Sketchbook Moment No. 43
February 25, 2010 by admin · Leave a Comment

The Garden of Mechanical Knowledge. Converting (A) rotary motion into (B) linear motion.
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Steppy movement from a smooth cam
February 25, 2010 by admin · Leave a Comment

Interestingly, the motion derived from the smooth helical cam is jerky because the ratchet moves it in a series of 12 steps. The pin in the foreground moves back and forth picking a tooth at a time. The follower, the steel lever at top right, on which rests a brass button, is lifted in 12 increments then drops down.
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Sketchbook Moment No.42
August 17, 2009 by admin · Leave a Comment

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Psychology of perception. A: Necker’s Cube B: Necker’s Bicycle Read more
Sketchbook Moment No.41
August 10, 2009 by admin · Leave a Comment

Pulseometer. Cocktail stick, blu-tak, coin. This one shows a method of amplifying the pulse in your wrist so you can see it more easily.
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Sketchbook Moment No.40
August 3, 2009 by admin · Leave a Comment

Chosen
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Sketchbook Moment No.39
July 27, 2009 by admin · Leave a Comment

Mr. Rowbottom was mentioned on the radio this morning…
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Sketchbook Moment No.38
July 20, 2009 by admin · Leave a Comment

Robotic Police State
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Sketchbook Moment No. 37
July 13, 2009 by admin · Leave a Comment

Projectile.
Mechanical interpretation of the Heimlich manoeuvre.
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Sketchbook Moment No. 36
July 6, 2009 by admin · Leave a Comment

The Shop.
You need it. We got it.
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Sketchbook Moment No. 35
June 29, 2009 by admin · Leave a Comment

Inspirational Architecture:
Yes we cantilever



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