Re: $250 machine pics

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "kz1927" <kz1927@y...> wrote:
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, John Dammeyer <johnd@a...>
> wrote:
> > >
> > > Hi John,
> > >
> > > Thanks. One of the problems I ran into was coupling the leadscrew
> > to the
> > > motor. Since my system was purely for positioning and not milling I
> > made a
> > > coupler that was threaded on one end to the same pitch as the screw.
> > The
> > > other side presses onto the motor shaft and is held in place with a
> > > setscrew. A locknut prevents the leadscrew from unwinding. The
> Stepper
> > > bearings are used to hold things in place. (not the best I agree).
> > >
> > > I've posted a photo at

> > >
> > > I've never really been able to get a decent connection with this
> coupler
> > > method. How did you connect your screw to the motor?
> > >
> > > John Dammeyer
> > >
> > >
> > > Wireless CAN with the CANRF module now available.
> > > http://www.autoartisans.com/products
> > > Automation Artisans Inc.
> > > Ph. 1 250 544 4950
> > >
> > > >
> > > > Pictures at Flickr
> > > > I think this is right
> > > > http://www.flickr.com/photos/26361144@N00/
> > > >
> > > > these are prototype and apartial assembly.
> > > >
> > > > Thank -John
> > >
> >
> >
> > I'm glad you mentioned that.
> >
> > The motors have a washer in them that when direction changes
> > will spring the shaft in or out just slightly.
> >
> > the leadscrew needs to be put between the support columns in such

> > that it can't move from side to side at all. Not directly attached
> > to the motor shaft. I used skate bearings to "lock" the screw between
> > the columns...then carefully connect motor directly to the end of the
> > leadscrew with a straight coupler.
> >
> > My circles were coming out not round and I watched what was happening
> > for hours before I saw that.
> >
> > That's why my prototype machine in my pictures are "rigged up"
> >
> > If you need more info let me know and I'll get you some pictures.
> >
> > _John
> >
>
>
>
> I'm making you a diagram, bear with me.
>
> -John
>