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Showing posts from December 16, 2012

24 hour vague clock

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The vague clock came about because people have different names for different parts of the day. Some people view afternoon as 12pm onwards (which it is) but when does midday start and end? So I decided to jot these all down and put the on the one clock face. It soon became apparent that the AM/PM overlap was going to cause me issues to I decided to slow the whole clock down to perform one rotation every 24 hours. I've left the link as the rather more general pdf format if you want to print your own or just read the witty writings on it, guffaw. (pdf here)



It's a simple modification to turn the clock into a 24 hour clock. Clock modules are pretty much all the same, a control crystal provides the timing pulses, the coil is energised in one direction and then the other, which causes the magnet on the bottom of the smallest gear to rotate, half a turn per second and appropriate gearing from that point onwards to make all the hands rotate correctly. Simply cutting half the teeth of…

Project #7 Marble Machine #1

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This post has long been the most viewed post on my entire blog but this design has long been superseded so I just want to make people aware that a better version exists


I present to you my own hand cranked, laser cut marble machine. These are available to purchase as kits, for self assembly and I intend to run some local workshops for them too. The kit includes all the laser cut wooden parts, the nuts and bolts, and enough balls to fill the machine up and spares.

This kit and assembly instructions are available through my shop http://msraynsford.myshopify.com/products/marble-machine-1

Don't forget to check out my other marble machines too


A long time ago in a blog not so far away (this one actually) I ran a project where I laser cut one item per day for 365 days. While I was making the machine triggers and before I'd committed to running my own Donkey Kong machine there was a suggestion that I should be making kits like this to sell on the day. I gave it a whirl and failed and …