Re: Advice on small mill table conversion

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "jrnbrg" <vandenberg1@...> wrote:

>
> I've converted a KT-150 table using the original nuts.
> Just like you described, I made a fine cut and used 2 M3 bolts to
> adjust the backlash.
>
> You also might want to reinforce the casting of y-axis (the upper
> axis). Since it's fixed with two M5 bolts above center of the
> spindle, the power of the motor will move it up and down.
> There is room for two brackets wich connect to the casting and the
> top of the table.
> The x-axis doesn't have this problem.
>
> I used 2 axial and 2 radial bearings per ax, all mounted on the motor
> side.
> Futher I used timing belt and pulleys for the connection between the
> steppers and the spindles.
>
> I lost about a inch of travel by doing so but it was already limited
> by using the proxxon stand.
>
> There are some pictures in my gallery at cnczone (username jerber).
>
> Jeroen
>

Thanks Jeroen, neat machine. I think I had seen it before but could
not remember when.

Perhaps I should look again at the adjustable nut idea but I'll try
the Delrin first. I hadn't thought about the casting flexing at that
point but it makes sense now I think about it.

I think I am going to stick with direct drive if I can do it in a
compact way.

Graham