![]() ![]() The DTI clamp has a reamed 8mm holde to accept the DTI, plus a slit and M5 tapped hole to clamp the DTI. It has a reamed 10mm hole to accept the slider, with an M5 tapped hole and slit to clamp the slider in place. The slider clamp block has two M5 countersunk holes (you can only see one in the pic above), through which it is bolted to the extended faceplate. ![]() The extended faceplate is what its name suggests: the same as the original but 12mm wider, with two M5 tapped holes. Material is all bright mild steel, apart from the slider and push plate which are silver steel. They are all straightforward to machine and assemble. There are five parts as per the picture above. There was plenty of slack in the wires inside the thing to do this. Turning the readout the other way up was a simple matter of unscrewing the back plate, unclipping the reaout assembly and flipping it over. so that it would appear upside down in the photo below. In its original form, the readout was oriented the other way around – i.e. I have found it to be reliable and accurate – matching the reading on my 25mm Mitutoyo DTI in my own testing. It is CE-marked, although there is no mention of the manufacturer in the user guide or on the device (therefore the CE marking is probably bogus). ![]() I bought it off Alibaba: it cost about £50 and took a couple of weeks to arrive from China. Mine has a 50mm stroke and 0.01mm resolution. The design relies on a long-stroke digital DTI. I will add some plans when I get around to it (sorry). You may choose to complete this project at the same time as the cross-slide thrust bearing modification. This is only a couple of hours of work, which is well worth the effort. Like the other DROs, I completed this project more than a year ago and can’t imagine how I managed without it. After the success of the Z-axis DRO project and also the mill table DROs, I got DRO-happy and whipped up a solution for the cross-slide. ![]()
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