Boxford 165 HMC

[uli12us]

Always 100 rpm is a bit slow. If you haven't a problem to switch the motor manually on and off, maybe with the front switches, than you can connect the 2 wires directly to the relais, like original. Than you add a 10K rheostat to change the speed from a 10V connector to a outer contact. The slider goes to the +10V connector of the iso-Board. If I come to the machine the next days, I'll make some pics how the switches are connected in original. The CSMIO Board have 2 analog outputs, you need only one for the speed regulation of the motor.
If 16 machines are produced, then they are not so seldom, as I thought, but how much exists today?

[chris w]

Ok from the existing wiring on the drives you can see where they have been connected to the CS labs and you can also see the "extra" wire I have soldered onto the connector,
that hot wire you mentioned earlier goes to the large contactor (enable activated) which has a 240v wire to one of the contacts, so I am now in a position that I have no reverse (m4) but I have control of m3 but the spindle still runs slowly at power on I have got hold of the collet chuck in the spindle and it's not driven with any power,
have you got homing switches on your machine?
i have moved axes to their extremes tonight and marked it with a permanent marker to measure stroke lengths and see where is best to locate the switches, I found the CS labs mpg unit to be very notchy in movement I need to figure out how to smooth that out, but all in all much more positive about the machine now, thanks for your input guys.
chris w.