Charnwood W850 LCD display issues

[griffdm]

Hi all,
Wonder if anyone may be able to help, the digital display on my lathe just sits at 0000, i have checked the sensor (though not with a mulitmeter) would anyone know where i can get spare parts for the lathe?

Possibly a replacement LCD or sensor

Thanks
Darren

[Bill21]

If you can’t source OEM spares and don’t mind a bit of DIY this may be a possible solution?

[griffdm]

Hi Bill,

I've bought one of those, struggling to find a location for the magnet though as there is no free spindle space inside the lathe

Thanks
Darren

[David Buskell]

I wonder if those would work with a VB36?? Would be interested to know if anyone has and if so, how they got on

[Twisted Trees]

I wonder if those would work with a VB36?? Would be interested to know if anyone has and if so, how they got on

It should, you will also need a 24v power supply and  a magnet fixed to the spindle <10mm from the sensor. So some bracketry may be needed and obviously some space to install it.

[Bill21]

I wonder if those would work with a VB36?? Would be interested to know if anyone has and if so, how they got on

Provided there’s space for the components I don’t see why not.

https://youtu.be/OCzfDkmDPio

[Paul Hannaby]

Hi all,
Wonder if anyone may be able to help, the digital display on my lathe just sits at 0000, i have checked the sensor (though not with a mulitmeter) would anyone know where i can get spare parts for the lathe?

Possibly a replacement LCD or sensor

Thanks
Darren

The sensor is either hall effect (magnet) or optical (usually a shiny piece of tape). If the tape type, check the tape on the spindle is clean and with either type, check the alignment of the sensor and the magnet or tape on the spindle. also with the hall effect types, check the sensor isn't too far away from the magnet.

[griffdm]

The sensor is either hall effect (magnet) or optical (usually a shiny piece of tape). If the tape type, check the tape on the spindle is clean and with either type, check the alignment of the sensor and the magnet or tape on the spindle. also with the hall effect types, check the sensor isn't too far away from the magnet.
[/quote]

Hi Paul, mine is an optical sensor, I've tried moving it closer, it ia a small black sensor and a disc with slots cut out moves between it. I'll have to get a multimeter on it to see if there is any voltage

Thanks
Darren