At Layer Zero we have a Creality Ender-3 S1 for use by members and visitors alike.

## Step-by-step printing process

### 1. acquire 3D model(s)
You can find loads of free designs on [[https://printables.com | Printables]] and [[https://thingiverse.com | Thingiverse]] for example, or you can model something yourself with CAD software.

### 2. slice the model(s)
A slicer is a program that will take a 3D model and convert it into instructions for the printer to build it up in layers. It has a lot of settings you can tweak and will sometimes take some trial and error to get something to print successfully, but usually the default settings will suffice. Make sure to look in the model's description and comments (if you downloaded it from somewhere) for recommended settings.

`printstation` should have [[https://ultimaker.com/software/ultimaker-cura | Ultimaker Cura]] and [[https://www.prusa3d.com/page/prusaslicer_424/ | PrusaSlicer]] installed on it, but you can also do this step from your own computer.

### 3. prepare the printer
Turn the printer on. It has an automatic bed leveling routine that you must start from the printer's control panel. You should do this every time to avoid ruining the print bed.

### 4. send it to octoprint
Octoprint is a program running on `printstation` that talks directly to the printer and feeds it instructions while monitoring all of its sensors. The slicers on `printstation` are set up to be able to upload files directly to it. Octoprint is not itself a slicer.

Ensure Octoprint is connected to the printer in the top left section. If everything looks good you can print the model from the "Files" section below it.

### 5. finishing up
When the print is done, pick up the magnetic build plate and flex it to remove your print, *including the excess bits (skirts, rafts, supports, etc.)*. Turn the 3D printer off to save power.


## Filament
We have some filament available and you can also bring your own. It must be **1.75mm** in diameter. To change it out:
*. raise the Z axis in Octoprint
*. heat the nozzle to the recommended temperature
*. pull out the old filament while disengaging the extruder with your other hand
*. feed in the new filament the same way, all the way into the nozzle
*. extrude as much through the nozzle as you need until the old filament is completely purged. remember to pick up the excess.