Latest from the Blog
When an “Official” Upgrade Breaks a Working Workflow: My Ender-5 Plus Saga
Being a happy Creality owner for years, using it as a workhorse for our project prototyping in a good and bad days. It sort of worked out to the point when now where we are moving to the Phase II, I decided to keep up with this brand and expand on our manufacturing with some…
CF Tubes – Phase II: Heating Rig Test & First Wins
Over the weekend we finally achieved something worth reporting! As part of our airship design and Phase II scale‑up (see our Carbon Fiber Tube Sizing conversation around the H2Use project), we need to develop a new 19 m long, Ø 400 mm carbon‑fiber tube that can withstand the loads and deflections defined in our sizing study. Specs recap:…
Swapping Copper for Fiber: a tiny UART-over-Fiber link
We replaced fragile copper with UART-over-fiber between Arduinos, eliminating EMI jitters and preparing our MQTT hub-and-spoke control plane for Phase II.
Effusion – “Helium vs. Hydrogen Atom Size” Review
In 2021, I wrote a blog post Helium vs. Hydrogen atom size exploring why I prefer hydrogen over helium for lighter-than-air applications. One of my key arguments was that hydrogen molecules, being larger (kinetic diameter 289 pm vs. helium’s 260 pm), should leak more slowly through the airship envelope. I likened this to a tea…
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