ToolChanger
My E3D Toolchanger Is a great machine, a few enhancements I or others have made linked below.
Software
My Github repo for RRF3 Duet2 Toolchanger Configuration
My Github repo fork of Slicer Profiles
My Hardware
BTT Smart Filament Sensor mounting bracket (saves drilling the back panel)
Simple Purge Bin and Wiper
Other Projects
Kevin Mardirossain's Pebble Wiper github repo
Rene Jurack's alternative Hemera PCF Duct Cults3D
Rene Jurack's Detachable Spool Holders Cults3D
ASMBL (Subtractive) Tool by Greg@E3D Cults3D