Day: November 4, 2022

Thin Client And Smartphone Step In For 3D Printer’s Raspberry Pi And Touchscreen

November 4, 2022 by 19 Comments

It’s no secret that Raspberry Pi’s are a little hard to come by these days. Unless you had the foresight to stock up before the supply dried up — and if you did, we want to talk to you — chances are good that you’ve got a fair number of projects that use the ubiquitous SBC on indefinite hold. And maybe that’s got you thinking about alternatives to the Pi.

That’s apparently what was on [Crimson Repair]’s mind lately, the result being the discovery that an old thin client PC makes a dandy stand-in for a Raspberry Pi, at least in some cases. The video below is on the long side, true, But it’s chock full of command-by-command instructions for getting a Dell Wyse 3040, a thin client that can be found on the secondary market for $25 or so, up and running as a Klipper alternative for a 3D printer. These machines, which usually see use in point-of-sale applications and the like, sport a 1.4-GHz Intel Atom processor and a couple of gigs of RAM, and the form factor is just right for tucking into the base of an Ender 3.

Getting one up and running is a matter of getting a Debian image onto a USB key and configuring the thin client to boot from USB. After that it’s a simple matter of installing Klipper and wiring up a buck converter to power the machine. It’s not exactly rocket surgery, but why muddle through the process when someone has already been down the path ahead of you? And if you want to take it further, the second video below walks you through all the steps needed to add a touchscreen using an old Android phone. With a 3D printed bracket, the whole thing is a nicely complete printer control solution.

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A blue cabinet. Inside, along the front and back are wooden sawteeth holding a cleat. On the cleat sits the shelf itself.

Adjusting Shelves Like It’s 1899

November 4, 2022 by 39 Comments

In most modern homes, any adjustable shelves or cabinets have metal shelf pins set inside conveniently spaced holes. Before the accoutrements of modern life, like easily replicated metal parts, you may have found a sawtooth shelf doing the same job with just wood.

The system comprises three parts: a series of “sawteeth” running up and down the front and back edge of a cabinet, a cleat to sit between the teeth, and a shelf with notched corners that can then be set down on the cleats on either side.

While not as convenient as running a drill through a shelf pin jig, this method has a certain charm and sturdiness that isn’t present in more modern methods of making adjustable shelves. We can see this being particularly useful for restoration projects of homes from the 19th Century or earlier where you want some of those aforementioned accoutrements without things looking too anachronistic.

If you want some shelving that’s decidedly more 21st Century, check out this MP3 Player Shelf or this Smart Shelf with Serious Functionality.