Water cooled spindle bit me lol

[John51]

I'd already done a rough and ready test of the spindle in my kitchen using 'anywire'.

Today I wired up the 4 core screened cable, all earthed and as before, had the cooling water running to waste into the sink.

Spindle felt nice and cold with not much flow so I wondered what the temp of the waste water was like. As soon as my finger was wet I got a HUGE static shock. Wow that woke me up.

 

[flh801978]

And was the water warm?
will you be using a recirculating system
I have just ordered a chinese 2.2kw one
I'd be interested in how you get on with it

Ian

 

[John51]

No the water wasn't warm.

I will be using a recirculating system, haven't decided on a pump yet. The Chinese VFD has a real cheap keyboard, every bit as bad as the Science of Cambridge MK14 'computer' I bought from Uncle Clive over 30 years ago.

I'll be fitting a speed control pot to minimise keyboard usage.

The spindle itself runs very quiet.

 

[Myfordman]

Don't forget the antifreeze if there is any chance at all of the spindle dropping below zero degrees.
I had quite a job fixing a spindle with a cracked water jacket when a mate let his freeze up. It was nearly a write off.

 

[John51]

Good point Bob. I think I'll be ok as the workshop is a bedroom but a bottle of antifreeze isn't going to break the bank.