-2

Just visited a shop that runs their Haas machines 24/7 with no cool down breaks

I stopped into a small job shop in Toledo last week and the owner actually argued that stopping to let the spindle rest causes more wear than running it hot constantly, but my own 15 years of running CNCs tells me that thermal expansion is exactly why you should let the machine settle between heavy cuts, so who else has seen this kind of thinking in real shops?

2 comments

2 Comments

park.tara11d ago

Whoa, hold up. I actually side with that shop owner. Running hot keeps everything at a steady temp. Thermal shock from cooling down and heating up is what cracks spindles and throws off tolerances. I've seen machines that never shut down hold tenths for years.

ben82710d ago

My last machine was so temperamental I had to leave it running overnight just to keep it from throwing a fit the next morning. I think I spent more on power bills than I did on tooling that year.