Presentation made by Rodrigo Trespalacios on Montréal 3D Printing Meetup held at Concordia District 3

1. OctoPrint
Tutorial

2. What is OctoPrint?
● OctoPrint is a host software similar to
Printrun, Cura, Repetier Host or MakerWare.
● The host software controls the 3D printer by
sending it the commands necessary to do it’
s job.

3. How?
● Host software is run on a computer that is
connected to the Arduino/microcontroller
through a USB cable.
● Host software sends GCode files to the 3D
printer, one line at at time.

4. Why?
The ATmega328 chip found on the Uno:
Flash 32k bytes (of which .5k is used for the bootloader)
SRAM 2k bytes
EEPROM 1k byte
The ATmega2560 in the Mega2560 has larger memory space :
Flash 256k bytes (of which 8k is used for the bootloader)
SRAM 8k bytes
EEPROM 4k byte

5. Problem
● Computer must be tethered to computer
throughout the job.
● Inefficient. This is not computationally
intensive process. All it does is send a
couple of text lines at a time.

6. Solution: OctoPrint + Raspberry Pi

7. Advantages
● Using a Raspberry Pi, OctoPrint allows you
to untether your existing 3D printer from your
laptop or workstation and turn it into a WiFi
enabled one.

8. Installation

9. Installation
❏ The software is completely free and open
source.
❏ Go to octoprint.org and download OctoPi, an
SD card image that includes OctoPrint plus
everything needed to run it.
❏ Flash the image to your SD card (detailed
instructions are linked in the website).

10. Instructions
❏ Connect WiFi dongle and make sure the
Raspberry Pi is connected to the local WiFi.
❏ After booting up the Raspberry Pi, OctoPrint
should be available at http://octopi.local

11. Features

12. Real time monitoring.

13. Manual controls and webcam view.

14. Preview of the printer movements.

15. Terminal Tab