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886  Forum 2005-2010 (read only) / Bar Sport / Re: Book Recommendation on: September 20, 2010, 07:56:57 am
UltraMagnus, Sorry you didn't like it.

I may regret this, but anyone else out there bought it?

If so, what did you think?
887  Forum 2005-2010 (read only) / Bar Sport / Re: Book Recommendation on: September 18, 2010, 10:33:02 am
Yeah - sorry - both smiley

This forum's dead threads are still a great resource for people.
888  Forum 2005-2010 (read only) / Bar Sport / Re: Book Recommendation on: September 18, 2010, 10:12:20 am
30 Arduino Projects for the Evil Genius. by Simon Monk.

http://www.arduinoevilgenius.com

But I am biased.
889  Forum 2005-2010 (read only) / Bar Sport / Re: Tip for newbies: flowchart your ideas on: September 13, 2010, 04:45:52 pm
Flowcharting, how quaint!

I love hearing electronic engineers talk about programming smiley-wink

Actually for the few dozen lines of code you can squeeze into an Arduino, its fine. Minimal quantities of classes, and no multiple threads of execution to worry about (apart from the occasional interrupt).

Its a useful way of expressing thoughts, other useful ways that 'real' software engineers use are: state diagrams, sequence diagrams and use cases. Have a look at UML for lots of other nice thinking tools.

Can I feel the flames flickering around my feet?
890  Forum 2005-2010 (read only) / Bar Sport / Re: Real light sabre on: September 11, 2010, 05:59:05 pm
Sock and antenna is good, because the sock could be blown out quickly, while a short delay for posing would allow the antenna to catch up and provide rigidity.

Or,

How about this - instead of a cloth 'sock' how about one made of thin polythene, blown out under pressure.

However, the slightest puncture could lead to a certain lack of rigidity, and the last thing any Jedi wants is a limp light sabre.

I may have gone too far here..
891  Forum 2005-2010 (read only) / Bar Sport / Re: Real light sabre on: September 11, 2010, 05:41:59 pm
Maybe an electric car antenna, with a disk on the end with a circle of narrow angle LEDs (or laser modules) facing back towards the handle.

You'd still need a a smoke machine to see it though. But that would allow for 'boffering'
892  Forum 2005-2010 (read only) / Bar Sport / Re: Real light sabre on: September 11, 2010, 04:02:58 pm
I like the fan and cloth idea. The fan could reverse to suck it back in ! Schwuuup.
893  Forum 2005-2010 (read only) / Bar Sport / Real light sabre on: September 11, 2010, 11:21:23 am
The holy Grail of toys has to be the 'real' light sabre.
How could such a thing be made?

Lasers are no good because they don't just come to a halt after a few feet, and they are difficult to see unless you have a smoke machine.

Some kind of jet of hot gas or plasma might work, but may be a bit too realistic and incendiary.

Something that would give the turning on effect of appearing from the handle would be great!

Any ideas! There must be some pre-cgi special effect way of doing it.
894  Forum 2005-2010 (read only) / Bar Sport / Re: Just For The Heck Of It (Maybe A Future Project) on: September 13, 2010, 09:35:40 am
You might be able to use one of those motors for pointing satellite dishes in different directions.

Sensing that the TV is on, you could experiment with a little wire antenna on a floating analog input.

I would expect the TV to emit a lot more electrical noise when it's on than when its off.
895  Forum 2005-2010 (read only) / Bar Sport / Re: mm verses inches on: August 22, 2010, 03:50:50 pm
Thanks everyone, thats actually a real help.

Sounds like the US is more like the UK than I thought with using both systems.

Its too late for the 30 Arduino Projects for the Evil Genius. In that I mostly did inches with mm in brackets after it.

But for the sequel (the book I was referring to), I don't think I'll worry as much about it. I think perhaps mm for drill bits, LEDs, anything kind of scientific or requiring a degree of accuracy and inches with cm in backets for dimensions of wood and box sizes etc.

It kind of sounds like most of you would be more or less ok with that.
896  Forum 2005-2010 (read only) / Bar Sport / mm verses inches on: August 22, 2010, 10:28:04 am
Hi, I'm writing a book for the American market, and my understanding is that you guys don't really use the metric system.

In the UK, we kind of use both in everyday life, in a mad sort of mixture. We buy petrol (gas) in Litres, but we buy drain pipes and wood mostly by the foot and cloth by the yard.

Anything technical is likely to be in metric units. So drill bits etc are in mm.

I have a question for you Americans. To what extent do you use mm. Do I have to convert every measurement into mm and ounces, or are you happy seeing things in a book in mm and grams?
897  Forum 2005-2010 (read only) / Bar Sport / Re: Ebay great deals on: August 26, 2010, 01:08:50 pm
low power laser modules are fantastic value. I bought some 3mW red laser modules for about £12 ($15) for eight a while back. Sorry don't have a link, but they do turn up quite a lot.

Ditto mini-servos for peanuts.
898  Forum 2005-2010 (read only) / Bar Sport / Re: UK Arduino people on: August 20, 2010, 10:12:37 am
OK, not that many of us. I almost used an emocion then!

So as the newbie here, do any of you other Brits ever meet up? Hijack a HAM radio rally or anything?

Si.
899  Forum 2005-2010 (read only) / Bar Sport / Re: UK Arduino people on: August 19, 2010, 03:54:28 pm
Added
900  Forum 2005-2010 (read only) / Bar Sport / UK Arduino people on: August 19, 2010, 11:07:32 am
I'm just curious about how many Arduino people there are in the UK and where they are.
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