Octoprint

Description

Octoprint is software that runs on a Raspberry pi server, that allows you to connect to a 3D printer from a web page. Each printer (Octoprint server) has an address (at PS1, usually that's done with an IP address) that you load right into your browser (Chrome, Firefox, Safari, Internet Explorer, Mozilla, whatever) and control from there.

Servers

The OctoPrint servers for the Prusa i3 can be reached at

• http://10.100.1.202/ is the left Prusa as of December 4, 2018

• http://10.100.1.203/ is the "middle" Prusa as of December 4, 2018, and has a broken SD card reader. You must use Octoprint to print.

• The Prusa on the top shelf is not yet provided with an Octoprint server, but you may still use SD cards to print.

• The Taz had an Octoprint server, but the Taz is not working right now.

Connecting

• When connecting to the OctoPrint server, you may first need to select "Connect" under the left side Connection tab if the printer has been turned off.
  • All settings to connect are retained and should not be modified.
• Once the printer is connected, you can begin warming it up with the Temperature tab.
  • Enter a temperature in Celsius and click "Set"
• You can control the printer's movements and extrusion using the "Control" tab.

Printing

STL files

• To get started printing, upload an STL using the left side "Files" tab.
• Find the STL you uploaded and click the "Slice" button, it looks like a magic wand.
• From here, you can select what slicer engine you'd like to use and what settings you'd like to print with.
  • Cura is the default slicing engine.
  • Select one of the preset slicing profiles, and then manually set your preferred temperatures and speeds using the Basic and Advanced tabs.
• Now locate the newly generated GCO file (G-Code) in the left side Files tab. You can now click "Load and Print" to print your object.
• It is preferred if you delete your files from the OctoPrint server when you are done. You can download your GCO file for future printing if you would like to retain the specific sliced project.

Pre-slicing at a computer and loading Gcode

If you would prefer, you can use a desktop computer like one of the two along the southwest wall, to slice your models and prepare Cgode for transfer to the Octoprint server.

Further reading

This is only a high level overview of how to use OctoPrint. If you are already authorized but have not used OctoPrint, feel free to attend future authorization sessions. OctoPrint will accept g-code from the most popular slicers such as Cura, Slic3r, Repetier-Host, and Simplify3D.

• https://octoprint.org/
• https://www.youtube.com/watch?v=0RlPWxKhEvM Quick overview of the Octoprint web interface