Hi all, I have a recently 're-juvinated' 135 which I have documented the process of on this forum 'Project Schaublin 135', a huge amount of help and pointers from the group along the way made the process much easier which is fantastic, I am in the process of adding a 2 axis DRO system to the 135 on this thread but wanted to explore another challenge too - the electrics.
I felt it needed a new thread and as always looking for help as I am NO electrician. I did completely change the electrics on a Hardinge HLV a few years back, it was tough but all worked out in the end so hence this thread. Picture posted of the finished electronic bay.
Like all machines (and classic cars/bikes) it's normally the electrical systems which are the achilles heel and in the case of my machine a few items are not working as they should, brake and high speed range spring to mind, there are others too.
The 135 has a two speed main motor (3ph), a coolant pump and the oil circulation pumps, not sure of the type or voltage on these, I do have drawings of the electrical circuits but have not fully studied them.
So clearing out the old system and its archaic components and replacing them with newer devices should/would be good IMO, it cannot be that complex for someone in the know and I would love to take a close look at what's involved and what components would be required to bring the electrics into the 21st century.
- So has anyone already done this, first obvious question and if so would they share the process/outcome/design?
- If not who might be in the know to potentially guide someone like me through the process? I have the ability to build, assemble, solder and wire such a device just would not know what components and where to start to design a replacement system.
Anyone able to guide/assist or point me in the right direction?
PS one question, my 135 is powered by a phase converter, input 240v single phase (UK) and outputs 370-400v 3ph to the machine, the load on the convertor so I have been told when high range is selected creates a voltage drop which kicks the contractor open (sprung loaded item in the original electronics) on the lathe and results in me rarely being able to use the high speed range as it trips out. It's not the end of the world as most jobs can be achieved at the mid speed range but it's one thing I would like to fix in this process.
Would prefer to deliver the power via the phase convertor as don't want to change out the motor (not sure you can get a 2 speed 240v motor of the required HP anyway). I guess what is required is when selecting high speed the motor speed ramps up over a few seconds rather than bangs right in, so designing this into the electronics to ramp up the motor speed on start up would I think be a worthy consideration. Naturally if I'm talking out of my rear end on this then put me straight
OK lets see what you say ........
HLV new electronic bay:
I felt it needed a new thread and as always looking for help as I am NO electrician. I did completely change the electrics on a Hardinge HLV a few years back, it was tough but all worked out in the end so hence this thread. Picture posted of the finished electronic bay.
Like all machines (and classic cars/bikes) it's normally the electrical systems which are the achilles heel and in the case of my machine a few items are not working as they should, brake and high speed range spring to mind, there are others too.
The 135 has a two speed main motor (3ph), a coolant pump and the oil circulation pumps, not sure of the type or voltage on these, I do have drawings of the electrical circuits but have not fully studied them.
So clearing out the old system and its archaic components and replacing them with newer devices should/would be good IMO, it cannot be that complex for someone in the know and I would love to take a close look at what's involved and what components would be required to bring the electrics into the 21st century.
- So has anyone already done this, first obvious question and if so would they share the process/outcome/design?
- If not who might be in the know to potentially guide someone like me through the process? I have the ability to build, assemble, solder and wire such a device just would not know what components and where to start to design a replacement system.
Anyone able to guide/assist or point me in the right direction?
PS one question, my 135 is powered by a phase converter, input 240v single phase (UK) and outputs 370-400v 3ph to the machine, the load on the convertor so I have been told when high range is selected creates a voltage drop which kicks the contractor open (sprung loaded item in the original electronics) on the lathe and results in me rarely being able to use the high speed range as it trips out. It's not the end of the world as most jobs can be achieved at the mid speed range but it's one thing I would like to fix in this process.
Would prefer to deliver the power via the phase convertor as don't want to change out the motor (not sure you can get a 2 speed 240v motor of the required HP anyway). I guess what is required is when selecting high speed the motor speed ramps up over a few seconds rather than bangs right in, so designing this into the electronics to ramp up the motor speed on start up would I think be a worthy consideration. Naturally if I'm talking out of my rear end on this then put me straight
OK lets see what you say ........
HLV new electronic bay:
