DIY Tachometer for Your Mill or Lathe

One of the new features in the upcoming version of TouchDRO app is tachometer readout. The beta version of the application had full tachometer support for some time now. Over the last few weeks I added directional tachometer support to all four controllers. In this post I will try to give you some ideas on how to build a tachometer for your mill or lathe using commonly available parts. Your setup will vary, of course, but the main principle will be the same, so you shouldn't have too much trouble to adapt these designs to your particular needs.

Android DRO Step By Step Overview

Since I added a DRO to my mill I can't imagine how I lived without one for so long; it makes working on the mill so much easier and more efficie. Since you're reading this post, you are probably looking into building a DRO as well, and if you feel lost, you're not alone. Although I've been trying hard to keep the project as simple as possible, so it remain accessible to people with little or no experience with electronics or computers, it might seem a bit overwhelming.I this post I will provide a quick summary of the steps needed to get a DRO up and running with links to more information where appropriate.