Re: gear head for 5ft axis

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

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "afogassa" <afogassa@y...>

wrote:

> >
> > Hi All,
> > I've being thinking to build a 5 axis gantry,'it would rotate a
> > headstock for A and B axis, where can I find zero backlash gear

heads

> > for the 4th and 5th axis? what kind should I go for it?
> > There is split worm gear box, harmonic type, etc...
> > money is short as always, so the cheaper the better.
> > Also there is someone on the list that has built one?
> >
> > Thank's
> > Fogassa
> >
>
> What is the work envelope ?
>
>
> Harror Fright sells 4" rotary tables for under $100 on sale.
>
> you could possibly mount an angle plate on a large table and then a
> small table on that plate.
>
> Dave
>

Thank's Dave,
I want to rotate the headstock, not the table.
The machine would have 1.5 m x 1m x 1m travel.
mostly used for prototype parts, renshape, mdf,.