> For the complete documentation index, see [llms.txt](https://tools.desmoinesmaker.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tools.desmoinesmaker.space/tool-areas/3d-printing/coreone-hf.md).

# CoreOne (HF)

## About

<figure><img src="/files/TC5ytfj6Dzz9cuFKHywE" alt=""><figcaption></figcaption></figure>

## Slicing

We use [PrusaSlicer](https://www.prusa3d.com/prusaslicer/) and the built-in profiles for this machine. The [Prusa Knowledge Base](https://help.prusa3d.com/en/category/prusaslicer_204) has additional information on configuration settings and advanced use.

## Prusa Connect and PrusaLink

[Prusa Connect and PrusaLink](https://help.prusa3d.com/article/prusa-connect-and-prusalink-explained_302608) are wireless options for saving and printing to the Prusa printers at Area 515. PrusaLink is a local network solution for loading and printing wirelessly and each printer has its local IP address and login information posted in the space. Members get access to the local network at Area 515 when they join. Prusa Connect is a full cloud suite which requires members create a prusa3d account and get invited to Area 515's team; this is completed during training.

### Saving to USB

MK4 and newer printers use USB storage instead of SD cards. Members can use the USB if they prefer sneakernet.

{% hint style="info" %}
Please save your files in a folder named after you. Orphaned files may be removed.

Feel free to add sub-folders to your folder as needed.
{% endhint %}

## Use

### Operation

The LCD menus are easy to navigate on this printer, and it does most of the work for you. Clicking the encoder wheel in will get you into the menu from the status screen, and rotating it will allow you to navigate the menus. The screens on MK4 and newer are also touch-screens.

### Build Plate

Always consult the [filament material guide](https://help.prusa3d.com/filament-material-guide) to know which sheet to use with which filament. There are printed guides at the space stacked with the build-plate holder. Using the incorrect filament will permanently damage the sheet.

### Abrasive Materials

Abrasive materials, such as filaments with carbon fiber or glow-in-the-dark additives must only be printed on a printer with a hardened nozzle. Get permission from a steward before printing abrasive materials.

### Changing Filament

If filament from someone else is currently loaded, navigate to the unload filament option, then select the type of filament you will be loading. Follow the remaining instructions on the controller to complete the unload.

If the printer is empty, navigate to load filament and choose the type of filament you wish to load. The printer will prompt for the filament to be inserted. Insert the filament and follow the on-screen prompts for loading and purging.

### Enclosure

The Core One's enclosure allows for printing filaments which require high temperatures and an enclosure. The enclosure is not actively heated, but it can only maintain around 45-50 degrees Celsius. Ensure the top vent is closed for materials which require a heated chamber. Ensure the vent is open for PLA.

## Troubleshooting

### Poor Bed Adhesion

Typically when there is poor bed adhesion, this means the build plate is dirty. The likely culprit is finger oils from handling the plate and removing prints. The most effective way to solve this with smooth and textured PEI plates is by washing and scrubbing in the sink with dish soap. Make sure to fully dry the plate before returning it to the printer, and be careful to not get any contaminants on it after washing.

With textured PEI specifically, a thin coating of PVA glue (disappearing purple works well) is generally required for most materials. The most consistent way to apply this is by spreading several streaks over the surface, not too thick, and then, using a wet paper towel, evenly distributing the glue over the whole surface. The glue will lather slightly, becoming slightly white and opaque, before drying clear. This coating typically lasts at least a month's worth of printing if kept clean.

### Failed prints

The high flow nozzle and core X-Y motion is designed for modern filaments with additives and temperatures which allow for fast printing at high volume. If you do not have a high flow filament and are having trouble with failed prints use the Structural profile, reduce max volumetric rate, and reduce temperature to the lower range of the filament. Ask a tool steward for help if prints continue to fail.