ahoeben

If you are only slicing for single extrusion, you don’t have to specify any setting for that extruder except for those in fdmextruder.def.json, because the engine should always fall back to the global value (or the default if there isn’t a global setting) if you don’t specify a value for the extruder. You don’t have to specify values that equal the “default_value” in fdmprinter.def.json, but the engine ignores the “value” that is set in fdmprintet.def.json.

(Your layerview is in “compatibility mode”, either because your gpu is too old or because you have forced compatibility mode in the general preferences) Please save your buildplate as a project, so we can replicate the problem.

That would be ethernet over USB, which does not exist in the way you suggest. USB over ethernet does. How about an access point outside the enclosure that hosts a network strictly for the UM5 to use?

I have a hunch something went wrong setting the language.

As a sidenote, Cura shows your layerheight with an orange background to tell you this is probably not going to get you great results with a 0.4 mm nozzle. You want the extruded material to be squished a little into the previous layer. You generally need a layerheight that is at most about half of the nozzle diameter.

If you want to make it easier to reproduce the issue on our end, save the file as a project. Then we can get exactly what your configuration and settings are.

I made this a couple of weeks ago for this exact question: http://files.fieldofview.com/cura/Replacement_Patterns.html You asked for all of them ;-). Those are all settings that are used in Cura. Not all of them may be available in the sidebar though, for various different reasons.

Could still be caused by a defect of the mesh. Did you check X-Ray View for red areas, as suggested above by someone from Ultimaker?

I'm guessing you are talking about Layer View, which shows the sliced result. Have you checked your models in X-Ray View? In all likelyhood, there will be areas that show up red in X-Ray View. This means that your models are broken/non-manifold/not watertight/not well suited for 3d printing. There are applications and services that will let you repair your model before slicing, though it is best to model them non-broken.

UM3 and UM S5 printers have dual extrusion out of the box, so they don’t need to be modified.

Data is a List (the Python name for array) of gcode layer data. The first item of the list is the preamble (data that CuraEngine adds in front of the start gcode), followed by the start gcode, then each layer and finally the end gcode. Your execute method should return the processed data, which has the same structure and is handed to the next script or to the gcode writer.

I don't think that is supported with the stock Cura 15.04, but maybe there is a postprocessing plugin to enable it.

I can see from the gcode that there are one or more postprocessing scripts active. I can't see what they (are meant to) do.

The 8 extruder limit is only there for the Custom FDM Printer. If you create your own printer definition (json files) you can have as many extruders as you like. The interface will probably suffer though.

This video by @LePaul should get you started

In some (very?) rare occasions, Cura and the printer seem to miscommunicate which causes Cura to assume the firmware is too old to properly communicate and then do that auth request. I've had this happen on an S5 (once), which never had the firmware that required authentication.

Yes, just leave the lever alone. Or play with it (once or so) to see what it does; it does not lock anything, but moves the second core up (lever in front position) or down (lever in back position). Just remember to put it back to the original position where the printer expects it to be (though it should try to put it in that position at the start of the print). On the right side of the gantry, there is a small "fork" that can grab the lever. When switching nozzles, the printer moves the lever into that fork and moves from front to back (or the other way around) to operate the lever.

You don’t need to do anything with the lever by hand. The printer operates the lever for you, no matter what core you print with.

If you want a nozzle size setting in the sidebar, install the "Printer Settings" plugin from the Toolbox.

Better fix: if line.startsWith(b"ok") and b"T:" in line

This should get you started: https://gist.github.com/fieldOfView/b24457b85c8464f15ca9c9dfeb0c7f36 Download the file, and place it in the definitions folder of your configuration folder (Help -> Show configuration folder). It inherits on the Ultimaker 2 definition. If this is an UM2+ instead, replace the two instances of "ultimaker2" with "ultimaker2_plus". For the larger build area, you can use the Machine Settings. You can also put it in the definition file, but I'll leave it to you to figure out exactly how.

There is no variable or replacement pattern for it. Technical details: the {replacement patterns} in the start- and end-gcode are replaced before the settings and geometry are sent from Cura (the "frontend") to CuraEngine (the "backend"). The total print time is not available at that time, because it has not yet been calculated. The total print time is added directly to the gcode by CuraEngine. You could use a postprocessing script to change the line that CuraEngine inserted into the gcode. See the Search & Replace script, and replace ";TIME:" with eg "M117 print time:". This will put the M117 before any other functional gcode. It is possible to write a custom postprocessing script that puts the line somewhere else, but some Python skills are needed

What you missed is that in 2016, Ultimaker started to rewrite all of Cura. Not all features were available right away, but most have returned by now (along with many, MANY new features). Unfortunately Ultimaker has lost interest in USB printing and especially manual control ("jogging") of the printer, so it is taking long for those features to return; they are contributed by external developers (like me). Extruder preheating and position jogging have only recently been reintroduced. Manual extrusion will too, eventually. For now, use other software like pronterface for manual extrusion, if your printer does not have an interface to do it directly. Not the answer you were hoping for, but the only answer I have for you.

When prime towers were still turned on by default for dual extrusion prints, there was a surprising number of support questions “why is there an additional box in layerview?” Also prime towers tended to topple over, at which point they could ruin a print.

Go to the Toolbox, see the Installed tab and find the USB Printing plugin. Disable it and restart.