: I recently bought a mortising attachment and a drill press. The
: installation of the attachment is very straight-forward. Everything
: seems to fit well. The problem that I've encountered is that when I
: start it up and begin to "drill" my mortise, the spindle & chuck fall
I have had this problem.
I traced it to a misalignment in the setup that meant that there was a
sideways thrust on the chuck.
My drill, adequate for most purposes, is an imported Twaiwanese (I think)
where the machining is of indifferent quality. The quality of the fit
between the arbor and quill is less than it could be, so the chuck falls
Drilling machines are not designed to take any sideways thrusts, though on
the better machines people get away with using sanding bobbins and certain
Proper milling machines are fitted with a drawbar that screws into the end
of the arbor and passes through the length of the quill.
Jeff Gorman, West Yorkshire, UK
Email address is username@ISP
username is amgron
ISP is clara.co.uk