular with it’s high precision 0.9 degree steppers. The pros of the Railcore corexy is:

  • Linear Rails on X,Y and Z-axis
  • Enclosure
  • 15mm extrusions to reduce the price of BOM
  • All-metal parts
  • Space & Cost efficient

RailCore II 300ZL

The original Railcore printer is no longer available due to the updated 300 ZL and ZLT version. But here’s the details:

  • Linear Rails XYZ Axis
  • 300mm x 300mm x 330mm Build Area
  • ZLT is 300m x 300mm x 600mm Build Area
  • Auto Leveling
  • Hotend: E3D V6 or Mosquito
  • 0.9 Degree Steppers
  • Hardware: 3D Printed Parts or Machined Aluminum Upgrades

RailCore Upgrades

The Railcore ecosystem consists of all aluminum machined parts. 713Maker and Mandala Rose Works manufactures a variety of CNC machined aluminum parts such as motor and idler mounts and aluminum heat bed plates. Upgrades such as a kinematic bed mount is also available. The upgrade kit gives you the option to mount the z-yoke and bed to a kinematic coupled system. This setup is based on the Kelvin style kinematics and is better suited to handle the thermal expansion of your bed as it heats up.

  • 713Maker
  • Mandala Rose Works
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Railcore 3d Printer

The Railcore 3d printer’s ecosystem of parts also include a variety of CNC machined aluminum parts that can be found by 713Maker and Mandala Rose Works that can make your printer look like a hotrod.

RailCore Tool Changer

While a toolchanger option isn’t currently available you’ll probably see a design oneday. Tony Akens explained in a fb post that the Railcore wasn’t designed for a toolchanger. RailCore Labs plans to retro-fit the E3D Tool Plates but it’s not built for toolchanging. Tony goes on to suggest that one would have to modify the printer and change how the RailCore works. He explains that bolting on components is easy by design but may complicate the RailCore bed leveling. He suggests that the Jubilee is somewhere in between the RailCore and the E3D ASMBL but has future plans to work with Joshua Vasquez the creator of the Jubilee.


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If you havn’t seen the E3D ToolChanger motion system , you’re missing out. The open source design is most likely the future of 3d printing… or at least the begining of true desktop manufacturing. While the motion system is somewhat in beta testing phase the new platform has a lot to promise and has inspired a wave of new printers exploring different tool changing methods.


Designed and built by Wes Cherry

CroXY is a fully enclosed 3D Quadrap printer with a crossed linear rail gantry design, direct drive extruder and a kinematically mounted bed that moves in Z with three ball screws. Although this printer isn’t exactly a corexy it does utilize the same kinematics.


The Quadrap mechanism is similar to a corexy but one or two extra stepper motors. It’s a cross between a core-xy and the ultimaker’s XY mechanical arrangement.

  • X- Axis
  • Y-Axis
  • X2-Axis or Y2-Axis / Both X2 abd Y2-Axis

The crossed members at the print head carriage allow low moving masses because none of the motors (X,Y or E) are moving with the extruder carriage. The corexy’s belt stretch issue is minimized when scaled up but resistance may increase.

  • Minimized belt length
  • Increased Resistance

learn more