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Alllmost done with the layout for rev 5 of the Deimos DAQ! The sensor frontends are set, just have to route the signals and power rails, and it'll be ready to send off for fabrication.

This rev reworks the channel configuration to add more raw voltages, swaps screw terminals out in favor of lever-wire connectors, and adds active analog filters on every input channel. Despite a host of improvements, this rev is smaller, cheaper, and uses fewer unique parts.

I'm also going to try something new with signal routing, and send most of the routing around the outside instead of through the middle. I already have to reserve space around the outside for silkscreen labels, which leaves some convenient space for routing; using that space instead of the middle then relaxes constraints on the shape of the sensor frontend circuit blocks.

Given that I want to target i486 with @OS1337 but don't want to deal with obsolete hardware that is dying of old age, I think it's more fitting to consider a sort-of mainboard to shove some 486SX-SOM with PC/104-Plus on and have the few necessities hooked up to it. Maybe even put it inside a THINN #Pizzabox-style #case?

It would also make a new "bridge" machine to interface old PCI & ISA hardware and allow connecting i.e. a #QuadFlop and roll with that...

github.com/OS-1337/tiny486

Thoughts, @rasteri @polpo @TechTangents @lazygamereviews @foone ??

Precious Plastic - designers of open source hardware plastic recycling machines need your support! They are a very small team and launched a whole community of REAL recycling communities worldwide who use their DIY machines to recycle plastic waste into useful new objects, keeping the waste out of landfill, but they are having financial difficulties because of a long chain of mishaps and problems. See preciousplastic.com/news latest post for details #recycling #preciousplastic #opensourcehardware #community

🚜 What if the Unimog had stayed in the commons?
Born post-WWII to serve many, built to last, the Unimog met global demand — and then its creators went bankrupt. Not from failure, but from success.

They sold to Daimler. The rest is planned obsolescence.

What if they had released the IP instead?

🔗 eduzen.bearblog.dev/the-unimog

educationZEN🚜 The Unimog That Could Have Been: A Post-Growth ParableIn the shadows of World War II, when Europe was rebuilding itself from the ashes, a curious machine was born — one that seemed to embody resilience, versatil...

@jbqueru Also I hope for #RISCv to be the #ISA of the future for long-term #OpenSourceHardware and support.

#ARM64 - just like #amd64 - is yet another proprietary ISA and almost all devices with it in terms of #Laptops have #AntiRepairDesign like #Apple's #MacBook|s that self-destroy their #SSD|s which also contains it's #EFI / "#BridgeOS", making machines with fried SSDs 'braindead'

And yes, #RAM to also fails and making it not fully replaceable and upgradeable is inherently bad and I'm still mad at @frameworkcomputer for their botched #FrameworkDesktop #PC!

  • Cuz it's neither necessary nor beneficial for a #Desktop PC, unlike with the #Framework12 where the #SoC used only supports single channel and a single SODIMM so it makes sense for them to take that into account.

Oh no, Openbuilds goes out of business 😓

The CEO Mark Carew invented the V-Slot extrusion in 2013. We use them on the Bear because the V shape offered an easy alignment during the assembly and more flexibility for the printed parts (no support needed).

Everything must go, check them out:
us.openbuilds.com

Thank you Openbuilds and the community for those 12 years 🙏❤️

us.openbuilds.comOpenBuildsDream It - Build It - Share It with OpenBuilds