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Homemade line boring machine. By naz naz. 1:32 video:
https://www.youtube.com/watch?v=qQ5aUhvahm0
Previously:
https://www.homemadetools.net/forum/...459#post139099
https://www.homemadetools.net/forum/...841#post100173
https://www.homemadetools.net/forum/...986#post129701
As many know this is all too familiar to me
I like having my bearings mounted a couple inches away form the end of the bore to allow for better viewing and bit run off
I've line bored a lot of punch presses, but never had to hand feed. We always had our carrier bearings set back a ways too. Problems I had, were related to the temperature of the hydraulic oil in our system. Anytime the temp of the oil changed, we had a slight change in feedrate or RPM. I have once line bored a 1300 ton forge press in freezing temperatures.
This guy wouldn't have to worry about that ;)