How do Mechanical Pencils Work? #shorts

We've all used mechanical pencils, but have you ever wondered how they work? It's pretty simple overall, but in this video, I wanted to explore the fingers or collet and ring interaction. The interaction between the two makes it such that the lead goes outward more than it returns.

Script: Teddy Tablante
Twitter: @teddytablante
Voice Over: Phil Lee

Table of Contents:
00:00 - How Mechanical Pencils Work
00:37 - Clicking Sound
00:48 - Resetting the Mechanical Pencil

Erratum:

Post with Adobe Premiere Pro

#MechanicalPencil #Shorts #Animation

[flipschwipp]

Astonishing quality of the Animation. I wonder how many hours of work went into.

[BranchEducation]

In order to keep the video to <60s, a number of elements had to be abridged or omitted. If you have any questions, definitely ask them, and the top ones I'll answer here:
1. Why is it called lead? Pencils have never used lead, but rather early scientists [~1500s] thought graphite was a form of lead.
2. The tip of the pencil is also critical. It prevents the lead / graphite from slipping when the fingers are disengaged, it guides the lead, and it helps to prevent it from snapping. [Credit to Miguel Borromeo for a related comment]
3. Some don't click, and that is due to the materials of the ring and fingers, as well as the shape of the taper in the fingers.
4. What force makes the fingers flare outward? First, the fingers are all connected at the wrist, kind of like fingers / hand / wrist. Second, the fingers are manufactured such that their natural position is to be flared outwards, and the ring forces them together. [Credit to Taconator121, Errhka and Miguel Borromeo again]

[Gosu]

1 minute video, but I can only imagine how long it took to create it. Amazing quality.

[nasa_scientist]

you are boss of animation! man you are a revolutionary teacher 💙

[annenoname]

When the lead stops coming out and you know you just filled the pencil; It's around the 3rd unjamming that you become an expert in this mechanism, at the tip of the pencil.

[mmee]

Any kid that had a mechanical pencil in school knows every part of those pencils.

[Zeero]

Let's not forget that the tip of the pencil is meant to guide and hold the lead just enough to not slip when the fingers are disengaged. This allows the lead to be fed outward in a more controllable way and in any orientation, provided that the fingers have currently captured a lead.

[TheFrenchPlayer]

Dude just answered my number one question when I was 11 in one minute

[randomuser]

Hey Branch Education, It would be amazing if you did a video on the quantum physics/ physics behind the greenhouse effect ! I love your videos - you are probably one of the best science channels on YouTube ! Keep up the good work !

[allclear_coaching]

Short and Straight to the Point.
Well done.

[giant]

One of the first mechanical introductions for curious minds in school 😆 cant count how many where sacrificed in the process

[OslerS]

This people can genuinely make *ANYTHING* look super interesting and astonishing with that 3D animation and voice over

[cosmichasm]

60 seconds of real content. Thank you!

[Ahmed-ozvg]

What a clarity in explaining things. 👏👏

[One_KHRN]

Genius animation! Very precisely depicted. 👍

[Convolutedtubules]

Great little upload! I hope this style of video works out.

[iamakkkshay]

I figured this out myself when I was 12 in school.
Wish I got a guidance to move on but none the less this side of youtube really helps me to get back in the zone♥️♥️
Thank you so much

[prathamkapania]

plss sir provide us more information related videos behind such a interesting and important apparatus that we use in our daily and which become our works so simple by some basic of applied science and mathematics only like ur IT world one more request plss add them continuously atleast every search of nxt knowledge video we crazy ones and ready at table to get it

[mr._.mav]

I actually knew this surpisingly. When I was in school I would always take things apart and put them back together, among them being mechanical pencils. While I didn't know that the metal ring actually snapped backwards, creating the clicking sound, I had pretty much sorted out how the rest of it functioned

[tvp-rbe-betterworldstem]

I love it please make more videos like this