Re: RF-31

Thanks Alan,

I had only a cursory look at the RF-31, and was hoping that there
will be some predrilled and tapped holes for me to attach the motor
mount or the plate (indirect drive), but it seem that I am out of
luck. Does this mean that I have to find ways to drill and tap on
site? This is not something I relish to do. How did they do the
retrofit with the RF45 I wonder.

Peter

--- In CAD_CAM_EDM_DRO@y..., Alan Marconett KM6VV <KM6VV@a...> wrote:
> Hi Peter,
>
> Here's the posting, under mill_drill files, mill stand, RF31MILL. I
> believe others on this list or that have made mounts for the RF-45
and
> RF-31 mills, I don't think it's too big a problem.
>
> http://groups.yahoo.com/group/mill_drill/files/Mill%
20Stand/RF31mill.jpg
>
> Sorry for the big file!
>
> Someone surly will be willing to make the mounts. But if you have a
> mill, it would be a reasonable project to make them! Of course, I
> haven't tried it yet for this size a mill! I invasion a rectangular
> plate of aluminum perhaps 0.5" thick, and wide enough for the #34
> mounts. I intend to use 3:1 pulleys, and hang the motor on the
other
> side of the plate to the pulleys. I haven't looked at it them, but
if
> one keeps the acme lead screw (for a while, anyway), then the same
> bearing setup would be done on the motor mounting plate. The
resulting
> .625" (?) shaft from the lead screw will protrude far enough for a
> pulley. The stock pulleys will have to be bored and reamed to fit
on
> the lead screw, an stepper motor shafts. Better to get ballscrews
right
> away, but as mentioned, I might try with the Acme lead screws
first. A
> new ball screw will also require a mounting for the ball screw nut.
>
> Perhaps someone has plans for these mounts already!
>
> Hope this answered some of your questions.
>
> Alan KM6VV
>
> Peter Chen wrote:
> >
> > From: Alan Marconett KM6VV <KM6VV@a...>:I plan to
> > try some old NEMA
> > #34 S/S 300 oz/in motors on my new RF-31 mill, with
> > 3:1 drives, even
> > though their not really big enough! I will put on
> > bigger steppers when
> > I can afford them! For now, I'll even leave the Acme
> > lead screws!"
> >
> > Hi Alan,
> >
> > Do you have any photo of your RF-31 posted anywhere on
> > the web?
> > Is there any possibility of making a motor mount for
> > the RF-31?
> > Perhaps some may want to make motor mounts for the
> > RF-31 for sale?
> > If one use indirect drive, how can one mount the motor
> > to the table/slide
> > and how would one take out the hand wheels to replace
> > with toothed wheels?
> >
> > Hope this is not asking too much.
> >
> > Peter