so, I had to take a look. pretty simple set up. the long aluminum bar is the ejector. it has a smaller tapered aluminum pin in the end that contacts the tools needing to be ejected. that pin is somewhat mushroomed from 58 years of use at the University. I was going to make a new, slightly longer tapered pin but it didn't want to come out, so I went to the other end of the tailstock. at the very back is an aluminum disc that pushes the ejector forward until it makes contact with the tool. it had what I assume was a vent hole in the center of it. I drilled it larger, tapped the hole and ran in a bolt.
adjusted the bolt in until all the tools I currently have eject fine except one of the 2 live centers. it only took an additional 4mm to get there. in total I lost the thickness of the aluminum clamp that the DRO is screwed to plus the 4mm of running in the bolt. if I had wanted to get the 2nd live taper to eject, it would have taken an additional 15mm. if I decide to use that live taper, I'll just drill the end of it and add a bolt or something to extend it. assuming I can figure out how to hold a taper for drilling.
the neat thing I realized from opening this up is, if I ever get anything that won't eject, all I have to do is remove 4 screws, pull off the rear cap and tap on that long aluminum bar and it will come loose.
I also realized that I need to replace the felt ring at the front end of the barrel, spindle, whatever it's called. can't be a spindle if it doesn't spin. hey, I guess it's a quill.
adjusted the bolt in until all the tools I currently have eject fine except one of the 2 live centers. it only took an additional 4mm to get there. in total I lost the thickness of the aluminum clamp that the DRO is screwed to plus the 4mm of running in the bolt. if I had wanted to get the 2nd live taper to eject, it would have taken an additional 15mm. if I decide to use that live taper, I'll just drill the end of it and add a bolt or something to extend it. assuming I can figure out how to hold a taper for drilling.
the neat thing I realized from opening this up is, if I ever get anything that won't eject, all I have to do is remove 4 screws, pull off the rear cap and tap on that long aluminum bar and it will come loose.
I also realized that I need to replace the felt ring at the front end of the barrel, spindle, whatever it's called. can't be a spindle if it doesn't spin. hey, I guess it's a quill.