In article ,
GeoLane at PTD dot NET GeoLane at PTD dot NET wrote:

I'm looking for the best economic bang for the buck and I have little
or no experience with DROs. My Bridgeport mill came with an old
Anilam MiniWizard with the red lighted digits and raised push buttons.
The mill only had the Y axis scale. I'd like to get an X axis scale
for my 42" table. I think the DRO works since the digits change when
the table moves, but I have no idea how to use the keypad other than
setting zero via the reset button, so I can't tell if other functions
work.

The guy on eBay who sells Jenix replacements says it needs a 36" scale
which gives 30" of travel. I measured my table travel and it's 37.5",
so that part sounds ok.

Huh? If you need 37.5" of travel, and the "36 inch" unit provides only
30" of travel, things will not go well at the ends of the travel range.
You have alomst 8" of too much travel. A B-port is quite capable of
breaking a Jenix scale.

Joe Gwinn