Mad software engineer. 🟩🟩🟩🟩🟩🟩⬜⬜⬜⬜ physical game room from silicon to software. 🟩🟩🟩🟩🟩🟩🟩🟩⬜⬜ CNC router table 🟩🟩🟩🟩🟩⬜⬜⬜⬜⬜ Plasma CNC
Joined April 2025
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Two years ago, I had a discussion with Marc.
My thesis was that all datastore SaaS is a race to the bottom in long term. Not because non technical people will code the tools, but because it becomes cheaper for a few technical ones to create software specifically catered to your need than to maintain big space ships that can do everything. And if you play long enough in such conditions real defensibility is behind one of these: safety, regulations (e.g. finance), market effects (marketplaces) and hard to collect assets (like accumulated data).
Now if we assumed for a moment that creating software is not just cheap, but free. Let's say LLM labs finally eat the software and just for mare 59$ a month they can build whatever you ask them to. Does that mean SaaS is done? What I would still pay for instead of building?
And that mostly is access. Access to data, compute, electrons, a market or even permission to operate from a gov. There are rare cavities, like API aggregators that pay per api access as a business and it is pricier to pay for access yourself in bulk. But for the most of it, it's scarcity that is what's left.
There are opinions that currently people are limited by marketing skills and the current moat is UGC, SEO or just good ads. But at the bottom of it, the cheaper software gets, the less it's going to be an issue. As in case of 59$ a month do it all subscription would take your ad as a promt and build the tools for the user.
Even tough I saw this coming two years ago, I still struggle to position myself and find a good bet.
I wish more governments had leaders who respond to cybersecurity threats this promptly. This needs more awareness!
皆様に、今夜に対応して頂きたい大至急のお願いです。
多くのウェブサイトで使用されているPHPに関し、PHPのセキュリティチームが、重大な２件の脆弱性に関する注意喚起を行っています。
公開しているウェブサイトでPHPを使用しているか確認し、今夜、10月21日午後11時（日本時間）に公開される修正パッチについて、可及的速やかに適用できるよう準備をお願いします。
修正パッチを速やかに適用することが困難な場合は、例えばウェブサイト等を一時的に停止させることも、リスクを低減させるための有効策の一つと考えられます。
国家サイバー統括室のXアカウントでも関係する情報を発信していますので、そちらも参考にして下さい。
国家サイバー統括室(注意・警戒情報)（@cyber_forecast） / X
After using OpenSCAD for a week, I can't go back to any other CAD.
The UI sucks, though. Simple distance measurement is nowhere near what FreeCAD has, and it spins the CPU up to 100%.
BUT I can use agents as native tools in OpenSCAD. It's literally spatial coding rather than modeling. And the cherry on the cake is that it's easy to track using git!
Pijus retweeted
Turns out there's a livestream straight from the JLCPCB factory where you can watch PCBs being manufactured in real time:
Pijus retweeted
Fun challenge video I made about Making Solar Panels with a Microwave :P
Seeing what can be done outside of a conventional fab in just a garage with the bare minimum.
semiconductor.diy
I can sim OpenSCAD gears with forces!
It's very primitive. But honestly will do most of what I wanted.
Decided to try it out. NGL, it might look shitty, but it works!
The bodies are created in openscad, then imported to godot. ATM they default to steel material properties and I can join them on predefined scad points. Run/reset the sim.
I think I'll try next creating a scad assembly with "joints" and auto convert it to an assembly.
Decided to try it out. NGL, it might look shitty, but it works!
The bodies are created in openscad, then imported to godot. ATM they default to steel material properties and I can join them on predefined scad points. Run/reset the sim.
I think I'll try next creating a scad assembly with "joints" and auto convert it to an assembly.
Any ideas how I could use this scrap space?
It's 3mm mild steel I'll cut with plasma. The big triangle is 100x172mm
The CNC plasma inherently has flaws in its structural design. Since it's a portable machine, there's a 99% chance the X and Y axes won't be perfectly perpendicular after each setup.
But the output can still achieve accurate dimensions.
Instead of spending time physically aligning the machine every time I set it up, I'll compensate for the misalignment in software.
I currently see two approaches:
1. A triangular jig with magnets at its vertices, using a 3D Hall sensor to locate their centers.
2. A camera that detects the edges or vertices of a triangular jig.
Either method would give me the exact real-world displacement relative to the machine's assumed coordinate system. From those measurements, I can calculate a simple transformation matrix and compensate for the machine's geometric errors in software.
In both cases, I'll create a Z-height map by probing the surface with the torch itself.
Why everything in CAD looks so much bigger? I can barely squeeze in my fingers to screw some nuts. What were I thinking
Had to add a new feature to existing parts for the first time.
Pretty hard to manually align the coordinates. But since plasma isn't the most accurate cutting method a simple magnet arm is enough to index the part.
Definitely need one of those cross pattern laser pointers
Accidentally discovered this and spent way too much time playing with it!
Motion multiplication in action:
I was wondering how hard it will be to weld the z axis of the plasma cnc.
I hoped it will self align once clamped and it worked!
Turns out there's a reason people use thicker than 1 mm sheet for plasma water beds. 😅
Was playing around with 8 mm mild steel and burned straight through mine.
Flooded everything. Had to yank the cables, grid, and bed out ASAP. Hence the mess in the background.
Now I'll need to redo both the bed AND the tabletop.
At least I can cut 8mm though!
