How Would You Upgrade An Old Ox CNC Build Into A Serious Machine?

[JAZZCNC]

I understand that... I was pointing out the comments Jazz made about the fact that he ran his spindle WITHOUT pumping water and said it was okay.

What I was pointing out was that if it was “okay” then you wouldn’t need a large tank of water. The fact that many CNC machines do indeed use large tanks of water to sink the thermal energy into point to the need for good cooling of the spindle to ensure longevity and reduce thermal damage to the permanent magnets.

You didn't read what I said about my machine carefully enough.! . . . .My PERSONAL machine doesn't even have a water pump it's feed straight from the tap and out into the drain. Wasteful YES but I don't cut long jobs on it often so rarely turn on the water. It runs fine for 30-40 mins without water.
It's been this way for over 2yrs and the spindle is over 6yrs old so it's not doing any significant harm to it. I've got woodworking machines out in the field that are 10yrs + old used 8-10hrs daily and still using the same spindle. They are robust spindles for woodworking.

My comments regards 20Ltr containers are for the machines I build. These need to be capable of long periods of use which are unknown to me so that's why I use 20ltrs of water. Also the containers are simple and easy to empty or find if need replacing.

However, if don't believe what I'm telling you then crack on and build an overly complex system so you can sleep easy.!! . . . . I don't give a Stuff.