Aluminium Grades

[michael]

T6 is about the easiest to obtain that cuts nice, it's the architectural sheeting that cuts like wet butter.

Best coolant for aluminium is WD40, in fact that's all its good for :heehee:

Because it's expensive make your own 75% paraffin [ the UK stuff ] and 25% any hydraulic oil, or ATF, that red automatic transmission fluid.
You don't need much, those kitchen type spray bottles work well but you have to be there.

I had often thought, but never done anything about it, of using one of those Peristaltic pumps

http://en.wikipedia.org/wiki/Peristaltic_pump

Positive displacement, no waiting 10 minutes then the alloy builds up on the cutter and just as you go to stop the machine a great big snot of muddy water hits you bang on.

With a spray head you get get a fine mist which is all you need except decent ventilation

..

Cheers John, I did wonder about raiding a bottle and washer pump of an old car from Albert Looms! Then modding it to include a return to recirculate coolant with some filtering of course, even thought of using a cheap car oil filter for this?

for misting does it require an air feed? Or does the nozzle it self create the mist?

Michael.

[John S]

Cheers John, I did wonder about raiding a bottle and washer pump of an old car from Albert Looms! Then modding it to include a return to recirculate coolant with some filtering of course, even thought of using a cheap car oil filter for this?

for misting does it require an air feed? Or does the nozzle it self create the mist?

Michael.

Can't honestly answer the misting question as I have never done it, if the pump has enough pressure then it should mist given the right nozzle, think hosepipe but if it's low pressure then it may need a bit of a hand.
Then again a simple air spray system will mist, like a cheap spray gun.

Not sure about a car oil filter as a return system because on a car it's pumped. Someone would need to work out how long it takes to flow thru by gravity and is it backs up too much.

Sorry not been more helpful but as I say no experience.

[edit]
The professional misting systems work total loss but use very little liquid.