Hi Steve, Just played your YouTube video on your coup perdu movement.
Looks great. Not too sure if my wife will agree to another clock in our living room.
Anyway, considering the fact that this is going to be a desktop clock and that the weight required is small, this would mean that the winding of the weight will be interesting to give a long runtime. Are you looking at using a small geared motor to provide the energy to wind the weight up every few minutes.
Hi Steve, I looked at the moped on eBay it cost me a lot of $ 10 plus $ 19 shipping, I noticed that there are different types on Amazon, I don't know, could you tell me the correct scooter on Amazon?. thank you.
Easy Build Pendulum Clock & Coup Perdu Clock
It is early spring here in Australia and I have been working in the garden this morning.
After seeing your new Coup Perdu winding mechanism, which is very similar to Clayton Boyer's system on the SpringTime clock, whilst gardening I have been thinking about trying to copy the drive system and retrofitting it into your 32 day pendulum clock. Currently I have a 2.5kg weight on the clock and it has been going really well for about 9-12 months.
Do you think that this is at all feasible with a different gearing ratio??
Also, congratulations on the new cock design, I looks awesome. Really can't wait to build it.
I also really like your electro magnetic pendulum clock although you don't seem to endear it as much.
I tested about a dozen different DC gear motors and this one was the clear winner in terms of size, noise levels, power levels, and price.
The prototype is coming along nicely. The biggest hurdle has been developing a reliable trigger mechanism. A mercury tilt switch would be extremely reliable, but they are getting hard to find because of the mercury. This looks like a reasonable replacement
They are rated at 0.5A and the motors only require 30-40mA. The prototype uses a 1-2 ounce weight that lifts every few minutes to power the clock. Initial experiments show the clock could have a 5 month run time with 2 AA batteries.