Hi
Have a question, was machining some PVC, long program and shut down for the night to start up in morning, left computer on so I could continue in morning as I was restarting program it closed for some reason. Anyway I worked on a run from here and ran into a problem and my bit and spindle plunged into the material took a few seconds to stop the program. Here is my question, my collet must have gotten hot plunging into the pvc and the result the collet developed a rust coating lost that shiny bright finish almost immediately as did the collet nut, also hard to loosen with my wrench. Cleaned everything up. The next day did a cut with a different collet and bit the cut was fine but a few days later went to remove the bit and the rust loss of shiny surface was evident, also on this collet and had to use penetrating oil and tap the collet nut to remove. No moisture in my shop checked the spindle for heat or damage and seems fine.
Any ideas
Thanks Bill