Re: [CAD_CAM_EDM_DRO] Creating long straight edges (and big squares)

Hi Jon:
You have my undying admiration for your willingness to dive into such a
BIG job.
I was thinking of trying to stone my machine as well (my ways are worn
0.0025").
I gave it a 15 minute workout and couldn't measure the difference.
That's when I got on the net and found a way grinder in Ontario who has
EXCELLENT references, and wants only $850.00 CDN for the job.
He's an older German gentleman who claims not to really NEED to do much in
the way of work anymore, so he just does the jobs he likes.
He has 2 big Churchill way grinders, and his customers tell me he gets them
dead nuts...within tenths over 10 feet!!!
I'm sending my Monarch 10EE over in a couple of weeks or so.
I'll let everyone know how it works out.
Cheers

Marcus

----- Original Message -----
From: "Jon Elson" <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, July 06, 2002 8:33 AM
Subject: Re: [CAD_CAM_EDM_DRO] Creating long straight edges (and big
squares)


> Les Watts wrote:
>
> > Well thanks Marcus.
> >
> > A machine builder friend showed me how to "scrape" flame hardened v ways
> > using
> > mounted stones in a high speed pencil air grinder. I did it on one
machine
> > with great results
> > but it is slow. About the only way I can justify it is by waiting till
after
> > hours or the weekend
> > and saying "ok-I'm not working now, i'm just playing".
>
> > ----- Original Message -----
> > From: "Marcus & Eva" <implmex@...>
> > Sent: Friday, July 05, 2002 10:14 PM
> >
> > > Too bad I can't think of a good way to use it on the vee ways of my
> > lathe!!
> > > Looks like I'll have to send the machine off to the way grinders after
> > all.
>
> Yes, it is slow. I first used a toolpost grinder mounted to the base of
the
> tailstock and slid it down the ways. This, of course, duplicated the
flaws
> in the tailstock ways, which were in a LOT better shape than the main
> ways. I then tried all sorts of things with a die grinder, mostly Cratex
> points, and then larger Cratex wheels. These didn't work very well, but
> I may do some finish work with these later. But, for final adjustment
> in the .001" range, I'm using bench stones! You oil the stone very
> thoroughly and just rub the stone back and forth on the ways. I take
> about 100 back and forth movements of 6 - 10" over all the high spots,
> then clean it and check it with a straightedge. Every hour or so I
> make a pass with a Vee master block that I made and a master precision
> level. I also use the Vee block with a dial indicator on a magnetic base
> to read against the reference surface.
>
> I'm getting there, and it is going to be a very straight bed when I'm
done.
> But, it IS slow. This is a big lathe, a 15" Sheldon. See
> http://pico-systems.com/sheldon.html for a progress report with
pictures.
>
> Jon
>
>
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