0.25mm nozzle, clear PETG, Prusa, 6mm standard headphone jack, upcycled broken bluetooth headphones, three times larger battery, snap fit with no hardware, FreeCAD, 2nd print iteration, listening to it now, no tricks - it holds together firmly and is usable and actually sounds better than the original by a long shot from better headphone drivers I guess or proper soldering, oh and power button built into the flex of the design, OC only posted on Lemmy

https://www.youtube.com/watch?v=dUKE9JgXEdQ

Stupidity Epidemic? Are critical thinking, intelligence and civility on the decline?

Dude is not getting the views his content deserves for the quality and questions he asks and researches.

The info wore off the grip and I do not recall what it was. I think it was a German brand. These have been one of my favorite tools for a decade. The jaws are much more narrow than what is typical for side cutters and these handle like a surgeon's scalpel. Best of all, they can be sharpened many many times. Unfortunately, these are getting close to end of life from all of my sharpening and pivot pin wear. I want to get another set, but I have never been able to figure out the brand to find them again. They were given to me by a tech for a computerized Guru bicycle fit machine we had installed in one of our bike shops in 2012.

CAD modeling and hacking some old junk audio stuff with help

Bonus internet points for cheapskates

Just looking for basic glassware, bunsen, distillation, and stir plate for working with simple stuff related to circuit board etching, tinning, through hole plating, and some reverse engineering stuff like dissolving epoxy chip packaging for die shots. I'd like to be able to shape some glass. Above all, I'm looking for cheap stuff that is barely adequate in the few hundred dollars class total. Like I have no issues hacking a thrift store hotplate with a rare earth magnet on a small motor. Are there any cheap options to stay safe and functional?

Lots of people seem to like custom keyboards and programmable HID widgets. Saw this and it seems interesting. Being Adafruit it is commercial on some level but also well documented for replication and mods that are more useful than the average shared project.
https://www.youtube.com/watch?v=A8RW3y0CIgw

YT description:

Build a 3D printed USB chorded keyset inspired by the original Doug Engelbert "Mother of all Demos" keyset from the 1960's. This 5-finger keyset lets you type without moving your hand, entering full words and phrases by pressing multiple keys simultaneously as a chord. Read more link below

Learn Guide https://learn.adafruit.com/usb-keyset

USB Keyset Learn Guide: https://learn.adafruit.com/usb-keyset/

cross-posted from: https://slrpnk.net/post/23118905

https://www.artstation.com/artwork/8BEYG6

Successfully mining the first type-m astroid in near Earth orbit changes everything about human wealth on the planet. We live in a gravity prison of resource scarcity where almost all rare elements are sequestered in the core of Earth when it was last molten. Nearly everything we have is what remains from astroid collisions. An m-type astroid is the remains of a core of a differentiated planetesimal from the early formation of Sol. It is that same gravitationally focused concentration of rare resources Earth has plenty, of but locked away completely out of our reach. There could easily be more resource wealth in one such object than all that humanity has ever accessed in the entire Holocene.

https://www.artstation.com/artwork/XJERry

Biology is the ultimate and final human technology to master. So this is probably more in line with reality than it may at first seem. At least, that is why I like it.

Anton Petrov:
https://www.youtube.com/watch?v=wQh9ezBdoPM

Also cross-posted from: https://programming.dev/post/31467824

• A team of physicists at ETH Zurich has created a tiny metalens that can half the wavelength of incident light.

• They have achieved this using a special metal-oxide lens material called lithium niobate and through nanoscale pattern, stamped into the material.

• Such metalenses could be used as a security feature on banknotes or in the fabrication of ultra-thin elements for cameras.

• https://ethz.ch/en/news-and-events/eth-news/news/2025/06/ultra-thin-lenses-that-make-infrared-light-visible.html

https://en.wikipedia.org/wiki/Jaya_Sri_Maha_Bodhi

Jaya Sri Maha Bodhi Tree is a sacred bo tree (Ficus religiosa) in Mahamewuna Garden in the historical city of Anuradhapura, Sri Lanka. It is believed to be a tree grown from a cutting of the southern branch from the historical sacred bo tree, Sri Maha Bodhi, which was destroyed during the time of Emperor Ashoka, at Bodh Gaya in India, under which Siddhartha Gautama (Buddha) attained enlightenment. In 236 BC, the Buddhist nun Sangamitta Maha Theri, a daughter of Indian Ashoka, brought the tree cutting to Sri Lanka during the reign of Sinhalese King Devanampiya Tissa.[1] At more than 2,300 years old, it is the oldest living human-planted tree in the world with a known planting date. The Mahāvaṃsa, or the great chronicle of the Sinhalese, provides an elaborate account of the establishment of the Jaya Sri Maha Bodhi on the Island and the subsequent development of the site as a major Buddhist pilgrimage site.

Last post on this community got me into a rabbit hole of tree burls, that lead to burl poaching, then old trees in national forests and parks, to oldest trees in general, to asking the question what is the oldest known and documented arboreal living connection to someone from the past. Holy ginkgos, you can make that connection well over 2k years!