Macdowall Escapement and Pendulum Mechanism

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[@carlaceres]

You explain things so clearly! Before this video, I thought I would never understand how a clock works. Thank you!

[@chance1986]

Nice demo and well explained. As you said, this particular escapement isn't very efficient. But it's simple. I believe it's also known as the "single pin" escapement. I enjoy the history of escapement designs, so thanks for making this video. Very enjoyable.

[@ludicscience]

Yes it is the single pin escapement!

[@umutonderyerli6995]

I learned more from you than I learned in high school. Thank you.

[@diecksl]

I like the electronics, but I also enjoy this stuff

[@badraa7838]

nice project!

[@128Wojtek]

Congratulations on exceeding 100k subscribtions :)

[@nigel-matthews]

Interesting video. I've noticed you change the background color every several videos. I like this color best as it is easiest for viewing and least distracting.

[@rhyiamcastillo111]

Congratulations sir now you've reached 100k subs

[@vjdav6872]

I would love to reproduce your wonderfully simple design for my grand daughter! May be this would help me: what is the pendulum length, and how far from top is the escapement ? Dimensions would be very helpful also. Thank you ..

[@placeholdername3907]

My favorite one

[@TruthLives4444]

Fantastic

[@guinaldo29]

Mais Fácil que isso impossível. Obrigado por compartilhar.

[@nonothebot]

Clocks are great mechanisms.

[@ludicscience]

Wonderful

[@lohikarhu734]

Nice video of a super-simple escapement! Is this one of the simplest possible?

[@adamsteller1903]

I love the simplicity of this but I am most curious about what you were 3-D printing in the background.

[@berendwlllem]

Nice!

[@rc-1162]

Это просто великолепно!!

[@ludicscience]

Спасибо!

[@GoVertical17]

Great, starting to fabricate a monster pendulum drive with PTO. No gas required electrical generator. :) Thank you.

[@markjob6354]

Very well done Sir :) Is there any way to construct your pendulum based escapment so that it does not release so much energy with each ticking cycle of the pendulum ?

[@lohikarhu734]

@markjob6354; 2 years later... You can "gear up" the windlass mechanism, and you can add some kind of "speed control" to the escapement rotation...some clocks use a kind of "fan" with a friction clutch to slow the rotation, and to hold the pin against the 'block' to prevent it from bouncing.

[@angelfarias5522]

Amigo gracias por compartir, yo hice un mecanismo pero el péndulo se detiene ante que la cuerda se termine ,. Por qué podría ser, por favor gracias

[@PauloZancoski]

Cool !

[@scose]

With a weight it makes sense that it always applies the same force to the wheel, making constant speed, but with the spring how come it doesn't oscillate faster when the spring is more tightly wound?

[@ludicscience]

From wikipedia: A problem throughout the history of spring-driven clocks and watches is that the force (torque) provided by a spring is not constant, but diminishes as the spring unwinds (see graph). However, timepieces have to run at a constant rate in order to keep accurate time. Timekeeping mechanisms are never perfectly isochronous, meaning their rate is affected by changes in the drive force. This was especially true of the primitive verge and foliot type used before the advent of the balance spring in 1657. So early clocks slowed down during their running period as the mainspring ran down, causing inaccurate timekeeping. Two solutions to this problem appeared in the early spring-powered clocks in the 15th century; the stackfreed and the fusee: Stackfreed Main article: Stackfreed The stackfreed was an eccentric cam mounted on the mainspring arbor, with a spring-loaded roller that pressed against it. The cam had a 'snail' shape so that early in the running period when the mainspring was pushing strongly, the stackfreed would provide a strong opposing force, while later in the running period as the force of the spring decreased, the opposing force of cam would also decrease. The stackfreed added a lot of friction and probably reduced a clock's running time substantially; it was only used in some German timepieces and was abandoned after about a century. Fusee Main article: Fusee (horology) The fusee was a much longer-lasting innovation. This was a cone-shaped pulley that was turned by a chain wrapped around the mainspring barrel. Its curving shape continuously changed the mechanical advantage of the linkage to even out the force of the mainspring as it ran down. Fusees became the standard method of getting constant torque from a mainspring. They were used in most spring-driven clocks and watches from their first appearance until the 19th century when the going barrel took over, and in marine chronometers until the 1970s.

[@marcelodiegodiez]

You skip the explantion of the blocking lapse time in each tic and toc. The pipit don´t jump from one pushing area to the other; instead it is blocked on the otreh surface until the pendulum comes back.

[@weerobot]

Awesome...

[@robson6285]

You wound the wheel the right direction while showing the working, but the wrong direction when letting it run. That way it would not run for long and only stopped it in these steps without driving it.

[@raykent3211]

I initially thought you were wrong. He winds anticlockwise and it runs clockwise. But around 4:20 it seems to be blocked on the wrong face, trying to move anticlockwise, which wouldn't happen.

[@robson6285]

@@raykent3211 exactly

[@DiyEcoProjects]

~ Would of loved you to have been my teacher at school. Great videos If your pendulum swang at 30' arc youd get a very close "second". Could explaining it with 360 diameter clock face / 12 segment marked as hrs = gives 12x30' degrees (arc seconds) 360/12=30' degrees pendulum swing is an old second of time Prob know that, but reader might be interested

[@ludicscience]

Thanks good info

[@DiyEcoProjects]

@@ludicscience maybe draw a circle onto paper and explain like a clock face. then cut out a 30' degree section (triangle section dot in middle). then create a pendulum swing out of it, using its length :)

[@DiyEcoProjects]

@@ludicscience just thinking... perhaps pendulum advancing a disc of 6' degrees teeth is equivalent to 1min (A) 360/60=6 so that would ALSO mean disc (A) with a peg on it advancing another disc (b) of 6' by ONE tooth every minute would equal 1 hr could also have another peg and advancing disc (C) of 360/24=15' for 24hr clockface /// two discs, 60x6' teeth. first one has a peg on it to mark its full rotation one disc, 24x15' as a 24hr clockface ...interesting

[@raymondo162]

nah. you really didn't understand the theory

[@DiyEcoProjects]

@@raymondo162 I hate it when annoying pricks like you provide no evidence, ideas or further the discussion… choosing instead to chime in with ”ERgh got it wrong” as if that in any way elevates your status as being knowledgeable. This shows complete lack of intelligence on your part. Justify your position, explain your idea and that will be welcome, or go back to the moronic abyss from whence you came.

[@BushImports]

I never have seen an escape or verge like that.

[@elye3701]

Are there any design equations? A mechanism like this would be useful to lower people to safety from a burning building.

[@meunomeeplissken3088]

Muito bom

[@firstnamegklsodascb4277]

COOL

[@jatinkhajuria7151]

I like your wall more than that green sheet.

[@coronavirus3595]

The hardest part is, Petroluim companie paying trolls to discourage young engineers to develop this kind of project... This is working but they will kill you if you publisize your specs on how it works... I made one nd its working

[@poweredbysergey]

Cool!