Quick survey for those of you who own a water-cooled spindle, do you have some kind of coolant flow indicator installed ? After I installed everything it hit me: the coolant pump that came with my spindle probably costs 20$, and its failure can probably kill my 200$+ spindle in a few minutes.
I see some of you use a visual indicator in the coolant line, I’ll go for that as a minimum:
but I have a dream about some kind of inline flow indicator that would embed a bit of self-powered electronics to either produce a beeping alarm when the flow stops, or better yet trigger a signal that I could then wire back into the VFD controls to do an automatic emergency stop.
Bonus points for Amazon links!