My 836 mill came with a 2 axis Sino unit with glass scales, so I upgraded it to 3 axis, and used the redundant 2 axis display on my lathe, which had 2 axis already fitted.

So eventually I ended up with 3 axis Sino readout on the mill (plus a digivern readout on the quill, Z2), and 4 axis Sino readout on the lathe. Not one of them has missed a beat in over three years.

I am just about to purchase another 2 axis Sino set from Machine DRO to fit onto my old surface grinder.

I just love working to tenths accuracy when needed.

This is the glass head Z1 axis setup on my mill.
I had a bit of trouble fitting it because the auto stop for the Z1 axis power feed wanted to be in the same place, but with a little bit of fiddling, I got both working in unison just fine.



The display is a very nice metal cased unit with plenty of features, that if you take the time to learn how to use them makes machining so much easier.



The heads on the lathe.
This was all done to allow me to use the shop as professional unit making high quality close tolerance parts, but not much later, bad health forced me out of the game, so I am now left with a shop and tooling that is a joy to use. I just have to get it so that everything can be done from a sitting position, just like Peter above.



Z2 Digivern fitted to the quill



And it's little display box (not shown in previous shot of Sino box) that sits nicely on top of the display.



Plus the capacitor fitted instead of the battery so that it can work from a wall wart sent thru a little box of tricks.




John