On Sat, May 10, 2008 at 7:53 AM, Dave Engvall <[EMAIL PROTECTED]> wrote:
> > The Mazak at Galesburg offsets (X and Y) to middle of table.
>
I thought limit switches needed to be at extents, because you can't run
right through them. How do they have it set up? It would work with an
optical trip - something I've kind of wanted to set up with something like
this:
http://www.robotobjects.com/scripts/prodView.asp?idproduct=407
I've seen used Boeing machines with a 1" aluminum plate drilled and
> tapped in a 2" or 50 mm grid.
> Lots of flexibility for mounting.
>
I recently made a tiny one of these for my mini mill, and confirm that
they're awesome:
http://www.flickr.com/photos/garyfixler/sets/72157604574121304/
They're pretty easy to code for with nested O-code while loops, and either a
drilling, or helical boring routine. I used the latter, with my own helical
sub, which I later learned is nearly identical to the one included in EMC's
examples files :)
For 90% of what I do I use UL of my vise as G59.3 and clamp fixtures
> in the vise. I simply draw my parts with a 0,0 UL corner.
>
I like this idea, especially as it's easy to square the mill back up with my
table. How do you account for the horizontal position in the vise? Do your
fixtures butt up against one side of it for repeatability across the jaws? I
think I'm going to steal this concept.
I keep thinking about making a tool length gage mounted on the table
> with a piston and a prox switch. It should be a very fast and
> accurate way of setting length. So far the round-to-it has eluded me.
>
I think this doesn't even have to be mounted. It could simply be a little
device you place on the table whenever needed, though it wouldn't be quite
as fast as a prox switch. I just found this while poking around the net:
http://www.industrialhobbies.com/howto/production_notes/height_gauge/height_gauge_pt1.htm
I'll just need a parallel block, a height gauge, a little block for the
gauge tip, and some epoxy.
-g
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