M Z st01c

Jekyll & Liquid Cheatsheet

A list of the most common functionalities in Jekyll (Liquid). You can use Jekyll with GitHub Pages, just make sure you are using the proper version.

Running

Running a local server for testing purposes:

Introductory readings for students on Open Source, Free Software and Hacker culture

Crowdsourced Non-Comprehensive List developed in response to a Facebook query by https://github.com/jeffthompson

Text suggestions from Michael Mandiberg, Allison Parrish, Jeff Thompson, GS Voss, Sterling Crispin, Lee Tusman, Lainie Fefferman, Michael Gubbels. Additional readings and suggestions, especially for perspectives from women and POC welcomed.

Open Source as Culture/Culture as Open Source - Siva Vaidhyanathan - pp 24 - 31 in The Social Media Reader - article in book
Programming is Forgetting: Toward a New Hacker Ethic - Allison Parrish - transcript of talk
A Hacker Manifesto - Mackenzie Wark - book
[In The Beginning Was The Command Line](https://github.com/mostlyb

Assembly

Assembly is straightforward but takes a while. Comes with all the tools you need. Everything is metric. I recommend labeling the screw packets before starting so you know which size is which.

I ended up tightening the drive belts after initial assembly, which is tough to do. I used vise grips to help. Do not overtighten the belts however, because it can cause strain on the servo motors.

I also added a couple washers (of my own) to the pen mechanism to reduce slop. On either side of the arm that raises / lowers the pen. If you do not add your own washers, you can also use the white plastic spacers that come with the plotter.

Ensure that the pivot screw that holds the drawing arm to the upper assembly is tight however. Horizontal slop will lead to impersice drawings.

Sonic Pi 2.2 at Bett 2015

This is a summary of a talk given at Bett 2015 on Sonic Pi

I started by playing excerpts from two programs, Scott Joplin Maple Leaf Rag, and a Percussion Generator, to illustrate different things Sonic Pi can do, and gave a brief description of Sonic Pi and the user interface, similar to section 1.2 of the built in tutorial, which is accessed by clicking the Help button.

I also showed how one of the example programs "Idm Breakout" could be copied and played. Then I used the following program sections to develop a code to play the round Frere Jaques

##Making sounds

	# -------------------------------------------
	# CRASH INTO SONIC PI!
	# Learn to code music in less than 30 minutes
	# -------------------------------------------
	# - download Sonic Pi from sonic-pi.net
	# - copy and paste these code snippets
	# - change and experiment with the snippets
	# - go!
	# -------------------------------------------
	# These snippets were made for a workshop to

	# based on https://vimeo.com/50061269 by Andrew Sorensen
	# refactored and clarified
	use_bpm 90
	use_synth :dsaw

	# five loops, each has a volume from 0 to 1
	volumes = [0, 0, 0, 0, 0]

	# play a pattern of <notes> with <amps>, with <time> between notes
	# use loop index <loop> for the note volumes

	# based on https://vimeo.com/50061269 by Andrew Sorensen
	use_bpm 90
	use_synth :dsaw

	loops = [0, 0, 0, 0, 0]

	define :pat do \|notes, amps, time, count, rel, loop\|
	with_fx :reverb do
	count.times do \|i\|
	play notes[i], amp: loops[loop]*rrand(amps[i]-0.05, amps[i]+0.05), release: rel