Digital Calipers DRO Digital Read Out
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 ... more
DRO-350 Quill Scale
Mark Ho - artist in metal
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