
So you’re looking for the CAD download files…… Well E3D has finally released the files. You can find the files at their Github. https://github.com/e3donline/ToolChanger
E3D ToolChanger Assembled

The E3D tool changer files are published on github but if you’re looking for the assembled files or toolchanger assembly check out EJaworenko on Thingiverse here.
“E3D released their ToolChanger printer design to be open source! Exciting times. I went through the process of assembling the entire printer as a way of studying what they did and why they did certain things while designing a printer based off of it.” -EJaworenko
- Iges
- Step
- Fusion 360 F3Z files
- DXF
E3D ToolChanger Enclosure

Gregory Holloway published the enclosure design on Thingiverse along with many other E3D Toolchanger files such as the ASMBL Subtractive Tool. Greg’s laser-cut acrylic enclosure design is for the ASMBL Subtractive Tool. Check out Gregory’s Thingiverse here.
E3D ToolChanger Clones
While E3D has been perfecting their motion system and toolchanger design it take long for the clever engineering detectives that make up the Reprap community to reverse engineer the motion shystem. Makers have been developing tool changing techniques before E3D changed the game with their new machine. The concept has been presented in many ways but since the E3D MRRF 2019 presentation many inspired designs and clones have appeared. The best one that I have seen is by a Thingiverse User: TPRA.

TPRA’s FunX4 Toolchanging 3D Printer https://www.thingiverse.com/thing:3552566

First tests here :
Still work in progress :
“I’m releasing this now even if not definitive because people asked for it, but it’s still a prototype.” -TPRA
I’ll keep posting updates when i will do some.
BOM
Duet Wifi + Duex 5 boards.
CoreXY
Suspended Z
Igus bushings
MGN15 hiwin rails for Z, MGN9 hiwin rails for XY
Openbuilds C-Beams + laser-cut aluminium plates frame
4x titan extruder
4x e3d v6 with threaded heatsink, pt100 sensors and precision cartridges
0.9° steppers, (1.8° for Z, with a 20T/40T pulley system)
PrintBite build surface
Capricorn tubing
MKS DS450 servo
240V heatbed with panasonic SSR
Gates belts
Shoulder screws on every pulley
Hall-effect endstops











Kinematic Couplings / Mounts
Practical Precision demonstrates kinematic mount design and layout using the Maxwell criterion.
- The Maxwell criterion
- How to layout a kinematic mount using the Maxwell criterion
- Common kinematic mount layouts
- Challenging layouts – optical payload for a stabilized gimbal
- Stability and repeatability over micro assemblies and disassemblies
- Example of a poor layout for stability and repeatability
- Satisfying the Maxwell criterion for a planar kinematic mount
- Instantaneous centers of rotation and the kinematics of the mount
In this video Practical Precision demonstrates how to design and model a kinematic mount in CAD PP uses SolidWorks. Kinematic mounts are useful for precise mounting in highly accurate applications.
- Principles of kinematic constraint
- Design of a Maxwell-style kinematic mount
- Preload mechanisms for kinematic mounts
- Design considerations Parametric CAD model of a kinematic mount
- Key challenges of kinematic mount design
@FullControlGCD of Loughborough University has fitted his #ToolChanger with a microscope for in-process part inspection placing the microscope at precise X, Y, or Z positions.
— E3D-Online (@E3DOnline) April 27, 2021
Get your own ToolChanger here: https://t.co/PvnwecvkDY pic.twitter.com/mwGotopssG
#TBT In 2018 we had a vision to create a Motion System capable of switching between tools mid-print without limit. This interview with @toms3dp from @MidwestRRfest 2018 shows our alpha design and just how far we’ve come. 💪
— E3D-Online (@E3DOnline) May 13, 2021
🎞️ https://t.co/jys6Vsxscz
🖨️ https://t.co/uVf6aka9zu pic.twitter.com/XQiqjkz37o
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SolidCore Lightweight Hotend Mount with BLTouch Offset Mounting Bracket 40mm$35.00
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SolidCore XY Stepper Motor Plates with Belt Tensioning Slots$12.50
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SolidCore CoreXY LightWeight Y-Carriage Upgrade$35.00
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SolidCore 2020 Frame Gussets$13.00
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SolidCore X-Carriage Set: Weight Reduced-Light Weight Upgrade$67.00
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Kinematic Mounting Bracket Kit$75.00
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MGN12 Linear Rail Stop-Alignment Tool 2020$10.00
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Kinematic Coupling Mounts With Magnetic Preload$45.00
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Kinematic Coupled Mounts$25.00
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Triple Z Idler Mount Set$55.00
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SolidCore Stealth XY-Motor Mounts Upgrade$50.00
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SolidCore XY Idler Pulley Bracket$40.00
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SolidCore CoreXY Mechanism with Motor Mount Upgrade$185.00
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Kinematic Mounting Bracket-Fixed-Neutral$18.00
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WorkHorse Gantry Plates$80.00
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Linear Rail Stop 2020$10.00
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Belt Clamp$3.00
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Endstop Switch Mount – 2040$8.00
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SolidCore Side Plates$40.00
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MGN12 2040 Carriage Stop-Linear Rail Alignment Tool$12.50
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Hotend Mount BLtouch / E3D$20.00
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SolidCore Z-Bracket$17.50
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Triple Z / Belted Z-Axis Motor Mount$20.00
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SolidCore CoreXY Y-Carriage$25.00
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SolidCore X-Carriage Kit$45.00
SolidCore Kinematic Bed Setup
While this write up is still a work in progress as I continue to research kinematic mounting and the math used to find the angle that properly constrains the bed to allow for thermal expansion. This is the documented details of how the SolidCore kinematic mounting system should work. So comment or correct me if…
SolidCore ToolChanger
Although this page will be used to document and collect resources to implement a toolchanger on the SolidCore printer, we’ve only completed one so far for this case study. The following design analysis is discussing a toolchanger project we prototyped for our customer, Nandan. The majority of the topic currently being discussed is of the…
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Frame Profile Specs Size 2020 or 20mm x 20mm Style T-Slot Frame BOM Part List PartQuantityDescriptionSourceDocumentationFolderFrame Extrusions2020 T-SlotZylTechFrame Size ListFrame Folder570mm Long6Vertical (Tall)ZylTechFrame Size ListFrame Folder430mm Long3Vertical (Z-Axis Rail)ZylTechFrame Size ListFrame Folder660mm Long4Length (Long)ZylTechFrame Size ListFrame Folder500mm Long2Length (XY-Rail Short)ZylTechFrame Size ListFrame Folder450mm Long8WidthZylTechFrame Size ListFrame Folder SolidCore Frame BOM Vertical Frame Extrusions 6pcs 570mm…
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Modular Scalable Linear Rails Balanced Carriage Pull Enclosure BOM utilizes most available parts All Metal Parts or 3D Printed Z-Axis: Independent Driven or Shared Belt Routing
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Linear Rails
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Railcore 3D Printer
We first discovered RailCore Labs and their beautiful corexy design at MRRF 2019. The Railcore 3d printer was designed by designed by Tony Akens and J. Steve White when discussing an idea of a core xy printer with linear rails on the x,y and z-axis on Reprap IRC.
Rapid Event TCT
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Houston Maker Faire
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How to 3D Print Large Parts
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