Quad-Quad designed for Creality Ender Series Print-In-Place with FreeCAD files

I was missing a subassembly:  invol-assem4-plan-9-7-23-complete.FCStd. It is now uploaded. The Printables web system alters the file suffix to lowercase. If the file downloads as  invol-assem4-plan-9-7-23-complete.fcstd, you may need to rename it back to invol-assem4-plan-9-7-23-complete.FCStd. 

These were very enjoyable to create using FreeCAD. A great learning experience. I had used the Assembly4 workbench for them. These have been designed specifically for output on my Creality Ender S1 and V3SE printers. If the gears seem to be fused together it is possible to crack them apart without damaging  or breaking the parts. Be careful. A slower print speed may help.

If you have a good tune and setup for your printer maybe adjusting the design file for clearances is the way to go. I have printed loads of these without trouble. If a print is too tight just be patient finding the tight spot. If you have a tight spot, push downward on the tight gear, don't turn or operate the planetary!

Start with the double-planetary-assem4-new-carrier.stl file and if it is too tight try the extra clearance file.

I have included the FreeCAD files for the planetaries, so feel free to adjust for clearances.

These are too loose on my Voron Trident, but a good printing (not over extruding for sure) Ender should work well! I printed these with 50% infill, 3 walls and top/bottom layers. Easiest and cleanest is PLA.

These FreeCAD design files were created using the Gears and Assembly4 workbenches. It took me ages to track them down on my two dev boxes but they seem to be complete.

You may also be interested in my other Voron Trident mods shown here or at https://www.printables.com/@JimChristian_3198049  &  https://www.printables.com/@JimChristian_3198049/models  They work well  :-)

Also, if you find value in this, please give it a like. Thanks.

Opened and checked on newly compiled FreeCAD git sources:

OS: Debian GNU/Linux 13 (trixie) (X-Generic/xwayland)

Architecture: x86_64

Version: 1.2.0dev.44888 (Git)

Build date: 2026/01/05 21:59:05

Build type: Unknown

Branch: main

Hash: ede7013f55872bd631d268ded826518b19d616de

Python 3.11.13, Qt 6.8.3, Coin 4.0.3, Vtk 9.3.1, boost 1_86, Eigen3 3.4.0, PySide 6.8.3

shiboken 6.8.3, xerces-c 3.3.0, IfcOpenShell 0.8.2, OCC 7.8.1

Locale: English/United States (en_US)

Navigation Style/Orbit Style/Rotation Mode: Blender/Rounded Arcball/Window center

Stylesheet/Theme/QtStyle: Darker.qss/Darker/

Logical DPI/Physical DPI/Pixel Ratio: 96/96.237/1.25

Installed mods:

* OpenTheme 2025.5.20

* ProDarkThemePreferencePack 1.0.0

* freecad.gears 1.3.0

* FreeCAD-themes 2025.6.4

* Assembly4 0.60.4