I thought the problem I was having was that the hollow tube of acetal was flexing and this the chuck was letting go. But even a solid cylinder lets go now and ditto for small pieces of aluminum. Operations that used to be easy to do are no longer possible without the workpiece flying. The chucks are pretty dirty. Would taking the jaws out and doing a thorough cleaning help? Our am grasping at chips?
Yes they need to be cleaned. Pieces bind when they get dirty, and to get even grip requires all moving parts to move smoothly to get properly distributed force. Internal surfaces normally require proper lube after disassembly and cleaning, which varies depending on design.
ReplyDelete