Let's Make Robots!
It's now over 18 months since the first BOB appeared strutting across K120189's worktop and I still haven't made one so I'm going to remedy that.  However, now … Read more
Makes a loud, piercing noise!
If anyone would like a look, I've posted a 3D printed loud noisemaker on Instructables and Thingiverse -  The Orange Screamer -  which is proving to be rather … Read more

The Joy of Logic.

There was an excellent program on BBC 4 last night - The Joy Of Logic, introduced by Prof Dave Cliff (the guy who wrote the 'Zip' trading algorithm, if that means anything to you).

It follows the development of logic from the ancient Greeks up to the present day in an intelligent but acccessible form with a great demo being a computer made from children (without removing their brains) performing an addition function.  It also highlights the major figures in the development of logic, and the trials and tribulations along the way (curse you, Godel!).

Great programme on automata on BBC4

I've just watched 'Mechanical Marvels : Clockwork Dreams' on BBC4; Excellent programme about the development of mechanical automata in the 1700's.  Absolutely incredible engineering going initially into the timekeeping instruments and then into the design of automata for the entertainment of the gentry.  It also discusses the impact of precision mechanics on the political situation at the time.

Get 'em while they're there - SG92R servos

I've just received 5 x SG92R servos from here : http://www.ebay.co.uk/itm/261131115638?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 and ordered 5 more.  6 days to the UK from Hong Kong and 14 quid (20 USD) for the five.

Please delete comments

 

Admins - Please delete non-relevant comment thread about embedding problems in http://letsmakerobots.com/node/33493.

Opening it up to see what's inside.
I recently bought a Hexbug Spider after seeing one in an Instructable.  The thing which impressed me was the unique directional control. Read more
Phase 1 (Updated 29/4 - New video & code.)     Here's a little robot built on CTC's excellent Tiny Tank chassis. It's based on a Picaxe 28X2 which … Read more

Pololu Plastic Gearmotors and PWM.

Does anyone know what's the best frequency to switch at when you're driving the 120:1 Pololu plastic gearmotors with PWM via a L293?

These motors : http://www.pololu.com/catalog/product/1125

Nascar / Google - Autonomous racing.

Google have developed an autonomous vehicle for Nascar racing - Click "I'm steering lucky" on the Google search page or go to  : http://www.nascar.com/video/none/none/120331/cup-mar-google/

(And remember the date #;¬)