Lego working clock : prototype 1

[harroman42]

Really nice piece of work - well done!

[LaggasaurusRex]

I only recently learned that the period of a pendulum is not affected by its amplitude. I now understand why pendulums are used in clocks. THANK YOU SCIENCE!

[nico71240]

@LaggasaurusRex It is true, but only if the clock doesn't force the pendulum. In some cases, the system forces the period in order to find an unstable balance.

[tommy123506]

very cool



[gerou100]

original



[Mrsleahtaylor]

Have you placed the plans for this clock up somewhere? I would really like to build to to teach my students about simple machines.

[nico71240]

@Mrsleahtaylor Hum no but you can fo to my website or un brickshelf and find intresting pictures which allow you to re-built. I hope that it will be sufficient. If not, go to my website and look for 'cuckoo clock' and build the clock. I have made step by step the building instructions for the mechanism without the cuckoo. But it is a horyzontal pendular, not vertical. is it ok for you ?

[tackywacky99]

too fast.

[norbertbarics]

I just want to ask you for the plans of the clock. Great work. I want to model it in Lego Digital Designer:)

Greetings

Norbert

[ThomasBarnard1972]

can I get the plans for this clock, my little boy would like to build it.

[nico71240]

@ThomasBarnard1972 Hello, I have considered your remark, I will release the building instruction as soon as possible. regards

[tiggyman93]

what i want to see is what happens when you disconnect the pendulum entirely, and let the two big gears with the pegs attached in the back move freely...

[legoclockfreak710]

ugh son of a gun!!!!!! you beat me to it!!!!!

[Lioco94]

I am trying to construct it, might you put the instructions of the mechanical part please?

[chrisflamer1]

first pepetural motion mechanisame.  i would pay you a million dolars if i had it

[MASTURCHEEF001]

@chrisflamer1 it isn't perpetual. it just prolongs the usage of energy by gradually releasing it using gravity to help. these types of clocks have been around for about 200 years.

[chrisflamer1]

@MASTURCHEEF001 thank 4 clearing that up 4 me

[BenVanDeWaal]

The pendulum's motion is not harmonic (sinussoidal), as it should be for good timekeeping. You can improve that by reducing the weight gradually untill it just keeps the thing going.

[nico71240]

@BenVanDeWaal Thanks BenVandeWaal, I will try it !

[Toyshansolo]

Cool Technic !!!!

[KEvronista]

bravo! très byzantine!

KEvron

[apro001]

sure!

h t t p://tw.myblog.yahoo.com/mindst­orms.nxt55/article?mid=387&pre­v=393&next=380

[apro001]

Is it your original design?

I have seen the lego clock in a boy's blog earlier.

[nico71240]

@apro001 It s my own design, especially the 3-hands. Only part I have copied is the escapement system, what I credit in the end of the video. Can you give my the link of the boy ?

[nico71240]

@planklan It will have instruction, when it is finished and reliable.

[nico71240]

@planklan it is written : 15min, which I will improve

[arcanemettles]

Very cool. Looks like you've got a lot of trial and error ahead of you trying to get just the right combination of gearing, weight, and pendulum length... Good luck!

[TobiUchiwa]

Wow, that's pretty awesome.

[lomtafix]

today morning i startet to build a klock, too.

[G1McK]

zblj just posted everything i wanted to say

[Zblj1987]

Sounds just like a real one! What should autonomy mean? Time? Could you increase time by gearing up winch and adding more weight?

[nico71240]

@Zblj1987 autonomy mean that the clock work during 15min but after the weight is on the ground (with 1meter of height). To increase the autonomy, I can gearing up but then I have to put more weight, to keep the same torque on the pendulum. I have chosen a weight of 1kg maximun and I will design the gears and winch diameter in consequence. Stay tunned for the next version !