I'm familiar with pump drills, but never seen one as a drill press. Anyone know anything about these?
https://www.youtube.com/watch?v=9D__A2gK2_o
I can't tell from this video how he got it to press/up/down.
Have you got one?
Ever seen one? Video/article?
Care to speculate if you haven't?
I have got to have one.
Rotational inertia causing angular acceleration.