Senior Hardware Developer @Prusa3D 🧡 posting about Life, Electronics, 3D Printing, Aikido, Tesla, Motorcycles and Paragliding.

Prague, Czech Republic
Joined May 2011
Replying to @FrameworkPuter
Wild times when running a 3D printer feels easier than dealing with those old 2D ones. 😎
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Martin Wolker 🪂 retweeted
Should a USB-C connector's shell go straight to ground, or through an RC (1 MΩ ‖ 4.7 nF)? Open boards are split. I hit both with a simulated 8 kV zap. Either way, 30 A lands in your ground. The cap is just left holding 249 V. Answer: straight, unless the box is earthed. 🧵
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Martin Wolker 🪂 retweeted
You found it. 🍌 
The banana at the Next Gen Roadster reveal wasn't an accident. It was an analog stopwatch.
A laser triggered the drop the instant the tires started to roll. We hung it at exactly the car's 0-60 time at the time of 1 second. 
Banana hits the ground. Car hits the laser wall. Same frame.
Here's how we did it 🧵
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Martin Wolker 🪂 retweeted
The new Roadster's rear drive unit is unbelievably small for something producing 1,341 hp. Lars Moravy says its two motors produce more power and torque than all three in a Model S Plaid, in @Hagerty’s video. Each motor has its own inverter and planetary reduction gear, allowing independent control of the rear wheels without a conventional differential.
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Martin Wolker 🪂 retweeted
GTA VC: COMEFLYWITHME
🤖 Made with AI
Traffic is a bit heavy in the Z-axis today.
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Martin Wolker 🪂 retweeted
Do a kickflip!
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Martin Wolker 🪂 retweeted
Here is the next-gen Tesla Roadster development video from the unveil event that they shared exclusively with us.
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Martin Wolker 🪂 retweeted
We did it! Framework Laptop 13 Pro is on TIME's Best Inventions of 2026. This is our third product to list, after the original Framework Laptop in 2021 and Framework Laptop 16 in 2023.
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Martin Wolker 🪂 retweeted
Pocta Margaret Hamilton (1936 – 2026), která nás nedávno opustila. kosmonautix.cz/2026/10/10/ma…
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Martin Wolker 🪂 retweeted
Should you cut a hole in the ground plane under the pads of a USB-C or HDMI connector? Some engineers swear by it, others say never. I simulated it 327 times to settle it. Answer: yes, when the pad is wider than the trace. And make the hole exactly the size of the pads. 🧵1/12
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Martin Wolker 🪂 retweeted
Turns out you can get laser cut sheet metal ~10x cheaper by pretending it's a solder paste stencil and ordering from @JLCPCB. Suck it, SendCutSend!
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Martin Wolker 🪂 retweeted
in-progress feature for showing return currents for DDR traces in tscircuit This video shows a ground pour void near the processor's dogboning which causes the return current to take a long path (this is bad!)
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Martin Wolker 🪂 retweeted
Claude now works inside Google Docs, Sheets, and Slides, and those files also open inside Claude. In Google Workspace, Claude sits in a sidebar next to your file, reads what you have open, and edits it in place. You can approve each edit before it lands.
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Martin Wolker 🪂 retweeted
We're opening pre-orders for the 192GB Framework Desktop this Wednesday morning Pacific Time. This has AMD's new Ryzen AI Max+ Pro 495, an open-end x4 PCIe slot, a pre-installed Noctua fan, and an optional pre-built config with Fedora pre-loaded.
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Claude Opus 5.5 continues to amaze me. Claude Opus 5.5 created a 3D printable enclosure for an existing PCB. Then it created this promo video for it. The PCB, the printable STLs and this animation are 100% just from prompting in Claude Code.
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My first Claude Opus 5.5 designed PCB by Claude Opus 5.5. This has been sent to JLCPCB for fabrication and assembly. Input: prompt >> Output: Assembled working board. Can you guess what it does and what I am using it for?
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Martin Wolker 🪂 retweeted
mfw there is no moat anywhere anymore
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It’s much more likely that someone will vibe-code it in KiCad.
Xpedition PCB is a good tool, expensive, but has really good interactive routing features. Was hoping to get a personal license someday to share projects of mine being routed like this. Saw some quotes recently, so getting a ballpark of current cost.
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Martin Wolker 🪂 retweeted
A je to venku 😍💪 Gratuluju @TheZuza!
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Martin Wolker 🪂 retweeted
🇨🇿 Asistenční systém Tesla FSD Supervised bude možné za stanovených podmínek používat také v Česku. Uznali jsme prozatímní schválení nizozemského úřadu RDW. Připojujeme se tak k Nizozemsku a dalším pěti evropským státům. Tomuto kroku předcházely měsíce odborného posuzování a jednání s českými i zahraničními odborníky a zástupci Tesly. Zajímalo nás především, jak systém funguje v běžném provozu, jak reaguje na dopravní značení a rychlostní limity a jak zajišťuje, aby řidič řízení stále věnoval pozornost. Důležité byly také zkušenosti ze zemí, kde už systém používají. Chceme moderním technologiím otevírat cestu na české silnice. Bezpečnost přitom zůstává na prvním místě. ℹ️ Co to znamená pro řidiče? Tesla FSD Supervised je stále asistenční systém. Řidič musí sledovat provoz, dohlížet na jeho činnost a být připraven kdykoliv okamžitě převzít řízení. Odpovědnost za jízdu zůstává plně na řidiči. 👉md.gov.cz/Media/Media-a-tisk…
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