coolant

[luke11cnc]

I'm getting braver and am thinking about cutting some brackets for limit switches next week but can I use 3 'n' 1 oil as a coolant or WD40 ??

James

[JAZZCNC]

3in 1 oil is too sticky WD40 works good on Ali. Any dewatering fluid will work good so buy the cheapist you can, WD40 is expensive.

[luke11cnc]

Thank you Jazz
James

[JAZZCNC]

If you plan on doing lots of Ali cutting drop me aline because I sell a WD40 equivelent that's less than half the price. Only thing is I only sell it by the case 12x500ml aerosols.

[Jonathan]

Can make cheap alternative to WD40 with paraffin and some other stuff, google it.
The 'proper' coolant you see on all the youtube videos is oil diluted about 50:1 with tap water. I've got loads of it if you want a pint

http://www.rocol.com/corp/index.php?...244&Itemid=266 (for example).