Want to get nozzle changing functionality on your Ultimaker 3?
3D Solex has developed the Hardcore print core for just that purpose.
You can use the enclosed 4 nozzles for a wider range of printing resolution on the Ultimaker 3. Load up the .25mm nozzle for higher resolution, load the .6 to print material with large fill like woodfill, or you can pair it up with the Everlast Sapphire tipped nozzle to allow you to print awesome abrasive materials.
This kit includes:
This is a great upgrade option for advanced / experimental users looking to get more capability out of their Ultimaker 3. It is not a good choice for beginners or multi-user systems. It is a third party accesory and requires a workflow outside of the normal easy Ultimaker 3 process. To change nozzles, you will be required to heat the core in the printer, then remove it hot, install into the nozzle changing fixture, and change nozzle. Further, the printer has no way of knowing what nozzle you have loaded, so you will need to keep track of that information and make sure it is manually entered into Cura.