Category Archives: xy table

Smiling Robot Moves Without Wires

What could be cuter than a little robot that scuttles around its playpen and smiles all day? For the 2018 Hackaday prize [bobricius] is sharing his 2D Actuator for Micro Magnetic Robot. The name is not so cute, but it boasts a bill of materials under ten USD, so it should be perfect for educational use, which is why it is being created.

The double-layer circuit board hides six poles. Three poles run vertically, and three of them run horizontally. Each pole is analogous to a winding in a stepper motor. As the poles turn on, the magnetic shuttle moves …read more

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Hacking a Metallurgical Microscope

[Amen] wanted to inspect ICs on the PCBs for suitability for reuse, so he bought a metallurgical microscope that illuminates from above rather than below, since it normally looks at opaque things. It has a working distance of 0.5 and 10mm, which isn’t a lot of room to solder.

The microscope didn’t come with a slide tray, so [amen] found a cheap one on eBay. Needing a connector block, he melted down some food trays into an ingot, which he then milled down into a block shape, drilled, and used to attach the slide tray to the microscope.

The thing …read more

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