Archive of Talks

Electronics 101

Posted by Paul Campbell on June 01, 2013 in Talks tagged with

I've included here the electronics1 talk I gave this week as a PDF Remember the simple takeaways from this talk: - the relationship between voltage, current and resistance - in particular bigger resistors mean less current - capacitors pass AC and block DC - inductors block AC and pass DC - bipolar tranistors control a large amount of current with a small amount of current - FET transistors control a large amount of current with a voltage Please go and play with the excellent circuit simulator at: http://www.falstad.com/circuit/e-index.html try playing with resisto

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Fab8NZ Un-Conference and Academic Symposium

Posted by Reece Arnott on September 27, 2012 in Talks tagged with

Here are the Fab8nz conference talk slides that I used for the talk I just gave. Included in these slides are three video clips that can be found on YouTube: - The KamerMaker Grand Opening with a first print of their 2x2x3.4m 3D printer is here. - The making of the conductive ink for a ballpoint pen is here. - The Solar Sinter video is here. There are also a number of other resources that are also mentioned: - Vik Ollivers website where he has blogged about some of his techniques for constructing the "fiddly bits" of a Reprap extruder. - The FabLab Store where you can buy the

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Anaglyphs!

Posted by Brian Paavo on August 30, 2012 in Talks tagged with , , ,

We spent tonight doing a guided build.  We had two goals: 1) Learn how to take 3D pictures with one camera and the open source GIMP software. 2) Make our own funky anaglyphic glasses using Lee colour filters 026 (bright red) and 354 (special steel blue) and paper, cardboard, cheap sunglasses, or our Reprap printer!   Step-by-step instructions are here -> AnaglyphsPDF .  GIMP software is available here -> www.gimp.org

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ShapeOko Toolchain and Impressions

Posted by Brian Paavo on August 11, 2012 in Talks tagged with , ,

G'day everyone.  Thank you for your kind attention during Thursday's (9 August 2012) presention on my initial playtime with Paul's Shapeoko CNC router.  Paul encourages people to use the router (with care) to MAKE! As requested, I have posted the presentation slides here.  Too late to include in the presentation, but cool tools for CNC folks to use include the OpenScam toolpath visualistion tool at http://openscam.com/ and the ubercool half-tone application that MetalFusion made to convert grayscale images into .dxf and Gcode files so that you can engrave photos into materials with a con

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Octacon – How long until we have Star Trek Replicators

Posted by Reece Arnott on May 25, 2012 in Talks tagged with

This is a page where I have collected together all the links for a talk at a small conference over Queens Birthday weekend 2012. The following text is the text I based the talk on. If I had gone through everything it would have probably been a 2 hour talk before even getting to the discussion at the end! Firstly, if you are new the whole 'makers' movement and are a sci-fi buff, check out Makers by Cory Doctorow, available in lots of different electronic formats for free. The handout is available as odt and pdf. The slideshow is available as odp and pdf. This talk is in four parts.

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Talk: Beginning electronics courses

Posted by Paul Campbell on August 19, 2011 in Talks tagged with ,

I've started giving a series of basic electronics courses at Makerspace - these are aimed at everyone including complete beginners - I'm avoiding maths as much as possible, the idea is to get an understanding of what's going on in a circuit without getting bogged down in the details - your goal should be to be able to look at a schematic, ask yourself  "what's that thing for?" and be able to make a reasonable guess I'm making heavy use of the excellent circuit simulations at http://www.falstad.com/circuit/e-index.html - your browser will need java enabled to use them. The first session

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Talk: 3D photocopier

Posted by Reece Arnott on August 15, 2011 in Talks tagged with , ,

I've finally uploaded the PDF of the slides I was using. Note the static image on the page about how the Microsoft Kinect gets depth information from the changes in how the dots are perturbed by objects. This was originally an animated gif. You can go to the original source for that if you like. Click here for the original blog post I got this animated gif from.

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Talk: OpenWRT

Posted by Micheal Hamel on August 08, 2011 in Talks tagged with , , , ,

OpenWRT: thats an odd name... The story starts late 2002 when Linksys released a wireless router called the WRT54G. Andrew Miklas noticed (from the visible names used in the internal filesystem, amongst other things) that it was using Linux, without in any way acknowledging this or making the source available. They had obvioulsy modified Linux to get it to run on their hardware. This is a violation of the Linux license, the GPL. He tried contacting Linksys who weren't immediately co-operative, so he posted to the Linux Kernel mailing list and Linksys came under considerable pressure to r

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Talk: 3D printing

Posted by Paul Campbell on June 12, 2011 in Talks tagged with , ,

Here's some references from the 3D printing talk: First of all Thingiverse where you can find 1000s of things to build and make http://www.thingiverse.com/ ---------------------------------------------------------------- The "reprap host" slicing application can be downloaded from reprap.org http://www.reprap.org/wiki/Installing_RepRap_on_your_computer you'll need a working Java runtime to use it. You need to download the config file for our working reprap from: http://www.taniwha.com/~paul/reprap.properties install it in ~/.reprap (or wherever else reprap host stores s

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Talk: Adding hardware to Arduinos

Posted by Paul Campbell on May 03, 2011 in Talks tagged with , , ,

I've uploaded my talk from last week about adding hardware to Arduinos - here's the slides as PDF.   Here's the promised link for  buying L298 H-bridges in NZ: L298

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