ahoeben

You were asked if you wanted to uninstall the previous version; you were not forced.

This depends on what is set in the quality profiles for your printer. Anything defined in a quality profile or in the custom settings panel overrides what is set in the Materials preferences.

How long were you saying that you are using 3d printers again? And you still don't know that 3d printers are dumb? Joking aside, the UV screen is used to partially harden the resin in specific places (layer by layer). The resin is a gloopy mess, and after the print is done the print itself is hardened just enough that you can handle it and "rinse off" the (again: gloopy) extra resin that is all around it. You can't cure the object without first removing the extra gloop because the gloop will cure with the model. You also cannot fully cure the object while it is being printed, because that would start to cure the gloop around the model too. In theory, you could remove the model from the printer after printing, rinse off the extra gloop and the put the model back into the printer to cure using the "uv screen". However, the freshly printed model would still be sticky, and it could easily stick to the printer while curing. The UV light would also be very unidirectional, so the model would not cure evenly, causing warping. Resin printing really is more involved than fdm printing. Sticky too.

I have resubmitted that plugin for inclusion in the Marketplace. I have changed the function to disable all non-generic materials to leave your custom materials in peace, so it will only remove those predefined brands (unless they are used by a currently configured printer).

Neither will I because you still don’t say what error(s) you get so I still cannot help you. Ultimaker Cura has no wizard that can automatically upgrade a version of Cura to 4.0. So I don’t know what you mean there either.

A checkmark or "bullet" in front of the menuitem could be nice, but Cura does not support that for the Extensions menu. Other than that, I'm not sure how such an indicator would look. It is probably a good idea to put something in the logs about not loading that many containers though.

@DivingDuck, your issue should be fixed in this version. Update: Use the version in the Marketplace instead! The configuration should no longer get corrupted by my plugin. Even better, if your Cura configuration was "corrupt", applying the optimization should uncorrupt it. Finally if the configuration ever gets corrupted because of another reason, the plugin now adds a second button which lets you remove just the affected files instead of nuking the whole configuration:

An issue was identified. It needs fixing.

You could try reducing the Wall Line Count, so more of the model is printed as infill. But yeah, 3d printing large objects takes long.

A workaround is to duplicate and arrange the model in a 3d package, and load that into Cura as a single model.

Try if Cura works with only a single display. If so, you can go to the preferences, and uncheck the option to "Restore window position on start".

... and many others for printers supporting 1.75 mm filament diameter. No, there is currently no way to delete some of those, unless you want to remove files from the /resources/materials folder in the application bundle (which I recommend you don't). I am working on a plugin that will let you disable all non-generic materials: https://community.ultimaker.com/topic/32126-cura-startup-optimiser-plugin-needs-testers/

No, the current release in the Marketplace (4.0.8) is compatible with Cura 4.6. The view options box is now collapsible too.

What version of Cura is this, and what error do you get? We can't read your mind. Have you considered asking Monoprice for assistance?

Cur 4.5 can be downloaded here: https://github.com/Ultimaker/Cura/releases/tag/4.5.0

That is because you have an Ultimaker 2. With the UM2, the idea is that you select the material on the printer, not in Cura. If you want Cura to override what material is selected on the printer, and thus select materials in Cura, go to the Printers pane of the preferences, press Machine Settings, and change the G-Code flavor to Marlin (instead of Ultimaker 2).

Can you try "Activating" one of the other printers using the Activate button? Do the other printers have "Machine Setting" button once they are activated?

Thanks for the feedback. I'll see if I can work around "lingering" configuration files like that. 10 seconds is a nice speedup though, and it is good to know restoring did that: restore to a working setup.

The Ultimaker 2 and Ultimaker 2 Extended never had materials in Cura by default. This was by design. The Ultimaker 2 introduced the concept of UltiGCode, where you would be able to slice once and print in "any material" selected on the printer. So not having materials available in Cura for these printers is intended as a feature, it is not a bug. At the time, "any material" was mostly just PLA and ABS. Apart from some temperature and cooling (fan) differences, you pretty much use the same gcode files for those materials. The printer would change those settings on the fly. Since then though, Ultimaker has come to the realisation that to really support different materials, you need to slice with different parameters. So with the Ultimaker 2+ and newer, they made it possible to select materials in Cura again. But the feature not to have materials for the Ultimaker 2 has not changed. Note that the Ultimaker 2+ still will not let you change temperatures by default, because you are still supposed to select a material on the printer. I think that is a rather silly situation. It has always been possible to change the gcode flavor from UltiGCode (labeled "Ultimaker 2" in Cura) to Marlin to remove this feature and restore selecting materials for the Ultimaker 2 in Cura.

Could you say what the benefit of this (much more involved) second solution is?

Thanks for the endorsement of my plugin, but it will not do anything for @Anarasha's case. It will only let you quickly toggle the automatic slicing on or off. The Cura developers have hinted on more than one occasion that the arrange models functionality is high on the list of things to rework/improve. Let's hope that it becomes a LOT faster, so that canceling is not even necessary. But having a cancel button there would be better.

You can disable the USB Printing part of Cura and it will no longer touch your USB ports. * Go to "Marketplace" * Go to the "Installed" tab * Scroll down to "USB Printing" * Uncheck the checkbox in front of it * Restart Cura

There is none.

MeshTools already checks meshes as they are loaded. It is not necessary to check them again, unless you want to check if the "Fix simple holes" function managed to get the model manifold.

@jeson, your model is actually 2 models grouped together. Select the group, right-click and select "Ungroup models". Then click on the inside of the cilinder (selecting one of the 2 models) and either move it out of the way or delete it.