Hey there..
I have this bridgeport and the backup batteries has run out of power,then i replaced them and reentered all the machine parameters,then i get it almoust running it cut get the x,y,z in reference.
But then ill try to get the spindle runnung so i go in manual mode and press the tool call button and entered spindle rpm at 200 and enter, but it just says that the spindle rpm is `invalid`??
What are im doing vrong...
The bp is from 1987 and has being standing whit no power on for about 2 years,i gat it for almoust nothing and now its standing in my new shop and it cut be fun to get it running again.
Regards
Henrik
Denmark.

Probably best to ask on the CNC Zones Bridgeport forum.
Hood