Oh Blimey I bought a CNC Lathe !!!!

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lordedmond:
By ek that psi board has seen some heat on that resistor :zap:

Con crats on the ready state

now for the big question dare you power up the spindle and make it do something

well done 10 extra points for perseverance

Stuart

awemawson:
A bit more progress. OK it seems that there is a sequence you have to go through to get the hydraulic pump going. Now it is ....

I can:

a/ Jog the X axis both +ve and -ve

b/ Jog the Z axis both +ve and -ve

c/ Jog the V axis only away from the main spindle (this is the auxiliary spindle)

d/ Rotate the C2 axis to its datum (this is the auxiliary spindle rotary positioning)

e/ If I try to start the main C1 spindle I drop my 30mA RCD trip that is in my 3 phase distribution box

f/ I can open and close the hydraulic collet closer on both spindles

I'm not particularly surprised at e/ as no doubt the leakage of an 18kW inverter drive is high and most industrial rcd's would be 100mA

The result of c/ is that I have now jogged V to the end of it's travel and it is reporting a V axis overload (that pesky proximity sensor like the one I fixed on the X axis) There is a software switch to allow you to jog out of this condition, but of course the issue is I cannot jog in the right direction so I will have to dig into the mechanics and try and wind the motor back manually to continue fault finding.

vtsteam:
Ahhhhh, axis movement!!!! It's alive.......

Congrats! :thumbup: :thumbup: :thumbup: :thumbup: :thumbup: :thumbup: :thumbup: :thumbup:

Swarfing:
Well you had 'READY', what you just said sounds like 'STEADY', on the way for 'GREEN' to 'GO' :clap:

awemawson:
So today's task: Reset that V axis overload clutch.

Obvious thing to do is expose the drive to the ball screw, and hand rotate it in the opposite direction until the overload clutch clicks back into place. Only one problem, the drive servo motor is low slung at what would be the tailstock end of a conventional lathe sitting just above the huge swarf conveyor. There does seem to be an access cover however this involves moving the swarf conveyor to get it off. As this took four of us a couple of hours to maneuver into position when I got the machine, I'm loath to do that.

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