Uploaded July 2021 | Updated September 2026, 2 weeks ago
This has been officially reuploaded to Team Wolfsbane's channel that I now work with. Check it out there instead! youtu.be/6tXFb8jFp0c
Fatal Force Visual Novel Official Soundtrack
Song Name: Welcome to Stella Academy
Composer: Arglin Kampling
Mixing: Retrotune
Artwork: DarkDragon563
Download "FatalForce - The Tragedy of the Lone Wolf Arc" here! darkdragon563.itch.io/fatal-force-the-tragedy-of-the-lone-wolf-arc
Come vibe with me! I'd love some company and don't bite, believe me. :P discord.gg/uNdpFzeNeY
^^^ If the link is expired, check the latest video and try that one.
This has been officially reuploaded to Team Wolfsbane's channel that I now work with. Check it out there instead! youtu.be/6tXFb8jFp0c
Fatal Force Visual Novel Official Soundtrack
Song Name: Welcome to Stella Academy
Composer: Arglin Kampling
Mixing: Retrotune
Artwork: DarkDragon563
Download "FatalForce - The Tragedy of the Lone Wolf Arc" here! darkdragon563.itch.io/fatal-force-the-tragedy-of-the-lone-wolf-arc
Come vibe with me! I'd love some company and don't bite, believe me. :P discord.gg/uNdpFzeNeY
^^^ If the link is expired, check the latest video and try that one.
![Cubic Bezier Curve Linkage / Mechanism + Stupidly Complex Constant Rotation to Linear Approximation
Added note: Everything is made up of revolute/pin joints. No prismatic/sliding joints were used. :3
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^^^ If the link is expired, check the latest video and try that one.
Explanation for how this was made:
First off, regarding the Peaucellier-Lipkin linkages, imagine them as a replacement of slider joints. So any point where you see being guided along a straight line could be replaced with a slider. [Fig 1: https://youtu.be/_HN1Q29F2Zg?t=232]
Connecting two of these sliders can solve for the intersection point of two links.
This linkage is manifested from De Casteljaus Algorithm to draw a Bézier curve. Theres a great video on it by Freya Holmér called The Beauty of Bézier Curves which I 100% recommend checking out if you havent already:https://youtu.be/aVwxzDHniEw?t=112
(1m53s to 3m57s is all you need to understand the following explanation).
So this was the order in which I figured things out:
1. LERPing lines change length.
This one was easy enough. You can just have a bar connected to two joints, with one being a revolute joint and the other a prismatic joint. Then make it jut out on one side and then disregard it.
2. Performing a LERP on a variable length line:
When performing a LERP (linear interpolation) on a point, the line it rests on can change in length.
So, I had to find a way such that no matter how much the line it goes along changes in size, its able to figure out how far along the line my desired point is.
I solved this with a geometric property of similar triangles: when you scale a triangle, the angles are preserved, but the sides can change. This means that I can encode an input our desired LERP into a beam which swings a specific angle. Then, I can translate this angle into all of the other other LERPs in which I will need, even for the ones where the line is dynamically changing. [Fig 3: https://i.imgur.com/mScI130.mp4]
3. Construct the Core LERPs
These were easy, as I could just attach the Peaucellier-Lipkin linkages performing their respective LERPs together by their crank, as none of them moved and none of them had to do any dynamic scaling.
4. Finding where the translator angle should be located.
First off, I wanted to use an angle that would be easy to construct, and I found that 90 degrees would be really easy to work with. In turn, I used a right isosceles triangle as my translator.
I solved for a right isosceles triangle using geometric constructions. What I found out for the yellow and green LERPs was that this was very conveniently another straight line which uses the same LERP. The magenta one was more difficult, though I found a mechanism that was capable of finding the midpoint between the ends of the LERP (pantograph), then copy one of the points and move it around the midpoint 90 degrees in order to get the position (using two bell-cranks).
5. LERPing lines change angle.
This was a bit difficult to figure out but I got it in the end.
If you fix your view on just one of the angle translators of the moving guides (green, yellow, pink), youll see that it just scales up and down and the link swings regularly. But now we also have to deal with the whole systems angle relative to the rest of the mechanism. To do this, youre adding two angles together: the angle translator, and the angle of the whole LERP-ing mechanism. [Fig 4: https://i.imgur.com/xRORXHe.mp4]
To do this, well look to the deltoid (kite) shape, which has a single line of symmetry. You can create this in linkage using the idea I presented in problem 1. With this, it means that the line of symmetry bisects the angles it crosses through, finding the middle angle of two input angles. You can flip this on its head to create a doubler as well by just making the line of symmetry one of the inputs.
Now you can figure this out algebraically.
The midpoint of two values can also be described as its average.
e.g. The midpoint of 5 and 7 is 6. The average = (5 + 7) / 2 = 6
Notice how theres a plus there? Thats what were looking after. So we have to get rid of the divide by 2.
(5 + 7) / 2 * 2 = 5 + 7
So you use the line of symmetry of a deltoid (which is hooked to the angle translator and the body of the main) to get the bisected angle, then you double said angle using another deltoid to add the angles together.
And voilà! Thats everything there is to making the cubic bezier linkage.
As for making it into a converter between linear to rotational, you can project the horizontal component of the approximate sine wave onto a line, and project the vertical component onto a circle. And thats it! Cubic Bezier Curve Linkage / Mechanism + Stupidly Complex Constant Rotation to Linear Approximation](https://i.ytimg.com/vi/wbuPf-yFH90/mqdefault.jpg)


![MORE Methods for Bracing a Contraparallelogram! [English CC]
Come vibe with me! Id love some company and dont bite, believe me. :P https://discord.gg/uNdpFzeNeY
^^^ If the link is expired, check the latest video and try that one. MORE Methods for Bracing a Contraparallelogram! [English CC]](https://i.ytimg.com/vi/xIxT7OePcGg/mqdefault.jpg)

![Real Civil Engineer Minecraft Tour | Arglins Perspective [CC for Locations!]
List of Chapters below! vvv
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CHAPTERS:
0:00 - BILF and RCE Statue
3:33 - Huntresss Cave beneath the BILF
5:37 - VACUUM CLEANER - Skip to 8m 4s (If you cant stand it)
8:04 - Nether Hub - Tunnel -666
8:11 - Nether Hub - Yellow Artery
8:51 - Nether Hub - Zero Enoseis Base
9:07 - Zero Enoseis Base
9:50 - Arglins Base - Outside
10:11 - Arglins Base - Main Ground Room
11:10 - Arglins Base - Fishing Room
11:16 - Arglins Base - Main Ground Room
11:20 - Arglins base - Fox Den (plus pigs)
11:48 - Arglins Base - Main Ground Room
14:21 - Arglins Base - Fishing Room
16:28 - Arglins Base - The Secret Door
16:58 - Arglins Base - The Secret Tunnel
17:25 - Arglins Base - Arglin pushes RCE down the shaft
17:31 - Arglins Base - The Hidden Subterranean Base
17:38 - Arglins Base - Music Box - Base
17:41 - Arglins Base - Central Hall
18:09 - Arglins Base - The Storage System Floor 1
18:14 - Arglins Base - Central Hall
18:30 - Arglins Base - The Storage System Floor 1
18:43 - Arglins Base - Central Hall
18:58 - Arglins Base - The Library
19:23 - Arglins Base - Central Hall
19:32 - Arglins Base - Music Box - Base
19:39 - Arglins Base - Central Hall
21:22 - Arglins Base - Music Box - Relay Wiring
21:46 - Arglins Base - Kampling Cafe
22:55 - Arglins Base - Arming the Music Box
23:27 - Arglins Base - Music Box - Internal Wiring
24:14 - Arglins Base - Kampling Cafe - Everyone gets under a table
25:27 - Arglins Base - Music Box - Special Edition Enabled
25:49 - Arglins Base - Kampling Cafe - Everyone is under the table
25:55 - Arglins Base - Music Box Begins!
26:43 - Arglins Base - Music Box - Get Rickrolled
27:05 - Arglins Base - Music Box - Finale
27:32 - Arglins Base - Kampling Cafe
27:54 - Arglins Base - Music Box - Failsafe Demonstration
29:14 - Arglins Base - Stasis Chamber
29:52 - Arglins Base - The End of Recording Session 1
31:40 - Arglins Base - Post Mortem - Call Session
39:45 - Arglins Base - Post Mortem - End Call / Silence Real Civil Engineer Minecraft Tour | Arglins Perspective [CC for Locations!]](https://i.ytimg.com/vi/yhcOq4F0Kfo/mqdefault.jpg)




