The Clickspring Playing Card Press Is A Work Of Art

We have no idea what a playing card press is, nor do we care. All we know is that after watching [Chris] from Clickspring make his playing card press, we want it.

Digging a little deeper, [Chris] offered to make this card press for [Chris Ramsay], a magician who specializes in cardistry, or the art of illusions with cards. The feel of playing cards is crucial to performing with them, and a card press keeps a deck of cards in shape. Not a commonly available device, [Clickspring Chris] designed one in an elaborate style that brought in elements from [Chris Ramsay]’s logo.

Like all Clickspring videos, this one is a joy to watch, but in a departure, there’s no narration — just 30 minutes of precision machining and metal finishing. [Chris] has gotten into metal engraving in a big way, and used his skills to add details to everything from the stylized acorn at the top to the intricate press plate, all of which was done freehand. And those snakes! Made from brass rod and bent into shape by hand, they wrap around the side supports to form [Chris Ramsay]’s logo. All the brass ended up gold plated, while all the screws ended up with a heat-blued finish. Settle in and enjoy the video below.

It’s been a while since the Clickspring skeleton clock was finished, in which time [Chris] has been working on a reproduction of the Antikythera mechanism. His video output slowed considerably, though, when he made a new finding about the mechanism, an observation worthy of writing up as a scholarly paper. We can’t begrudge him the time needed to pursue that, and we’re glad he found time for this project too.

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Chemistry And Lasers Turn Any Plastic Surface Into A PCB

On the face of it, PCB production seems to pretty much have been reduced to practice. Hobbyists have been etching their own boards forever, and the custom PCB fabrication market is rich with vendors whose capabilities span the gamut from dead simple one-side through-hole boards to the finest pitch multilayer SMD boards imaginable.

So why on Earth would we need yet another way to make PCBs? Because as [Ben Krasnow] points out, the ability to turn almost any plastic surface into a PCB can be really handy, and is not necessarily something the fab houses handle right now. The video below shows how [Ben] came up with his method, which went down a non-obvious path that was part chemistry experiment, part materials science. The basic idea is to use electroless copper plating, a method of depositing copper onto a substrate without using electrolysis.

This allows non-conductive substrates — [Ben] used small parts printed with a Formlabs SLA printer — to be plated with enough copper to form solderable traces. The chemistry involved in this is not trivial; there are catalysts and surfactants and saturated solutions of copper sulfate to manage. And even once he dialed that in, he had to figure out how to make traces and vias with a laser cutter. It was eventually successful, but it took a lot of work. Check out the video below to see how he got there, and where he plans to go next.

You’ve got to hand it to [Ben]; when he decides to explore something, he goes all in. We appreciate his dedication, whether he’s using candles to explore magnetohydrodynamics or making plasma with a high-speed jet of water.

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Through Hole Plating And Milling At Home

Here’s a PCB fabrication process that makes us envious. It’s pretty darn close to fab-house quality at home. [Cpirius] is using a CNC mill and through hole plating technique to produce his double-sided circuit boards.

The video embedded after the break shows one board from start to finish. It begins with the mill drilling holes through some double-sided copper clad stock. Once the millings have been cleaned off the holes are coated with a mixture of waterproof ink and carbon. This prepares them for plating by making the holes themselves conductive. The board is then run through an electroplating process based on this guide.

Possibly the most interesting part of the process starts 52 seconds into the clip. The mill uses a conductive probe to generate a height map of the entire board. This allows it to vary the routing depth for perfectly cut isolation traces. That final routing process is pictured above.

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