Senior Hardware Developer @Prusa3D 🧡 posting about Life, Electronics, 3D Printing, Aikido, Tesla, Motorcycles and Paragliding.
Prague, Czech Republic
Joined May 2011
- Tweets10.5K
- Following843
- Followers1.2K
- Likes18.3K
Pinned Tweet
Wild times when running a 3D printer feels easier than dealing with those old 2D ones. 😎
Martin Wolker 🪂 retweeted
Jeden prodej = jedna konzerva pro zvířecí útulek. Pro tuhle neobvyklou, ale o to milejší rovnici se rozhodl @TheZuza. Herní vývojář, který spojil zkušenosti z ČVUT, z práce pro Průšu i vzpomínku na svou milovanou kočku. cc.cz/za-kazdy-prodej-da-kon…
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. 🧵
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 🧵
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.
Martin Wolker 🪂 retweeted
Here is the next-gen Tesla Roadster development video from the unveil event that they shared exclusively with us.
Martin Wolker 🪂 retweeted
Pocta Margaret Hamilton (1936 – 2026), která nás nedávno opustila. kosmonautix.cz/2026/10/10/ma…
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
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!
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.
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.
Martin Wolker 🪂 retweeted
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.
Martin Wolker 🪂 retweeted
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?
Martin Wolker 🪂 retweeted
@blind_via as I said 🙃: xitter.cf/i2cjak/status/21028647…
It’s much more likely that someone will vibe-code it in KiCad.
@blind_via as I said 🙃: xitter.cf/i2cjak/status/21028647…
