Re: My Drill/Mill has arrived!!

Hi Jeff,

For all 3 linear axis, I used opposed tapered roller bearings with a
cinch nut and jam nut. For the Y, the bearings are close together on
the outboard end (where the current handwheel is). I completely
replaced all the stock bearing mounts with my own designs to adapt
the tapered bearings, and act as my motor mount and coupler shield.
Instead of ball screws, I used Kerk Motion Products 3/4" screws and
Zero Backlash nuts, though I now question this decision.
For design, I have all the work I did in 3D solids (Cadkey). If you
want a copy of the file, just tell me what format you can use
(.SAT, .X_T, .IGS, ?), and where to send it (around 1MB).

Allan

--- In CAD_CAM_EDM_DRO@y..., cadman@p... wrote:
> Alan,
>
> Can you be more specific about the ball screw conversion for the
> Y-axis? Did you let the far end hang without a bearing block like
it
> is when it arives? On the Z-axis mounting. You did not use the
> existing rack and pinion assembly? Do you have any sketches on
your
> ball screw conversion?
>
> CADMAN
>
>
> --- In CAD_CAM_EDM_DRO@y..., allan_r9@h... wrote:
> > Hi Jeff,
> >
> > Since I ordered my Mill/Drill without the stand from Enco, I
built
> my
> > own with structural tubing for legs and a 12GA top/drip tray. I
> just
> > cut out a rectangle under the machine base, staying inside the
mount
> > pattern. If I want to use flood coolant, I can just seal around
the
> > base to the tray. There is no way to install a nut mount for the
Y
> > axis without having access to the bottom of the base. I also
> > converted to CNC 3 axis, with the 4th on the way, and things are
> > running very well. By the way, for the Z axis, a NEMA34 frame
will
> > fit nicely up inside the casting behind the quill to power a
> > leadscrew connected to the quill collar.
> >
> > Enjoy,
> > Allan
> >
> ?
> > > >
> > > > Jeff aka CADMAN