Cooling fluids

Questions/answers/discussion about initial setup of your CNC Shark

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Cooling fluids

Postby rbuckner » Mon Aug 20, 2018 8:35 am

I am about to pull the trigger on an HD4 with the liquid cooled spindle. My question is can a fluid such as RV anti freeze be used Vs water? My workshop isnt heated 24/7 and only when i am in there working. I dont think Mama would allow me to bring this into the house ( not saying the thought didnt cross my mind)
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Re: Cooling fluids

Postby SteveM » Mon Aug 20, 2018 5:52 pm

That is probably what everyone that has a spindle uses. RV antifreeze
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Re: Cooling fluids

Postby blackhills » Mon Sep 17, 2018 5:38 pm

This thread is a bit old but i wanted to point this out for future viewers. I use RV antifreeze for my spindle. If you live in a cold climate keep in mind this type of antifreeze will turn into a slush. It will not expand like water when this happens but it would definitely affect the flow through the pump and spindle.
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Re: Cooling fluids

Postby SteveM » Mon Sep 17, 2018 6:09 pm

During the winter in Wisconsin, I keep the garage at 48 degrees, so I don't have to worry about freezing. While I am working, I crank up the heat to 65 which only takes about 20 min because the garage is insulated including the door. I also have rubber tile on the floor, so no cold concrete to stand on or transfer cold to the room.
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