I’ve been delaying upgrading to Cura 2.6.66 due to the warning about needing to flash the firmware, and that once flashed, STLs sliced under previous versions will not work.
My problem is that I use my printer in a mixed environment: At home, I slice in Cura on my Mac Laptop, and send the gcode to my Lulzbot Mini (either directly, or via OctoPrint).
I also volunteer in an elementary school where we do various projects using my 3D printer. The laptops which the classroom has access to are ancient and won’t run even moderately demanding programs (we do our design work online in TinkerCad). Due to both the limitation of the available equipment and the logistics of managing a classroom full of kids, we’ve been using OctoPrint to control the Mini and do our slicing. It has worked out very well for us. The kids’ designs tend not to be extremely complex, so slicing is quick on the Pi. Plus they get a kick out of using the Pi for something like this.
OctoPrint’s slicer is based on Ultimaker Cura 15.04.x, both that and the older versions of Cura I use can deal with the same firmware in the LB Mini. I’m concerned that if I upgrade my home system to 2.6.66, I won’t be able to slice with OctoPrint at the school anymore.
I’m not looking forward to continually reflashing my firmware every time the printer moves back and forth.
Any thoughts on this? (and yes, I know… Ideally the OctoPrint folks would upgrade the version of the Cura engine they are using, but the main developer does not have time. I’m hoping someone does take on the task of making a new Cura plugin for OctoPrint.