Re: [CAD_CAM_EDM_DRO] X Y table (was Re: how the heck to peck)

Dan,

Do you have any pictures of your conversions? I haven't decided
what I'm going to do about the Z axis or spindle yet and wouldn't
mind seeing a few ideas. I didn't manage to get all of Bob's
articles but I seem to recall him mentioning something about using
one of the axis of another XY table as the Z.

Thanks,
Drew

Dan Mauch wrote:

>
> Yes indeed, Bob Nansel, who is currently writing the series of robotics
> articles for Nuts and Volts Magazine, did contact me as are both members
> of Seattle Robotic Society and he was familiar with my CNC work when he
> lived here in Seattle. I gave him many options/suggestions to consider
> for his articles. Some of which he choose to use and went off in another
> direction in others. But like I told him there are no wrong answers if
> the results works. He did like the Enco 6X18 table that I have used for
> several applications. The tables do need to be reworked to give them
> good accuracy. I have retrofitted some with ballscrews and others with
> better quality PIC acme leadscrews with new drive nuts and a
> re-machining of the existing thrust block for new needle thrust
> bearings. If you consider that it would cost more for the metal castings
> than what you pay for the Enco 18X6 table, and that the basic casting
> are good enough with some rework then they are a really good deal and
> worthy of retrofitting. I would say if the accuracy needed was +/- .002"
> then a successful retrofit would be possible. When I was modifying mine,
> I placed the XY base on my mill and set up a dial indicator to see how
> square it was. The runout over the full X travel of 11" was within .001
> and the Y axis was also within .001.
> I did some research and the Pallgrem table is the (appears to be the
> same) Chinese made table just with their name but the specs are the
> same.
> Dan
>

--
Drew Rogge
drew@...