User talk:Msemtd: Difference between revisions

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Quick jump to full index of the wiki: http://wiki.nottinghack.org.uk/wiki/Special:AllPages
Small off-grid for the garden...
http://www.instructables.com/id/Cardboard-Savonius-turbine/
Plus the solar rig built at hackspace.
Project Plans: -
Project Plans: -


Line 10: Line 18:
*** welding and metalwork
*** welding and metalwork
*** circuit design and etch-tank
*** circuit design and etch-tank
* Workshop: [[Electronics From Scratch is Easy]] - a Nottingham Hackspace geek's introduction to electronics and why you can do it!


* skateboard wheel lathe
* machining
** Totally ghetto - easily done: [http://www.silverfishlongboarding.com/forum/longboard-skateboarding-wheels-bearings/119441-cheap-diy-wheel-lathe-community-design-project-2.html#post1297838405 silverfishlongboarding forum post]
 
** http://opensourcemachine.org/
** http://opensourcemachine.org/
** http://opensourcemachine.org/wp-content/uploads/2008/10/how_to_build_a_multimachine1.pdf
** http://opensourcemachine.org/wp-content/uploads/2008/10/how_to_build_a_multimachine1.pdf
Line 19: Line 26:
* shoe repair - glues, heavy duty sewing, sugru, bicycle tyres
* shoe repair - glues, heavy duty sewing, sugru, bicycle tyres
* put wheels on things!
* put wheels on things!
* put faces on things!
* [[Inappropriate Technology]]
* [[Inappropriate Technology]]
* bike trailer
* bike trailer
Line 68: Line 76:


* Weigh components!
* Weigh components!
* New base, direct motor wheel connections with Pololu hubs and laser cut wheels, new alu motor brackets
* New base, new alu motor brackets
* Motors: test drive commands with PWM enable line - power from AA batt pack
* Motors: test drive commands with PWM enable line - power from AA batt pack
* test MICRO LED  
* test MICRO LED  
Line 86: Line 94:
* Work on the IRC module
* Work on the IRC module
* ad-hoc commands using bean method introspection or BeanShell scripts
* ad-hoc commands using bean method introspection or BeanShell scripts


http://www.vagrearg.org/?p=decoupling
http://www.vagrearg.org/?p=decoupling
Line 95: Line 102:
* EDF protocol
* EDF protocol


Lathe
Lie bot (http://www.achewood.com/index.php?date=10242001)
* basic manual operation
* wheels
* 22mm mounting (wood?)


== Joule Thief ==
== Joule Thief ==
* http://blog.makezine.com/archive/2007/11/make-a-joule-thief-weeken-1.html
* http://blog.makezine.com/archive/2007/11/make-a-joule-thief-weeken-1.html
* http://cachefly.oreilly.com/make/wp_joule_thief.pdf
* 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...
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
* https://www.futurlec.com/Datasheet/Transistor/2N3704.pdf
Line 108: Line 113:
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.
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. Plan a build.
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 [http://products.semelab-tt.com/pdf/bipolar/BCY70_71_72.pdf PDF]
* 2N4123 in a TO-92 plastic package [http://www.datasheetcatalog.org/datasheet/fairchild/2N4123.pdf PDF]
* 2N2222A in a TO18 can [http://docs-europe.electrocomponents.com/webdocs/0098/0900766b80098906.pdf 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!
 
== 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
 
== EGA displays ==
 
http://www.cadesigns.co.uk/video.htm
 
== Tattooing Skill Share ==
 
* workshop to fit the level of the attendees
* touch on the theory, science, history, cultural significance, of skin marking
* no humans will be tattooed!
** bring a grapefruit or thin-skinned orange - this will be our "customer"
** this will free us to concentrate on the mechanics
** removes the need for a massive portion of the essential education in tattooing: steralisation
** touch on cross-contamination
* modern tattooing in a "shop" environment
* the Huck Spalding book
* inks, pigments
* needle groupings for lining, shading, fine-line, special effects, etc.
** laying in the colour
* skin normalisation and stretching
* healing and scarring
 
== Festivus 2014 ==
 
* Magpie Best ale ordered from Bob Douglas 05-12-2014
* David Clarke kindly collected from the brewery (paid from Hackspace cash)
* cash to be collected from pledge and paid into Hackspace account
 
{| class="wikitable"
|-
! Who
! How Much
! Paid
! Method Paid
! Drunk?
|-
| Michael E || £10 || Y || Cash to Michael (hold on, how does this work?) || gimme a minute
|-
| Mouse || £10 || Y || Cash to Michael || Not Yet
|-
| Spencer Owen || £10 || || ||
|-
| Chelim Yrneh (Michel) || £5 || || ||
|-
| Dominic || £20 || Y || BACS ||
|-
| Ian Dickinson|| £10 || Y ||  Cash to Michael (16/12/2014) ||
|-
| Chunky || £10 || Y || Cash to Michael (16/12/2014) ||
|}
{{#widget:PledgeTracker}}
 
== Tools Info ==
 
One day in Jan 2016 an enthusiastic brand new member was working on a project and asked me how I would cut something accurately. We had a talk about the options and we looked at the bandsaws one by one - they were all out of order. I tried to find out about the various statuses online and where I could find/get spare blades
The wiki tool lists are out of date (understandably!) and not maintained (e.g. [[Tools/We_Have]] has no mention of 4 of our bandsaws) - searches find lots of old pages that nobody needs.
 
What people want to see is a live status page for the major fixed-down tools - the tools team can keep this reviewed and up to date. For reporting problems, I'd like to see a quick means that doesn't need a computer: -
* Have a physical rfid box with say 6 buttons on it.
* Member scans Rfid and presses button for broken tool.
* Magic happens and tools team is informed via slack.
* Member can be emailed for more information
* Website hms tool status page is magically updated with red cross against tool
* Github issue is magically opened to track the problem
 
== Bandsaws ==
 
* Big green Startrite - in metalwork area - massive! - [[Startrite_Bandsaw]] - [[Startrite_metal_bandsaw_pledge]]
* big other Startrite just outside dusty area - no info
* Fox in dusty area [[Fox_Bandsaw]] - page says pledge in progress
* Yellow Schneider SCH190 [[Benchtop_Bandsaw]]
 
== Badges for No Ditching ==
<gallery>
No-ditching.png
</gallery>
* Artwork
* Badgemaker guides http://www.buttons.co.uk/artwork-guide/
 
== Public ==
 
https://www.dropbox.com/sh/keaj0gmemxe7dbl/AAAKzgKkmJ4kGVAWOdQbQPzga?dl=0
 
== public ==
 
 
https://drive.google.com/file/d/0B8K9pfCIv4udMkZwZ0ZjQ19MdTA/view?usp=drivesdk

Latest revision as of 15:15, 24 December 2016

Quick jump to full index of the wiki: http://wiki.nottinghack.org.uk/wiki/Special:AllPages

Small off-grid for the garden...

http://www.instructables.com/id/Cardboard-Savonius-turbine/

Plus the solar rig built at hackspace.

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 Nottingham Hackspace geek's introduction to electronics and why you can do it!

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: -

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

Lie bot (http://www.achewood.com/index.php?date=10242001)

Joule Thief

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

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!

Vikay LCD module

Also other LCD and VFD displays


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

EGA displays

http://www.cadesigns.co.uk/video.htm

Tattooing Skill Share

  • workshop to fit the level of the attendees
  • touch on the theory, science, history, cultural significance, of skin marking
  • no humans will be tattooed!
    • bring a grapefruit or thin-skinned orange - this will be our "customer"
    • this will free us to concentrate on the mechanics
    • removes the need for a massive portion of the essential education in tattooing: steralisation
    • touch on cross-contamination
  • modern tattooing in a "shop" environment
  • the Huck Spalding book
  • inks, pigments
  • needle groupings for lining, shading, fine-line, special effects, etc.
    • laying in the colour
  • skin normalisation and stretching
  • healing and scarring

Festivus 2014

  • Magpie Best ale ordered from Bob Douglas 05-12-2014
  • David Clarke kindly collected from the brewery (paid from Hackspace cash)
  • cash to be collected from pledge and paid into Hackspace account
Who How Much Paid Method Paid Drunk?
Michael E £10 Y Cash to Michael (hold on, how does this work?) gimme a minute
Mouse £10 Y Cash to Michael Not Yet
Spencer Owen £10
Chelim Yrneh (Michel) £5
Dominic £20 Y BACS
Ian Dickinson £10 Y Cash to Michael (16/12/2014)
Chunky £10 Y Cash to Michael (16/12/2014)

Tools Info

One day in Jan 2016 an enthusiastic brand new member was working on a project and asked me how I would cut something accurately. We had a talk about the options and we looked at the bandsaws one by one - they were all out of order. I tried to find out about the various statuses online and where I could find/get spare blades The wiki tool lists are out of date (understandably!) and not maintained (e.g. Tools/We_Have has no mention of 4 of our bandsaws) - searches find lots of old pages that nobody needs.

What people want to see is a live status page for the major fixed-down tools - the tools team can keep this reviewed and up to date. For reporting problems, I'd like to see a quick means that doesn't need a computer: -

  • Have a physical rfid box with say 6 buttons on it.
  • Member scans Rfid and presses button for broken tool.
  • Magic happens and tools team is informed via slack.
  • Member can be emailed for more information
  • Website hms tool status page is magically updated with red cross against tool
  • Github issue is magically opened to track the problem

Bandsaws

Badges for No Ditching

Public

https://www.dropbox.com/sh/keaj0gmemxe7dbl/AAAKzgKkmJ4kGVAWOdQbQPzga?dl=0

public

https://drive.google.com/file/d/0B8K9pfCIv4udMkZwZ0ZjQ19MdTA/view?usp=drivesdk

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