Giant 20' x 3' x 2' router build

[EddyCurrent]

. . . it would be nice not to have to do anything to it though. Many thanks

I don't have a water cooled spindle but if I did this is something I would try.

Cold water header tank fed from mains water via ball cock, feeding small central heating pump (you can regulate the flow on these), return back to header tank.
Also an electric cutoff valve could be included, operated from the cnc control panel.
If the temperature got high I would include in the circuit a small central heating radiator, handy in winter.

[GEOFFREY]

I don't have a water cooled spindle but if I did this is something I would try.

Cold water header tank fed from mains water via ball cock, feeding small central heating pump (you can regulate the flow on these), return back to header tank.
Also an electric cutoff valve could be included, operated from the cnc control panel.
If the temperature got high I would include in the circuit a small central heating radiator, handy in winter.

Eddy, i,m sure you could make that a bit more complicated if you really tried!!! G.

[EddyCurrent]

Eddy, i,m sure you could make that a bit more complicated if you really tried!!! G.

Haha very good !, the thing is I had all those parts lying surplus (i.e. free) before Mrs. decided garage needed clearing out.

[charlieuk]

Yea I'm know expert but I think that may be a bit over the top. The amount of surface area that 15m of tube has for the small amount of water inside and the temperatures we get over here and the load it will be under I don't think I will be fine just need to find a suitable pump that can run for a good few hours. I have been given a 240v pump that's destined for corrosive materials but can't help thinking its ott and going to be a waste of power?

[EddyCurrent]

Yea I'm know expert but I think that may be a bit over the top.

No way, those were just my first thoughts
If you get the extremes sorted out, the answer lies somewhere between.

[JAZZCNC]

Charlie I've recently experimented with a 120mm PC radiator and fan with small PC pump with reservoir and it worked a treat thou I didn't cut with it for long and but did leave running at full speed for 6 hours and it hardly got warm.
I'm going to fit to my own machine and do some real world testing cutting aluminium when I get chance but don't hold your breath waiting.
If you want to try it then I'm 99% confident you won't have any troubles for what your doing and it will be very neat and travel with the spindle.

[charlieuk]

Charlie I've recently experimented with a 120mm PC radiator and fan with small PC pump with reservoir and it worked a treat thou I didn't cut with it for long and but did leave running at full speed for 6 hours and it hardly got warm.
I'm going to fit to my own machine and do some real world testing cutting aluminium when I get chance but don't hold your breath waiting.
If you want to try it then I'm 99% confident you won't have any troubles for what your doing and it will be very neat and travel with the spindle.

i have never heard of a pc water pump so put it in good old ebay and got this,thinking about it once the water is moving gravity will help it keep flowing especially if its a closed loop of water or with a small reservoir

http://www.ebay.co.uk/itm/SC-300T-DC...item3f3c57e7e4

[Clive S]

i have never heard of a pc water pump so put it in good old ebay and got this,thinking about it once the water is moving gravity will help it keep flowing especially if its a closed loop of water or with a small reservoir

http://www.ebay.co.uk/itm/SC-300T-DC...item3f3c57e7e4

That's the sort of pump I used with less than a gallon tank with no problems but on your machine it might be better to have the pump etc on the z axis to get rid of the long hoses. You can buy a radiator for about £12 from China http://www.aliexpress.com/item/CPU-w...975245718.html Remember winter is coming so antifreeze is a must. ..Clive

[charlieuk]

Cheers thanks I will get one and see how it performs the silicone tube I have seams to get realy cool to the touch when it's full so try it and stick a thermometer in there. I will put a small amount of anti freeze in but it's in a well insulated room with that doesn't ever get down that low so no real worries of freezing many thanks