Boxford A3 HSRi Axis overtravel and spindle overheating - help!

[Tom Aylwin]

Ok I personally would not go down the route of changing the MB until I had checked out the mechanics.
You mention that the spindle collet get hot and clamps get warm. Have you tried running the machine without the spindle running (doing fresh air cuts) and then see if the machine loses position?.
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You really need to give more info and a clear description of the problem you are having. ..Clive

Apart from my first post regarding the over-travel message I'm not sure what you need to know.

As it happens I did do a fresh air cut with the same outcome.
The first time when doing a proper cut it aborted but didn't dive into the work. Feed rate was running at 'half' speed.
Second time - the air cut - I ran at full speed (not sure why!); it did the same "Machine error - machine requested to move to x=123...blah" and aborted but this time also dived into the work before coming to a stop.
Is that any help?

[Tom Aylwin]

Apart from my first post regarding the over-travel message I'm not sure what you need to know.

As it happens I did do a fresh air cut with the same outcome.
The first time when doing a proper cut it aborted but didn't dive into the work. Feed rate was running at 'half' speed.
Second time - the air cut - I ran at full speed (not sure why!); it did the same "Machine error - machine requested to move to x=123...blah" and aborted but this time also dived into the work before coming to a stop.
Is that any help?

Also.... might it be the computer not keeping up?. The machine stalled on pretty flat part of the job so assume the computer wasnt being overloaded but mybe I'm being naive!

[Clive S]

Did you run it with the spindle off? When you did the air cut you said it dived into the work piece how much higher than the work was it? Did the spindle get hot? Do you hear any abnormal noise? ..Clive