Re: [CAD_CAM_EDM_DRO] re: Re: Re: Steel plate for hexapod bed

In a message dated 12/5/2004 10:43:03 A.M. Mountain Standard Time,
elliot@... writes:

Threaded inserts can be bought, or make your own. I drilled some holes,
measured the hole size, turned some steel to that diameter minus a couple of
thou and threaded it. Make sure to thread all the way through, otherwise
when you put the insert in the hole, the epoxy will seal the air under it
and it will pop the insert up while the epoxy is hardening. Oops! Then you
have to go back and kiss off the tops of the inserts.





I have done that to two Sherline Mills, and it really makes for a stable
surface, and unit. I would add to the above, do drag a file across the top of
the surface plate after gluing the inserts down, and be sure they are not
proud of the surface at all. Also, on the Sherline mills, I draw filled the
bottoms of the holes to be sure they were absolutely flush with the base of the
mill. They had been mounted on plywood, and the areas around the holes had
been pulled down some, once they were draw filed, the mills set absolutely
square on the surface plates, with no rocking or slivers of light under the base.
All in all a very good mount.
bill


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