Re: [CAD_CAM_EDM_DRO] Re: Re: Re: Grizzly mini mills

Thanks Ray!

I'm the type who knows there will always be problems to any solution, so I'm
just trying to make the best of it on a very limited budget.

Scott

----- Original Message -----
From: "rehenry" <rehenry@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, November 03, 2001 7:51 AM
Subject: [CAD_CAM_EDM_DRO] Re: Re: Re: Grizzly mini mills


>
> From: "S.L.Ramsay" <slramsay@...>
>
> >Regarding the Grizzly mini-mill G8689 and a CNC convertion. If the
> >Grizzly line is too flimsy, and the Sherline mills are too small, what is
> >a good solid benchtop size mill? What brand and model do you recommend
> >for a mini-mill cnc system? Has anyone come up with a viable alternative
> >to the Grizzly?
>
> Scott
>
> Flimsy is a relative term. You get a whole range of flimsy in machines --
> from Clisbys and Sherlines all the way to 30 ton Mehanite monstors. We'd
> do well to ask one's definition with a word like that as it almost sounds
> like something a salesman might use to denegrate the competition.
>
> I use two Grizzly 8689s here and for light cuts in aluminum, brass, or
> steel they work well. I have modified the base of the dovetail column so
> that I can tram them in and expect them to stay put. My CNC'd one uses a
> Thompson 5/8's ball screw in place of the rack. It did take some milling
> on the z saddle to fit it in there. This mod could be done with a
> hacksaw, hammer, and a lot of filing if you had to. (Paul has a garage
> full of tools to do it right.) I also honed all of the dovetails so that
> I can get reasonably smooth motion and tight fit on each axis. The 8689
> gibs are not very well done and require a lot of fiddling to adjust up.
>
> Hey for $500 you're looking a $3/lb -- some folk spend more than that for
> breakfast cereal, and speaking of flimsy, how long does that last! :-)
>
> Ray
>
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