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Digital Calipers DRO

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Uploaded on Feb 3, 2010

We recently got a Smithy 1220XL lathe / mill combo machine, but we quickly found that the 0.042" resolution ticks on the milling head's Z-axis were a big limitation. In this video tutorial, we show how we used a USB NerdKit plus a digital caliper to create a simple digital read out, or DRO, for this machine's Z-axis. The video above talks about how we built it, including the mechanical implementation, the code, as well as some electronics concepts such as how to interface buttons and switches to a microcontroller.

For more information about this project, see:
http://www.nerdkits.com/videos/digita...

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