User talk:Msemtd

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Project Plans: -

• achievement awards for hackers
  • gentle path for acquiring skills
  • "You have unlocked a new achievement"
  • badges, certificates, icons!
    • laser induction
    • woodworking tools induction
    • sewing/knitting machine
    • welding and metalwork
    • circuit design and etch-tank
• workshop: electronics from scratch is easy - a geek's introduction to electronics and why you can do it!

• machining
  • http://opensourcemachine.org/
  • http://opensourcemachine.org/wp-content/uploads/2008/10/how_to_build_a_multimachine1.pdf
  • http://www.instructables.com/id/Make-your-own-Lathe-from-other-peoples-rubbish/
• shoe repair - glues, heavy duty sewing, sugru, bicycle tyres
• put wheels on things!
• put faces on things!
• Inappropriate Technology
• bike trailer
• car trailer
  • like the ones my dad made
  • steel angle from bed frames
  • indespension units for wheels
    • http://www.indespension.co.uk/b2c/app/I00660?ZSUBCO=033&Z1MACO=181&PGMN35=005&slnk=1
    • I think these original Mini ones are the thing: http://www.indespension.co.uk/b2c/app/I00080?PNUM35=SH012&slnk=1
• submarine
• ERTs
  • http://www.gai-tronics.org.uk/products/ert.htm
  • stick a PC at the base of each and tap into its serial comms
  • build a SIP phone from one end of the HackSpace to the other with the two phones perhaps mounted outside the front and back doors!

Fabrication - object printing

• T-shirt printing
  • Culture references
  • "Outside Context Problem"
  • "Special Circumstances"
  • "I can't believe it's not better"
• Laser cutting
• CNC machine
  • MyDIYCNC
  • Martin's CNC machine
• 3d Printing with RepReap
• just laser printing
• circuit board etching

First use of laser cutter: -

• Veralite board 3 dingdongs of the power dial and speed of? melty
  • http://www.edplastics.co.uk/Veralite%20PETG.htm
  • http://www.edplastics.co.uk/Verlite%20-%20Lasercutting.pdf

IRC Bots

http://www.jibble.org/pircbot.php

Various AI

Logging and statting

Who's in web indicator

Hackspace is ON/OFF web indicator

TODO

• Weigh components!
• New base, new alu motor brackets
• Motors: test drive commands with PWM enable line - power from AA batt pack
• test MICRO LED
• volume control from command line sudo /etc/acpi/voldownbtn.sh ??
• shutdown eeePC from command line "sudo shutdown now"
• IP publish with wget
• http://en.wikipedia.org/wiki/Situation_calculus
• test voice recognition
• new Java code on eeepc: add Mapping class
  • choose a grid size and calculate the requirements for navigating the Hackspace - could do dynamic map and discovery
  • "Unexpected item in the bagging area"
  • "Somebody move this wall"
  • "Somebody move this person" (PIR detection required)
  • http://www.societyofrobots.com/programming_wavefront.shtml

• When no goal start mapping the room
• Work on the IRC module
• ad-hoc commands using bean method introspection or BeanShell scripts

http://www.vagrearg.org/?p=decoupling

LED NTI board

• http://www.data-display.com/railway-platform-display
• triangular key
• EDF protocol

Joule Thief

• http://blog.makezine.com/archive/2007/11/make-a-joule-thief-weeken-1.html
• http://cachefly.oreilly.com/make/wp_joule_thief.pdf
• http://www.evilmadscientist.com/article.php/joulethief

I have a 2N3704 transistor (rather than a 2N3904) so the Base, Collector, and Emitter of this NPN are in different locations...

• https://www.futurlec.com/Datasheet/Transistor/2N3704.pdf
• http://en.wikipedia.org/wiki/Bipolar_junction_transistor#NPN

I also have a regular 2xAA battery holder which somebody has hacked and is slightly melted on one side! I will use this as a single AA battery holder. So my toroid centre tap goes to battery +ve.

Project first build complete (with on/off switch) - upload pictures to the various feeds.

There's now a Joule Thief workshop!

Plan a multiple build with the various found components. I cracked open the ballast electronics of a broken CFL (Compact Fluorescent Lamp - an energy saving light bulb) to get at the ferrite and NPN transistor that live in there! I got a nice-sized ferrite toroid and an MJE13001 NPN transistor (these things seem to be in most CFLs).

I wound the ferrite toroid with a pair of fine wires stripped from a PC CD drive audio cable and managed to get 7 winds neatly in there.

BTW: here's a good write-up on CFL electronics: http://www.pavouk.org/hw/lamp/en_index.html

My random NPN transistors: -

• BCY71 in a TO18 can PDF
• 2N4123 in a TO-92 plastic package PDF
• 2N2222A in a TO18 can PDF

Battery casings: -

• light-up Santa - lots of room inside - primed for hilarity
• Quartz clock - small and handy - shall do this one first
• plain 2x AA battery holder - boring - done that!

Stairway lighting

Sign: -

Don't get left in the dark!

The stair lighting automatically switches off after a while so...

Press the button before you go up or down the stairs (so you don't get stuck half-way!)

Vikay LCD module

Also other LCD and VFD displays

• 2224STLDYGBN
• http://www.shopeio.com/inventory/details.asp?id=958&x=Vikay%202224STLDYGBN-S
• http://www.shopeio.com/inventory/pdf/VK2224.pdf
• 16 pins
• same as the one on Cheesoid?
• http://arduino.cc/playground/Code/LCD
• http://www.arduino.cc/en/Reference/LiquidCrystal

DONE IS THE ENGINE OF MORE

Dominic's catch phrase!

• but DONE is not well defined!
  • I prefer DONE RIGHT!
    • but DONE RIGHT is not well defined!
• but MORE is not well defined!
  • MORE stuff to do? MORE problems?
• I don't think this works or me!
  • but WORKS is not well defined!
• ad-nausium...

As a phrase I just wasn't getting this at all - it only made sense if you already know what's behind it.

JFGI: http://www.brepettis.com/blog/2009/3/3/the-cult-of-done-manifesto.html