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@Ramo

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Since 06.06.2026

Simulating 2D & 3D Robot Arms in Excel, with Inverse Kinematics(reddit.com)
I made a playable Excel workbook that models a 2D and 3D robot arm using only ordinary spreadsheet formulas, charts, sliders, and Excel Solver. The idea is to make kinematics easier to understand. GitHub: https://github.com/CarlKCarlK/excel-3d-robot-arm The 3D arm is inspired by the old Radio Shack / TOMY Armatron toy robot arm. The workbook lets you move the arm manually, set a target point, and then use Excel's Solver to find the control settings that move the hand to the target (inverse kinematics!). I made this mostly as a learning project. Excel makes the math visible: the rotation matrices, position updates, target error, and Solver setup are all inspectable cell by cell. Nothing is hidden in a robotics library or graphics engine. The model itself is just a series of rows, each controlling one segment. The rows process 3 ways to turn (yaw, pitch, roll) or a move, turtle graphics-style. submitted by /u/carlk22 [link] [Kommentare]
AI needs shame, not taste(x.com)
You have seen the posts. The LinkedIn announcement that opens "In a world where", four hundred words long and not one of them the author's. The comment that thanks you for "this incredibly thoughtful piece" and then describes a piece you did not write. The company email so completely handed over to a machine, start to finish, that no human could have read it back without wincing, which is the tell, because plainly no human did. Bad work is not the part that gets to me. Bad work has always been with us. It is that nobody making it appears to feel a thing. Not a wince, not a flicker.