Re: [CAD_CAM_EDM_DRO] loose quil

In a message dated 1/19/2003 6:19:23 PM Central Standard Time,
david_mucha@... writes:

> I thouhgt about chrome/nickle plating or some sort of
> electroplating. I am also considdering just using some shim stock.
>
> The frame is cast iron and the quill is steel.
>
> any ideas ?

Dave: I had a nearly-similar quandary on a Chineesan drill, and I dismantled
the head to get the casting in my hands, and then sawed a "slit" up the nose
partway, through to the hole the quill resides in, and then I drilled/tapped
for some CR bars I screwed to the front of the nose so I could "clamp" the
quill fast up or down (this little DP had no "little handle" to clamp the
quill in Z-movement). This only squeezed the cast-iron "nose" a few thou.,
but enough to clamp the quill. Thus, surely if a screw or two were installed
horizontally through those two bars screwed to the nose, either side of that
slit, you could "make up" the gap to a tenth, as you tested for
free-movement, as you tightened. You might even use longer screws, putting
lock-nuts on the excess, to tighten against the left bar, etc.

Of course, you could also bore-out the cast-iron and install a brass sleeve,
and...

Lotsa luck! Jan Rowland


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