105 lines
2.9 KiB
Markdown
105 lines
2.9 KiB
Markdown
This document describes the process of running Klipper on a Beaglebone
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PRU.
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Building an OS image
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====================
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Start by installing the
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[latest Jessie IoT](https://beagleboard.org/latest-images) image
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(2017-03-19 or later). One may run the image from either a micro-SD
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card or from builtin eMMC. If using the eMMC, install it to eMMC now
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by following the instructions from the above link.
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Then ssh into the beaglebone machine (ssh debian@beaglebone --
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password is "temppwd") and install Klipper by running the following
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commands:
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```
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git clone https://github.com/KevinOConnor/klipper
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./klipper/scripts/install-beaglebone.sh
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```
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Install Octoprint
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=================
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One may then install Octoprint:
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```
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git clone https://github.com/foosel/OctoPrint.git
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cd OctoPrint/
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virtualenv venv
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./venv/bin/python setup.py install
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```
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And setup OctoPrint to start at bootup:
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```
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sudo cp ~/OctoPrint/scripts/octoprint.init /etc/init.d/octoprint
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sudo chmod +x /etc/init.d/octoprint
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sudo cp ~/OctoPrint/scripts/octoprint.default /etc/default/octoprint
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sudo update-rc.d octoprint defaults
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```
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It is necessary to modify OctoPrint's **/etc/default/octoprint**
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configuration file. One must change the OCTOPRINT_USER user to
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"debian", change NICELEVEL to 0, uncomment the BASEDIR, CONFIGFILE,
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and DAEMON settings and change the references from "/home/pi/" to
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"/home/debian/":
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```
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sudo nano /etc/default/octoprint
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```
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Then start the Octoprint service:
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```
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sudo systemctl start octoprint
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```
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Make sure the octoprint web server is accessible - it should be at:
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[http://beaglebone:5000/](http://beaglebone:5000/)
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Building the micro-controller code
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==================================
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To compile the Klipper micro-controller code, start by configuring it
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for the "Beaglebone PRU":
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```
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cd ~/klipper/
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make menuconfig
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```
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To build and install the new micro-controller code, run:
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```
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sudo service klipper stop
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make flash
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sudo service klipper start
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```
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It is also necessary to compile and install the micro-controller code
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for a Linux host process. Run "make menuconfig" a second time and
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configure it for a "Linux process":
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```
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make menuconfig
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```
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Then install this micro-controller code as well:
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```
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sudo service klipper stop
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make flash
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sudo service klipper start
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```
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Remaining configuration
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=======================
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Complete the installation by configuring Klipper and Octoprint
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following the instructions in
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[the main installation document](Installation.md#configuring-klipper).
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Printing on the Beaglebone
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==========================
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Unfortunately, the Beaglebone processor can sometimes struggle to run
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OctoPrint well. Print stalls have been known to occur on complex
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prints (the printer may move faster than OctoPrint can send movement
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commands). If this occurs, consider using the "virtual_sdcard" feature
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(see
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[config/example-extras.cfg](https://github.com/KevinOConnor/klipper/tree/master/config/example-extras.cfg)
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for details) to print directly from Klipper.
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