Tuesday, May 12, 2015

New Clock on the way

After a year of zero productivity due to health problem I was forced out of my garage and hobbies as I needed to recover my finances. Fortunately I am back to my professional activities that makes me travel a lot.

My heart and my mind are still with the clocks and I just finishing a new design.
My new clock, still in paper but very very advanced in the design has a name: Pythagoras and here is a pic of the basic drawing:

image

One of the big problems of the wooden clocks is the precision. They are really affected by temperature and humidity. My friends are always asking for nice clock and a the same time with precision. Wood, brass and gravity will never make a high precision clock although they are really pieces of  art that require a lot of dedication, love and tons of patience but common people do not understand this. When I show my clocks the first thing most people say is “How beautiful!.. etc, etc. But a second later the big question: How precise is it?

So I decided to mix electronics and art and create a Microprocessor controlled wooden d clock. This clock will be driven by a Solenoid that will tick each 2 seconds    The Escape wheel is a ratchet with 30 teeth. The solenoid has a total movement of 4 mm that will be converted in a 12 degree rotation of the wheel. The other design characteristic is that the distance between centers of all the wheels is 2” and the position of the wheels forms almost a triangle rectangle. This is the reason for the  Pythagoras name of the clock.

As usual I will start with a test stand for the driving mechanism: The escape wheel, the solenoid and the microprocessor, and I will be sharing with you all the leanings. As I am traveling a lot for working reason this will be slow, but you can be sure that I will finish this clock.

See you soon!

2 comments:

  1. Hi Carlos,
    I have just stumbled on your blog.
    I too have gone down the route of microprocessor control in my wooden clocks but in a slightly different way.
    In the case of my large balance wheel clock the rate of oscillation is checked and adjusted every 90 seconds to give an on average 5 second period. The clock has been running now for 3 months and shows 1 minute divergence from my digital watch, and this includes two 30 second power cuts.
    In my wooden Congreve clock with a tilting table the microprocessor measures the time taken for the traverse of the ball again over 90 seconds and adjusts the tilt of the table to give an on average precise 15 seconds traverse. This too has proved remarkably precise but I have not run it as long as the other clock.
    You can see these clocks if you are interested on www.woodenclockspot.blogspot..co.uk
    I don't have the luxury of CNC but cut all the wheels on a bandsaw and scrollsaw.
    I am not sure how any reply will get back to me through the blog, but if you feel you want to please use nigel @climpson.eu
    Keep making sawdust
    Nigel Climpson

    ReplyDelete
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