On Mon, 8 Feb 2021 at 09:09, Gene Heskett <ghesk...@shentel.net> wrote:
> > I doubt it. In fact the whole mill might be surprisingly tiny. A bit more research indicates that the "VH-2" in the auction description is actually the designation of the vertical head (Vertical Head 2?) The mill itself is probably a Hardinge UM. This also suggests that the machine is somewhat overpriced, as a bare UM generally goes for around half the asking price. (That said, there is VH-2 vertical head on eBay right now for $1650) Looking at specs for the Hardinge horizontal millers I think that you will find it to be a bit smaller in all dimensions than a G0704. (Especially in table travel, which I think is unreasonably large on the G0704 for the thickness of the table) From a forum post: "The TM and UM are the same machine except that the UM has a table that swivals a few degrees. Total weight is 870 lbs. Table has 3 slots and is 25" lg and 6 1/6" wide. There are 32 speed selections from 110 to 1850 rpm in clockwise & counterclockwise rotation. The table feeds in both directions from 1/8" to 13" per min. Longitudnal feed is 14", transverse is 5 1/2" and vertical is 13 1/4". Maximum distance from the table to the center of the spindle is 12"" On the plus side, it is a horizontal miller with a swivel table. Those make great gear hobbers. > Did Hardinge ever make extension spacers to > get a few more inches of working room under the spindle? I think that the knee would drop off the dovetail if you did. Note that the machine has no quill. Though that hasn't really bothered me on my Harrison conversion. Whether the Hardinge is better than the G0704 for you rather depends on what it is about the GO704 that you don't like. If it is lack of rigidity and geometrical truth then the Hardinge will be better. If it is work envelope, table travel and spindle speeds then the Hardinge will be worse. And there is the point that the GO704 is currently a working CNC mill, whereas the Hardinge is a (probably) working manual mill. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
