How do Scroll Wheels Work? 🖱🛠🔬
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- Опубликовано: 1 июн 2024
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Have you ever scrolled a scroll wheel and wondered how it scrolls? Scroll is a rather strange word, isn't it? Anywho, in this video, we're going to explore the inside of a computer mouse and look at two different scroll wheels: an optical rotary encoder, and a magnetic rotational position sensor, and see how they are used to measure up and down rotational movement in a computer mouse scroll wheel. We're also going to explore the push button under the scroll wheel as well as the free-spinning vs. ratchet mode of the scroll wheel.
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Modeling, Animation & Editing: Mike Radjabov
Script: Teddy Tablante
Twitter: @teddytablante
Voice Over- Phil Lee
Additional Modeling: Prakash Kakadiya
Table of Contents:
00:00 - Intro
00:40 - Inside an Optical Scroll Wheel
02:46 - Direction of Rotation
03:37 - Inside a Magnetic Scroll Wheel
06:50 - Pushbuttons and Free Spinning Vs Ratchet Mode
09:08 - PCBWay
09:54 - Outro
Key Branches from this video are: Printed Circuit Boards, Lithium-Ion Batteries, Scroll Wheel, Bluetooth, Computer Mouse Image Sensor
Erratum:
Animation built using Blender 3.0 www.blender.org/
Internet References:
Logitech MX Master 3 Teardown offers an Intriguing look at its new scroll wheel
www.theverge.com/circuitbreak...
blog.bolt.io/logitech-mx-mast...
Fixing the Logitech MX Master Scroll Wheel
toemat.com/logitech-mx-master...
Details of the Image Sensor
www.pixart.com/
Inside the Omron D2FC-F-7N Microswitch
www.gonnalearn.com/inside-omr...
What is Mouse DPI? Does DPI Matter?
xahlee.info/kbd/mouse_dpi.html
Logitech Mouse Review. Logitech MX Master Wireless Mouse. Packaging and Equipment
playfmrussia.ru/en/programmy/...
Razer Viper Gaming Mouse Review: Lefties Bestie, Righties' Meh-stie
www.tomshardware.com/reviews/...
Wikipedia contributors. "Computer Mouse" , Interpolation Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited October, 2021
Music Credits
#ComputerMouse #ScrollWheel #Mouse
![How are Images Compressed? [46MB ↘↘ 4.07MB] JPEG In Depth](/img/1.gif)
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omg look at the screw at 6:53, it even has imperfections on its surface
@Lon that's sick, I wonder how they do this
@@ghostali8351 they said that they took apart these particular mice. Maybe they kind of 3D-scanned every part
@@Lon3wolf3 where did they say this please?
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Which engineering are you doing?
@@kned7288 I’m in mechanical engineering
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I've got the Logitech MX Master II so it was awesome to see how my mouse works - thanks for making these!
Yes, now I finally know what the button behind the scroll wheel does!
@@drew1936 I have a Logitech MX Anywhere 2S, and it is by pressing the scroll wheel itself that engages/disengages the smooth/stepping mode of the wheel, there is no motor but a simple mechanical latch.
The button behind the wheel is its own separate button, with no relation to the wheel.
@@PushyPawn Its different on every mouse. I used to have the standart MX Anywhere 2 and pressing the scroll wheel also enables the fast scrolling mode. I now have the Logitech G903 and it has a seperate button under the scroll wheel that enables fast scrolling and the scroll wheel click works as normal.
@PushyPawn @David K I actually have two buttons on mine. One behind the scroll wheel, and one even further that changes the DPI between five settings. And then there are the two custom buttons on the side that I can configure to do whatever I want
@@PushyPawn ^
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Loved the sequence where the frame surrounding the wheel went transparent. Absoulutely amazing animations!
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I've been using these types of peripherals (mouse, keyboard) since the early 2000s. This is the most informative and illuminating video I've ever seen. Especially visual animations during the presentation are really top-notch quality.
The timing on this is so funny to me - I was just a few weeks ago researching how feasible it was to try and build my own gaming-level mouse from scratch. I have some very awkward hand sizes that have made it difficult to find a mouse that's comfortable to me AND that includes all of the fancy modern features with buttons in places I like. It'd be really fun to 3d print my own case & buttons, and learn how to wire up the boards and sensors correctly on my own. But learning about scroll wheels was difficult, and figuring out how to obtain PCBs seemed impractical.... you managed to cover both in ways that have reignited my interest. Thank you :)
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Top tier animations, as always. But need to mention that 95% mice have simpler mechanical encoders.
I actually was searching for a mouse that I can trust. At the moment I have a Genius NetMouse Wheel/PS2 but I would like something with a USB connector and an optical scrollwheel (just like the NetMouse) to carry around in my backpack. Couldn't find one just yet :(
This, most gaming mouse atm just uses simple mechanical encoders.
honestly i think this was true even 5 years ago, but competition is extremely fierce and you now see tons of very affordable and cheap mice, typically targeted at gamers, with features that you only normally see in expensive ones. just look at amazon's best sellers and see their features and price point.
maybe it's true that a lot of them still use simpler designs, but likely not 95% of mice.
@@BattousaiHBr Can you give several examples of better mice? AFAIK even top-tier gaming mice, not old by any means, like logitech g pro x superlight, razer viper ultimate, have mechanical encoders. And my current "pwnage ultra custom wireless symm 2" too.
@@WERT2025 the superlight is an exception because it's going so far in the high end side that it's "sacrificing" some performance for less weight (though i reckon they have gone through effort to still make the scroll as good as it can).
other than that, there's plenty of mice with optical scroll sensors. maybe most of the expensive ones?
if you've seen mice with that wheel switch that changes between stepped mode and free mode, those are all optical sensors afaik.
another good indicator (though not necessarily a rule) are metal wheels.
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This was cool. I have the MX Master 2 and 3 right night to me right now and was always curious how they worked. Especially the MX 3 which uses the magnet wheel.
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This explanation helped me fix my scroll wheel, thank you
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really cool ! i had to learn how it work so i can repair my own scroll wheels that jumping like crazy from a slight scroll movement.