Re: Home page pic

Yes, they are very cute looking, I think that is half the reason I
couldnt resist using them. I did fry one (Y axis) by accident last
weekend - I do have a spare though.

For some reason the machine fools a lot of folks into thinking it is
MUCH bigger than it actually is. If you lay a sheet of 8 1.2" x 11"
paper on the table, you would have a 1/2" boarder of table showing
around it. As I mentioned, the original design purpose was for a
plotter, thus a single sheet of paper ;-)

The pitch is .05" on the screws, very simple, very effective for
what it is designed to do (and for what it wasn't designed to do).



--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Alan Marconett" <KM6VV@...>
wrote:

>
> Hi Chris,
>
> They are really cute. Simple to drive also. I think a single IC

will drive

> them. I've seen that done on older disk drives.
>
> Fine pitch leadscrews? That may be enough. What pitch are they?
>
> Maybe I've got the whole "scale" of the machine wrong?
>
> Alan KM6VV
>
>
> > [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of

lcdpublishing

> >
> > When I get the tool changer working and such, I will provide

photos

> > and a description - heck that's half the fun of this stuff.
> >
> > Yes, they are tiny little Nema 17 motors, picked them up on Ebay

for

> > a good price, and, for the original design, they are perfect for

a

> > plotter. However, seeing as I changed my mind and decided to

make a

> > PCB machining center out of this thing, I am not 100% sure they

will

> > work. When I was writing and testing the motion control

software,

> > they sure seemed to have a heck of a lot of force through those

fine

> > pitched screws so I am 98.87623% sure they will work just fine.
>