We have seen an increasing popularity of dual extruder FFF/FDM 3D printers as of late. These machines provide many benefits over their single extruder counterparts, including the ability to print in multiple colors and/or materials during a continuous print job. This creates a simple method of building support material, especially when you use HIPS or PVA as the support material, as these can easily be dissolved in either warm water or Limonene. Dual extruder 3D printers, while they have tremendous benefits, also present a few problems.
(…weiter auf 3dprint.com)
Pt.1: Dual „parking“ extruder for a Prusa i3 RepRap 3D printer / by 3D-Proto
This is my approach for dual extrusion to avoid the current issues with fixed side by side dual extrusion. Enjoy watching the first part with the testing GCode. See you soon with the second part and hopefully some printing with this dual extruder.
More details will be uploaded soon on my you tube channel and www.3d-proto.de.