High quality Printable Extruder using HGX GEARS.

# 🚀 Wiggle Wiggle Extruder (Updated to V1.4 - Single-Drive Masterpiece)

### 🛑 IMPORTANT CHANGE LOG added Thin profiles HGX gears model(What's different?)

There is a new HGX gears profile Extruder for Hgx Lite Extruder 2.0 with better gears and bearing set.  It thinner than the HGX gear by 5mm.  This allow a very compact version

### 🛑 IMPORTANT CHANGE LOG (What's new in V1.5)

-Increase robustness for The wishbone Idling bearings holder
-Reduce base thickness and improve structure rigidity.
-Fine tune for easier filament insert
-Bumping Lever for the crushing force feel.

***Note:  I obtained a new HGX gears that has much thinner profile.  This can create a very thing extruder frame.  Will be release soon. 

### 🛑 IMPORTANT CHANGE LOG (What's new in V1.4)

Adjust the entry and exit angle for filament path for smoother extrusion.  
Note that most HGX extruder gears are  plastic , so over torque the gears will result is destruction of the gears.

The Wiggle Wiggle V1.4 is a complete mechanical overhaul designed to fix the structural limits of traditional, loose-tolerance extruder. In Orca slicer my flow was down to 0.82 but still has some over extrusion.  So calibrated the extruder flow rate before start printing any thing

By leveraging the Capstan Effect, this extruder turns passive back-tension into exponential grip—delivering massive linear driving power without ever slipping or grinding your filament. ( note that this only compare to 1 gear extruder.  Dual gear extruder has much more pushing force but suffered gears back slash causing artifacts.  This extruder is only arming for decent pushing force and smooth extrusion.  It's also has  very strong pulling force due ti the Capstan effect.  The max flow is decent around 22mm3/sec which should be enought for high speed printing

* 3-Screw Triangular Cage: The main housing now locks down using three structural screws arranged in a rigid triangle. This completely contains the immense internal separation forces of the HGX gears, keeping your bearing shafts perfectly parallel down to 0.01mm under heavy loads.

* 5-Degree Angled IGUS Exit Guide: Real-world testing shows that filament permanently curls and bends as it leaves mismatched wheels. The internal filament path is now tilted by 5 degrees and features an organic, curved entrance ramp.

### 📊 Real-World Performance Boundaries (Tested via Klipper)

This design has been pushed to the absolute limits of desktop hardware:

* Improved Volumetric Limit(TPU): Tested cleanly up to  12.7 mm³/s at 70 mm/s using a standard hotend configuration.  Printing PLA at speed higher than 200mm/s is a non issue.  Max volume metric for PLA is 24.6 mm³/s

* Zero Mechanical Failure: When pushed past its limits into the 17.8 mm³/s range, the extruder never grinds, slips, or buckles. Instead, it successfully pushes the system until it hits a pure thermodynamic hotend limit (under-extrusion / cold extrusion). Your mechanical drive train is no longer the bottleneck!

### 🛠 Recommended Material Configurations

* Main Wishbone & Chassis: Print at 100% solid infill using rigid, high-tensile PLA (for maximum geometric stiffness against gear separation) or an engineering Copolymer like Nylon 6+66 (for ultimate high-heat stepper isolation). Print inside an enclosure with 0% part cooling fan to guarantee your 0.01mm tolerances do not warp.

* Internal Guides: Print using self-lubricating filaments (IGUS or high-grade POM or Nylone 6) to ensure a zero-friction, wear-in lamination layer against the spinning drive teeth.

*Robust mechanical structure .  I intended losing the tolerant required for easier printing and assembly.

*Tested with whole body printed in PLA with a fan on the pancake motor.  Not tested with better material.  It's enough for casual printing with beautiful  print lines and smooth extrusion.  The cooling fan bracket included for testing purpose. 

INTELLECTUAL PROPERTY & DESIGN LICENSING DECLARATION

Project Title: Symmetrical Capstan-Wishbone-Wiggle Extruder (SCWWE v1.1) Original Author / Proprietor: [Insert Your Name or Workshop Handle Here] Release Date: July 2026 Document Version: 1.1

LICENSE DECLARATION

This design documentation, including all accompanying technical descriptions, engineering calculations, and geometric 3D model source files (.STL format), is licensed under the terms of the CERN Open Hardware Licence Version 2 - Weakly-Reciprocal (CERN-OHL-W v2).

You may distribute and modify this documentation and reproduce the physical hardware described herein under the conditions of the CERN-OHL-W v2 license.

TERMS AND CONDITIONS SUMMARY (CERN-OHL-W v2)

2. ATTRIBUTION: Anyone redistributing, modifying, or manufacturing this hardware must keep the original author's name, copyright notice, and licensing headers conspicuously intact on all derivative documents and physical housing blocks.

4. WEAK RECIPROCITY: If anyone modifies the source design files of the extruder itself, they are legally required to publish those specific modifications openly under this identical license.

6. SCOPE ISOLATION: The reciprocity clause is strictly isolated to the SCWWE extruder assembly. If someone mounts this extruder onto a different 3D printer, a proprietary CNC milling frame, or commercial gantry machinery, they are NOT forced to open-source the wider machine architecture.

8. NO PATENTING: No downstream user or manufacturing entity can take this geometry, modify it minorly, and lock it behind a private commercial patent. This public, timestamped filing establishes irreversible "Prior Art."

DISCLAIMER OF WARRANTY

THE HARDWARE DESIGN AND DOCUMENTATION ARE PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON- INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE HARDWARE OR THE USE OR OTHER DEALINGS IN THE HARDWARE.

The full, legally binding text of the CERN-OHL-W v2 license is available for public reference at the standard registry: https://spdx.org