try some lipstick on the taper and shank of the collet
The collet won't release. Worked fine for years. Now when collet opens it won't release material. The spring feels like it has plenty of tension. Not sure why it won't release.
It is Star VNC 32
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try some lipstick on the taper and shank of the collet
If the collet is sticking, sand both the collet and collet sleeve to remove the shiny spots
And afterwards rinse in varsal and oil them and put them back into the machine