I am excitedly but carefully following the instructions at https://ohai.lulzbot.com/project/dual-extruder-v2-tool-head-installation/accessories/ to install a dual extruder on my TAZ 5. A couple of problems have arisen.
After flashing the firmware, it said is was done, LCD said DualMetal TAZ Ready, but the Next button on the wizard remained greyed out. I waited and waited and Next would not activate. I terminated the wizard. LulzBot TAZ 5 (Dual V2) was checked under the Machine menu, the same also showed up under machine settings, so I thought I was OK. It was a bit unsettling, none-the-less.
The real problem occurred later, however. I loaded the inner_square.stl and outer_square.stl. Following the instructions, I left clicked on the small, inner square, and then right clicked on the same small inner square. There was supposed to be an option for “Dual Extrusion Merge”, but that option does not appear on the context menu.
Has anyone experienced this problem? Does anyone have suggestions?
If it matters, I have Cura 18.03 on Mac OS X 10.11.3