Monday, September 16, 2024

Grow Copper Crystals with Electricity

As always, be careful out there, folks. This experiment does involve running electricity through a solution.

This process does seem to result in some really pretty crystals.

And I'll admit that I kind of enjoy the simple, non-mugging style that the Backyard Scientist has gotten away from over time.

Monday, September 9, 2024

ROBOFORMING: The Future of Metalworking? (I Had NO IDEA This Was Possible) - Smarter Every Day 290

There is so much happening in manufacturing that I am blown away by.

I understand the absolute minimum basics of forging, stamping, casting, and a few other processes, but this concept of slightly deforming a metal sheet by pushing with two (by the company's founders) end effectors without any mold and just using CNC robotic arms is amazing to watch. The process is referred to as incremental forming.

The amount of computing power required to do all of this is stunning to me.

I think manufacturing might be becoming more complicated over time...just maybe.

This second video is ninety-four minutes of behind the scenes footage that Destin edited down into the thirty minute video up top.

Monday, September 2, 2024

Making and Casting (Principles of Metallurgy)

This is a very information dense video explaining...

  • where iron ore comes from and what it contains
  • how blast furnaces purify iron from ore
  • forming the iron from the furnace into steel
  • arc furnaces melting and purifying already formed steel
  • further steel refining
  • casting of the steel into shape via...
    • sand casting
    • continuous casting
    • ingot casting
This would be a great summary of the steel processing processes in class.

There's not much exciting to watch. I'm keeping the tone of my writing this week in line with the tone of the video so you know what to expect.

Thank you for reading.

Monday, August 26, 2024

Roads Can Be Recycled Forever, Why Don't More Cities Do It? | World Wide Waste | Business Insider

I toured an asphalt research lab when I helped lead the second year ASM camp at Rowan University a few years back. Before that I'll admit that I hadn't put much thought into the different compositions that make up asphalt roads or the research that went into 'perfecting' the recipes used in road building.

Today's video introduces us to Green Asphalt, a company that is taking asphalt removed from roads and processing that asphalt into a reusable product, preventing hundreds of thousands of tons of asphalt from landfills every year.

I think I wrote it a few weeks back, but man, we make a lot of waste.

Monday, August 19, 2024

5 Kinds of Glass Made by Nature

Obsidian...opals...tektites...fulgurites (including their subsets, apparently)...glass sponges

I knew about a couple of those, but I'll admit that I'd never heard of glass sponges or tektites, and I didn't really think of opals being glass.

Monday, August 12, 2024

Inside London's 'zero waste' restaurant | FT Food Revolution

We produce a great deal of waste. That's not a very debatable statement.

This video visits a London restaurant that is attempting to have zero waste from his restaurant.

From making the pendant shades out of waste seaweed to forming their own pottery on site and glazing that pottery with ground up waste wine bottles, the restaurant attempts to have nothing thrown away from day to day.

They ferment much of their food scraps that would normally be wasted and thrown away.

They upcycle their plastic bags into serving plates.

Somehow the ice cream is made from waste bread.

All in all, it's a place that I would love to study more but that I'm not sure I would actually enjoy. Some of the cuisine seems to be awfully fancy, and I'm not sure that my tastes are in line with.

Check out Silo if you're ever in London - and if you can actually get a reservation.

A Failure of the Imagination from ENGLAND your ENGLAND on Vimeo.

Monday, August 5, 2024

Making your own impact tester

So, a bit of a story...

I was watching this video on trying to build 3d printed objects by using half layer offsets...


...and got halfway through when I saw the YouTuber test his products with what seemed to be a homemade Charpy-esque impact tester.

5:38 in the above video

That homemade impact tester is something we've been talking about in our summer camps as a hypothetically simple thing to build, but our discussions tend to be fairly abstract and general - not at all specific as to plans that could be followed. This, however, looks to be something fairly specific and even branded by CNC Kitchen's blue and white logo.

So I went searching and came upon this video by CNC Kitchen that shows a homemade tensile/compression tester at about 8:15, a three-point bend tester at 10:45, and the same impact tester at 12:10.


So onward I went to find plans for the various testers.

I did find a video showing how to make the tensile/compression tester.


...and another for the 3-point bend tester.


...but I wasn't able to find a video for how to make CNC Kitchen's impact tester. Luckily, the impact tester's plans are available online.