RE: [GrizHFMinimill] Re: Finding Center of Round Stock
- Hi Rick,
> I use a DRO so backlash is not an issue as far as locatingWhether backlash is an issue or not depends on how your DRO is
> centers or other points. It is an issue when milling, and
> I tend to account for it in positioning the table even for
> drilling, but this occurs after the "position" is located
> using the edge finder & DRO.
If the DRO is connected to the table, then you're measuring the position
of the table, and backlash isn't an issue.
If the DRO is connected to the leadscrew (via rotary encoder), then
you're measuring the position of the leadscrew, and backlash is an
Finding one edge and moving half the diameter makes perfect sense, and
is probably easier/faster then finding both edges, provided you know (or
have measured) the diameter.
Vancouver, BC, Canada
- Hi guys:
I would recommend that you pick up an edge with an
edge finder, move in .500 and drill a hole. Then
measure the distance from the edge of the part to the
center of the hole. This is how you find as I have
done, exactly how far you are from the edge you are
when you use an edge finder. I am .0001 from the edge
with my edge finder and with the techniques I use. So
do the experiment and test your own techniques. Every
tool and every machinist will get different results.
The only way to be sure is to try it.
--- h12721 <73772.2557@...> wrote:
> --- In GrizHFMinimill@yahoogroups.com,__________________________________
> ljack70117@a... wrote:
> > When the edge finder jumps off as you said, it is
> .0005" past the
> > Thank you
> > Larry Jackman
> Hi Larry, where does the 0.0005 come from? Could
> it be 0.0004 or
> 0.0006 or 0.0001 or what ever? At what speed?
> Regards Hilmar
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