Re: Rod Sizes

There are 3 that have the carriages, 2 are the same size, the 3rd
has a larger rod, and a large carriage. Not 100% sure what is going
where yet, still in early design phase.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
<dave_mucha@...> wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "krashking405"
> <krashking405@> wrote:
> >
> > Was thinking about using the 2 smaller rods that have their
> > carriages with the base.
>
> I thought the large ones had the carriages. I would use those with
> the carrage on the base.
>
> Dave
>
>
> 1 on each end with lead screw in the
> > middle. Then the Y-axis could use the largest, and the Z could

use

> > one or 2 of the smaller rods.
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
> > <dave_mucha@> wrote:
> > >
> > > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "krashking405"
> > > <krashking405@> wrote:
> > > >
> > > > OK, I have measured the rods I have. Three of them have the
> > carriages
> > > > that came out of the donor machines, two of these have a rod
> > diameter
> > > > of 0.35 inches [8.89mm] with a length of 15.28125 inches
> > [388.14375
> > > > mm], the other is .392 inches [9.9568mm] in diameter, and a
> > length of
> > > > 17 inches [431.8mm]. The rest have no carriages, I have two
> > at .235
> > > > inches [5.969mm] in diameter with a length of 10.5 inches

[266.7

> > mm],
> > > > two at .275 inches [6.985mm], one has a length of 16.5

inches

> > [419.1
> > > > mm] the other is 9.71875 inches [246.85625mm], and one

at .305

> > inches
> > > > [7.747 mm] in diameter with a length of 10.125 inches
> > [257.175mm].
> > > > What would my approximate work area be? I plan on using the

rods

> > with
> > > > the carriages on the X, Y, and Z-axis. Can I get away with

just

> > a rod
> > > > and lead screw per axis?
> > > >
> > >
> > > Put the heavest rods on the base. If you still have the

slides,

> > then
> > > all you need to do is to adapt the slide to a platform maybe
> > epoxy or
> > > some such. maybe screws if you have them.
> > >
> > > if you figure securing each end by 1/2" and a 2 inch long

bearing,

> > > then you have about 3 inches taken up.
> > >
> > > figure the dremel will drill down the center of the gantry and

you

> > > lose an inch on each side from the slides. if it overhangs on

one

> > > end, you lose the 2 inch on the slides, plus the overhang.
> > >
> > > If you get a length of 1/2" threaded rod, you could use that

as one

> > > rail. but, the diameter of the parts is small an you might

want a

> > 3rd
> > > rail.
> > >
> > >
> > > As for end supports, you can use a 1x1 wood end rail and

another on

> > > top of it. then just bolt them together and sandwich your

rails in

> > > place. That allows a simple method of getting the ends

mounted

> > > without high tech stuff.
> > >
> > > Although your rails are really light, you will be able to have

the

> > > drill move accuratly to a location. that will allow you to
> > manually
> > > push the dremel into tougher materials for drilling. This is

what

> > I
> > > do to spot drill holes in aluminum. I use a 1/8" dia center

drill

> > and
> > > just finger press the unit into the aluminum, then take it to

the

> > > drill press and put in the larger holes.
> > >
> > > The reason I mention this is because once you get the X and Y
> > > movement, you can use postioning to locate holes super

accurate to

> > > make plates and supports to have the machine help you make

parts

> > for
> > > the rest of the machine.
> > >
> > > Dave
> > >
> >
>