A nice collection of tips, tricks & guidelines for successful #3Dprinting:
https://blog.rahix.de/design-for-3d-printing/
#DIYtech #lab #instruments

#OpenSource low-cost #3Dprinted easy-to-build XYZ #micro-manipulator platform:

- #microscope stage
- #fiber #optics alignment
- micro #drilling

GitHub: https://github.com/0x23/MicroManipulator
YouTube: https://youtu.be/-mgqq0qdDRM
#DIYbio #lab #instruments #Maker #hackerspace #DIYtech #microscopy #imaging #electronics

A low-cost portable #OpenSource system for 3-axis measurement of static & extremely low #frequency #magnetic fields:
https://doi.org/10.1016/j.ohx.2025.e00683
#DIYtech #DIYbio #lab #instruments #hackerspace #ELF

The current media system is stacked against us. It’s rigged, exclusive, and hostile to alternatives.

That’s why we need the Open Media Network.

Because without an open, trust-based infrastructure for communication and coordination, we’re just shouting into silos.

Let’s build something different.
Let’s make history — together.

Why It Matters

If metadata is the new currency, then open metadata is the new commons. Capitalism runs on closed systems — the #OMN runs on shared knowledge and decentralized trust.

This isn’t about perfect tech. It’s about:

Human-scale trust
Community autonomy
Fast, messy, democratic distribution
Real-world resilience

It’s not utopia. It’s compost — and we’ve got the shovels.

Live PC Build Moved: Join Leo & Richard Campbell Thursday, July 21 at 1 PM PT for a live PC assembly tutorial—parts selection, build tips & on‑the‑fly troubleshooting. Ask in chat, get answers live!
Join Club TWiT: https://twit.tv/clubtwit #PCBuild #DIYTech

My finished #DIY #solderfumeextractor.
The fumes are sucked in and pushed out through the flexible tubing which I hang out of my window.
It's powered by USB-C (12V) and can handily be plugged into my @iFixit #FixHub's second USB-C output as I've integrated a USB-PD trigger board.
The project is made from the packaging my FixHub came in - that's what I call #upcycling ;)

[Project inspired by YouTuber "DIY Perks"]
#DIYPerks #soldering #ifixit #ifixittools #fumeextractor #diytech #diyprojects

Open Lab Starter Kit Small Laser V2 - An #OpenSource #FabLab produced #LaserCutter:

- 40 W CO2 #laser cutter
- materials: plywood, acrylics & MFD
- cutting area of 400 mm x 600 mm
- #ATtiny / #Teensy -controlled

https://doi.org/10.1016/j.ohx.2025.e00664
#OLSK #DIYbio #lab #instruments #Maker #hackerspace #DIYtech #DIY

#OpenSource #syringe #pump library:

- #3Dprinted & off the shelf parts
- #RaspberryPi -control

https://doi.org/10.1371/journal.pone.0107216
#DIYbio #DIYtech #DIYchem #chemistry #lab #instruments

Using the recycled parts of a computer DVD drive for fabrication of a low-cost #Arduino-based #OpenSource #syringe #pump:

-flow rates: 0.005-1 mL/min with a maximum of 10 μL difference
-cost: < US $30

https://doi.org/10.1021/acs.jchemed.1c00260
#DIYbio #lab #instruments #fluidics #chemistry #science #research #microfluidics #DIYchem #DIYtech #education #STEM #MINT

#AIB3: All #iron, highly #rechargeable, low-cost #OpenSource #battery 3.0:

-stable for 100+ cycles with 84 % capacity retention
-operation: -10°C to 60°C

https://doi.org/10.1016/j.ohx.2025.e00629
#DIYtech #DIYchem #chemistry #lab #instruments #energy #sustainability #renewable #electricity #power #environment

SwitchBot goes next-level with the K20+ Pro: a multitasking household robot that vacuums, purifies air, patrols your home & delivers small items. Powered by modular FusionPlatform™ for DIY & smart home pros.
#SmartHome #Robotics #HomeAutomation #SwitchBot #DIYTech #TechNews #OpenHardware
https://www.movetheneedle.news/technology/switchbot-unveils-k20--pro/

Currently working on a DIY solder fume extractor for my new @iFixit #FixHub soldering station. As a soldering novice I'm actually quite proud of what I've done so far :)

Stay tuned for another post once I've finished the project (currently still waiting on a USB-PD Trigger board tho so I can try powering everything directly from the FixHub's second USB-C port)...

[Project inspired by YouTuber "DIY Perks"]

Went to a machining expo “just to look.”
Left emotionally attached to a CNC lathe and googling the price of a 5-axis mill.
Send help. Or tools.

#MachiningExpo #CNCmadness #EngineeringNerd #STEMlife #MelbourneEvents
#Engineering #TechTok #Innovation #Manufacturing #DIYTech

https://youtu.be/LKYaJ0xwRng

Umfrage zum Raspberry Pi Workshop – Deine Meinung zählt!

15. Mai | Datenburg Bonn

Du hast spannende Ideen oder Wünsche für den nächsten Raspberry Pi Workshop?

Die Umfrage dauert nur 1 Minute und hilft mir, das Programm auf euch zuzuschneiden. #RaspberryPi #WorkshopBonn #MakerCommunity #Datenburg #RaspberryPiWorkshop #TechEvents
#SmartHome #RetroGaming #DIYTech #Umfrage #OpenSource #IoT #PiPower

#SteadyCommunityContent

Nach dem Einbau des #Raspberry Pi 4 in das mysteriöse #Gehäuse kommt jetzt die #Inbetriebnahme.

Mit #Linux arbeite ich zwar selten, doch grundsätzlich komme ich damit klar. Wo früher noch mühsam gegoogelt oder #Manpages konsultiert wurden, frage ich heute einfach #ChatGPT. Das geht für eine Root-Cause-Analyse bestimmt 100-mal schneller. Also, womit fange ich an?

https://tino-eberl.de/nutzen-kuenstlicher-intelligenz/raspberry-pi-4-einrichten-mein-weg-zum-stromsparenden-mini-pc-fuer-python/

Old PC gathering dust? Install Ollama & Spready to run AI models and crunch data like a pro. Affordable tech for everyone! https://matasoft.hr/qtrendcontrol/index.php/un-perplexed-spready/un-perplexed-spready-various-articles/145-leveraging-ai-on-low-spec-computers-a-guide-to-ollama-models-for-un-perplexed-spready #AI #LLM #spreadsheets #artificialintelligence #DIYtech

In going through Monday’s E-mails, I found alerts about disk drives pulling errors in Sherman’s array. I have 2 16 TB drives in order and 2 coming for spares.

It’s usually a good idea to replace these when ZFS begins to detect errors rather that waiting for the to blow.

The array is RAIDZ2 so covered for 2 drives choking.

Usually, the re-silver operation will kill the second drive. So saying prayers.

Self-Hosting Journey Update!

After weeks of work, I'm excited to share my self-hosted setup! I'm running everything on a Raspberry Pi 500 with Stormux (Arch Linux ARM-based), 8 GB RAM, and a 512 GB SD card (planning to upgrade to SSD or NAS as soon as I can afford it). Here's what I’ve built so far:

Services in Action:
- Development: Forgejo, Code-Server, Woodpecker CI
- Productivity: Joplin Server, Monica CRM, Homepage dashboard
- Monitoring: Prometheus + Alertmanager, Grafana, Netdata, Uptime Kuma
- Networking: AdGuardHome + Unbound, Tailscale VPN
- Tools: MiniFlux, Linkding, TheLounge
- Management: Portainer, Cockpit, Watchtower

Security & Access:
- Caddy + Cloudflare Zero Trust/Access for reverse proxy & SSO
- FirewallD + Fail2ban for extra protection

Emails Powered by Zoho ZeptoMail:
All email-capable services (e.g., Forgejo, Joplin) are configured for reliable notifications.

Backups: Using IDrive's 5 TB plan for peace of mind.

This journey has been challenging yet rewarding! I'd love to hear your thoughts—especially tips on scaling storage or optimizing performance. Let's chat!

#SelfHosting #RaspberryPi #Linux #ArchLinuxARM #Stormux #Tech #OpenSource #DIYTech #HomeLab #CloudComputing #AdGuardHome #Grafana #Prometheus #CodeServer #Portainer

@selfhost @selfhosted @selfhosting

Back to work on project Chowndolo! Improving the PCB design and making refinements using KiCad. Excited to take this to the next level...
#PCBDesign #KiCad #OpenSourceHardware #Electronics #Engineering #HardwareDesign #Maker #DIYTech #EmbeddedSystems #CircuitDesign #TechInnovation #ProductDevelopment #EDA #SchematicDesign #Prototype #IoT #DIYEngineering #ElectronicsEngineering #SoundArt #DigitalLutherie #MusicTech #ExperimentalSound #DIYInstruments #ElectronicMusic #InteractiveSound