Hackaday Links: November 17, 2024

A couple of weeks back, we covered an interesting method for prototyping PCBs using a modified CNC mill to 3D print solder onto a blank FR4 substrate. The video showing this process generated a lot…

That’ll Go Over Like A Cement Airplane

Most of us have made paper airplanes at one time or another, but rather than stopping at folded paper, [VirgileC] graduated to 3D printing them out of PLA. Then the obvious question is: can you cas…

Do People Know What This Word Actually Means?

Please help support us on Patreon, read our goals here: https://www.patreon.com/truthstreammedia or Subscribestar here: subscribestar.com/truthstreammedia As context is very important for all videos, this message is to confirm that the purpose of t…

Microwave Forge Casts The Sinking-est Benchy Ever

As a test artifact, 3DBenchy does a pretty good job of making sure your 3D printer is up to scratch. As an exemplar of naval architecture, though — well, let’s just say that if it weren…

Print Wave Metal Casting

Direct 3D printing of metal remains out of reach for the hobbyist at the moment, so casting is often the next best thing, particularly given the limitations of 3D printed metals. [Denny] from Shake…

Old Knobs With A Cast Of Thousands

You have an old radio — in the case of [The Radio Mechanic], a Stromberg Carlson — and it needs new knobs. What do you do? You can’t very well pop down to the local store and find…

Lost Foam Casting In Action

Even though not all of us will do it, many of us are interested in the art of casting metal. It remains a process that’s not out of reach, though, especially for metals such as aluminium whos…

How To Cast Silicone Bike Bits

It’s a sad fact of owning older machinery, that no matter how much care is lavished upon your pride and joy, the inexorable march of time takes its toll upon some of the parts. [Jason Scatena…

More Microwave Metal Casting

If you think you can’t do investment casting because you don’t have a safe place to melt metal, think again. Metal casting in the kitchen is possible, as demonstrated by this over-the-t…

Retrotechtacular: The Master Hands Of The Early Automotive Industry

When motion pictures came along as a major medium in the 1920s or so, it didn’t take long for corporations to recognize their power and start producing promotional pieces. A lot of them are o…

Making A Concrete Sign

While paging through the feed a few days ago our attention was caught by something a little away from the ordinary in Hackaday terms, a DIY video about creating cast concrete signage from [Proper D…

Nuke Your Own Uranium Glass Castings In The Microwave

Fair warning: if you’re going to try to mold uranium glass in a microwave kiln, you might want to not later use the oven for preparing food. Just a thought. Granted, uranium glass isn’t…

1000 Aluminium Cans Cast Into A Guitar

Aluminium cans are all around us, and are one of readily recyclable. While you can turn them into more cans, [Burls Art] had other ideas. Instead, he turned roughly 1000 cans into a custom aluminiu…

Casting Parts In Urethane: Tips From A Master

When you want a couple copies of a thing, you can 3D print ’em. When you want a ton of them, you might consider making a mold. If those are the shoes you’re in, you should check out thi…

A Rotocasting Machine Sized For The Home Shop

If you’ve ever wondered how large, hollow plastic structures like tanks and drums are formed, you’re in luck: [Andy] not only fills us in on the details of rotational casting and moldin…

3D Printed Molds For Casting Rose’s Metal

Have you ever played with Rose’s metal? It’s a fusible alloy of bismuth, lead, and tin with a low melting point of around 100 °C. Historically, it’s been used as a solder for cast…

The Ins And Outs Of Casting Lenses From Epoxy

If you need a lens for a project, chances are pretty good that you pick up a catalog or look up an optics vendor online and just order something. Practical, no doubt, but pretty unsporting, especia…