Episode-75

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Listener Feedback

Very thorough feedback email from Jonas Rullo responding to 5150’s escapades with Octopi and Slic3r. Highlights:
Had trouble with 3D slicer programs, too

Seems to be a fan of Cura (actually the backend slicer to Octopi, though not all features are exposed)

But ultimately went with Slic3r after difficulties installing

Doesn’t recommend slicing directly with Octopi… advises slicing on the desktop and shipping the resulting gcode to Octopi (good network integration)

Raspberry Pi 2 is fast enough for Octopi. Probably not the Zero, though.

Recommends using a bit of a glue stick pre-applied on the bed since it isn’t heated. Also blue painter’s tape is worth trying

Followup:  5150 tried installing Slic3r and Cura on the Odroid U2, but they weren’t in the 14.04 repo (surprise).  He thinks the path of least resistance may be to put Octopi on the RPi 3 he has in hand and buy another for the Alexa/Mycroft/etc project.

Show Topics

FiftyOneFifty   
REGLUE still needs help.  This year’s fund raiser was very disappointing. Partial review of Fedora 25 workstation install.  Create logical partitions using Gparted?  My Magigoo came in the mail today, also picked up blue tape.  Also got blue tape.  Got the ingredients for home made Sugaroo earlier this week, but procrastinated on repairing headphones, so my can is still hanging loose.  https://www.packtpub.com/packt/offers/free-learning

Fweeb
New website for the Open Source Creative Podcast: http://opensourcecreative.org
Built using Hugo (http://gohugo.io)! I like static site generators!

HonkeyMagoo

Touchpad support on linux
synaptic
https://wiki.archlinux.org/index.php/Touchpad_Synaptics
Libinput
https://wiki.archlinux.org/index.php/Libinput
Libinput man page
https://www.mankier.com/4/libinput

Example of /etc/X11/xorg.conf.d/40-libinput.conf
Section “InputClass”
       Identifier      “SynPS/2 Synaptics TouchPad”
       Driver          “libinput”
       Option          “ScrollMethod” “edge”
       Option          “Tapping” “on”
       Option          “DisableWhileTyping” “on”
EndSection

Example of /etc/X11/xorg.conf.d/70-synaptics.conf
Section “InputClass”
Identifier “touchpad”
Driver “synaptics”
MatchIsTouchpad “on”
Option “TapButton1” “1”

       Option “HorizEdgeScroll” “on”
       Option “PalmDetect” “1”
Option “PalmMinWidth” “8”
Option “PalmMinZ” “100”

EndSection

Using SOX to trim audio files
How I pull out the pre show
sox -S raw_show.wav pre_show.wav trim 0 start_time

How I get the show file
sox -s raw_show.wav show.wav start_time

Now I just add the pre show to the end of the show
sox -S show.wav pre_show.wav sourceaudio.wav

Next recording date: April. 7, 2017