I’m running hardened steel about 50 Rc in my little modified CNC and the standard water soluble coolant just wasn’t cutting it. So I devised this plan to run treated WD-40 in my Kool mister instead! Treated I mean adding about 5% tapping fluid mixed into the WD-40 just to enhance the lubrication properties thus gaining some tool life. Low and behold it worked and it worked quite well!! Then after about 40 minutes of cycling she stopped drawing anything out of the tank at all. Instead my Kool Mister just started blowing bubbles out of the pick-up hose down in the tank. Crap, what did I do wrong…. So I tear the unit apart swapped out the O-rings made sure everything was tight and still nothing. My question: has anybody ever tried this concept before? And my bigger question is was it working for you.
Thanks in advance.