Hello, Wayne888 sorry for the very late reply.Hello ...whoops .....I don't follow this group. It was just something I happened to come across in 2015 and could provide a little info.
Sorry Patrick, yes I have the schematic for your machine with 2HP DC spindle drive. I'm not sure if you visit this site anymore, and I am not sure if it would be prudent to put my email address here. I'll try connecting by some other method.
For "servo_Ian", the motor frames are Nema 34 for both axis and toolchanger. You can determine the motor rating by the motor lengths which are all the same at 94mm. I believe it is in the 1,000 in-oz area (62 in-lbs, 7 Nm) You can do whatever other conversions from here. If you insist on servos, you will have serious problems with refitting as they are longer than open-loop steppers. This may sound incidental, but if you have the 2HP machine, your X-axis will hit the guard at the extreme travel, and you will have the same problem on Z-axis. You don't need a servo on the tool changer.
I am in the process of converting the 3HP. I did the first conversion with Camsoft. I won't make that mistake again. When a software adjustment was needed/made, then "something that did work" now no longer worked. This went on and on for years. Now, the G74 which they claim is standard, no longer works .....and they want more money to fix. No thanks. I done with the Camsoft mickey-mousing around. I will be going with Centroid. Their boards are ready to go as is the major portion of their software. One other primary change will be a very significant change in the spindle encoder. Complete replacement for an industrial encoder with standard very high resolution.
I was just curious about what Boxford is doing these days with innovation and technology with their machines. Well it appears very British. They have regressed. Their solid CNC machines are gone. It would appear their management is not going to be compete with the rest of the world. The machines are now only for teaching principles. Students will not be taught about "material removal", or "material removal rates". These machines are now only for plastic and plastic chess sets.
Just saw a "Boxford Promotional Video" of their "purpose built" plant ...with some "princess" proudly standing at front-and-center at the end ....with what may have been all 42 employees. ....sad.
I've been very hill (3years) since I posted the message you've answered and I have left everything down. But as I start to recover, I'm back into the game. If you still have the schematics of the Boxford 250 pc I would appreciate If I could have a copy . I'm planing to go with centroid acorn, new steppers and drivers but thinking to replace the spindle motor with a 1.8 KW DMM tech servo motor with a 1 to 1 ratio.