mounting 3 jaw chuck rotary table made in china

You are right about getting the morse taper correct! that has been in my thoughts about this set up! I have thought about it for a while and I think would want to make this as short as I could, also I am not real concerned about getting the morse taper fit really tight just a good snug fit, and have a flange like you do and just drill about 3 holes in that flange for some allen flat heads and drill and tap the rotary table so it can be bolted down and no chance of moving! so basically the tapered hole in the rotary table would be to line up the adapter not really do any holding the flange and the flat head allens would be bolted down to the table! best set up would be just so the tapered shaft morse #2 would fit so the flange could pull it into the taper flush with the rotary table top! would take a bit of fitting to get it just right but can be done! to me that would be the ideal way to get it made, if the morse taper was not so hard to turn you could machine it until it fit just right but it would have to be indiacted in to run true and they are a pain in the @#%[email protected]#% to make with the right angle on the compound! for this set up it would be better if the hole in the rorary table was not tapered it would make the whole job an easy one! but if the table is needed for vertical work the tapered hole is handy!

You can get an "A" mount chuck and just bolt it on, as long as the slots agree with the bolt placement. This is about perfect for min-height (and resulting max rigidity). You can even use the lathe to make a short taper adapter that locates on the table bore (if concentric, check with DTI first) for easy mount and alignment.

Me, I prefer to just use a plain back 4 jaw. Lets me mount just about anything of any shape with any feature accurate to the degree which I care to achieve (within reason). I have 4 rotabs and indexers combined, and none have ever had a 3 jaw mounted. I"ve got 4 jaw chucks ranging from a PB 6" mostly used on my Hartford indexer, an 8" HD Cushman (sometimes just mounted to the mill table t-slots to act as a 4 jaw vise), and a 10" Buck plain back that are all ready and intended for that purpose. I also have a 12" Buck and a 15" Rohm that could be pressed into use if needed. And the best thing is (well, next to ease of mount and capability) is that 4 jaw independent plaint back chucks are readily available in near new condition at really good prices! Hey, you know how cheap I am, why do you think I have so many top name 4 jaws just lying around? The only place I think a 3 jaw would be nice is on higher count production like runs where the part is nicely machined round with a reasonable tolerance. I recently picked up a nice Ellis indexing head with 5" Buck 3 jaw (1 piece, and only one set of jaws, sigh...) that will probably stay for now. But I"ll likely rig an adapter for the 6" Pratt Burnerd 4 jaw (some day).

6" PRECISION 3 slot ROTARY TABLE /HORIZONTAL&VERTICALwith 6" 3-jaw self-centering chuck top&bottom reversible jaws, front mounting. All bolts and T-nuts to  mount the chuck  included.

I"ve had a few requests for muzzle brakes and flash hiders. I had this little tilting 4" table with a 3" chuck. It did work, but I had to take things so slow to avoid chatter or completely knocking the work loose. Stronger, bigger, heavier iron was the answer. Turning the key is a little stiff, but I haven"t cleaned or lubed it yet. I don"t see why this won"t serve the purpose just fine. Will I be building Pratt & Witney rocket engine parts with it ? No. Will it get me within a couple of thou if I take my time setting everything up just right, and keep it there while I do my cuts ? No doubt. The chuck and adapter plate are $240 USD shipped within the US. All said and done, including import fees, a little more shipping (I suspect), currency exchange...the usual stuff they saddle us poor Canadian guys with....LOL.... all said and done, it was $341.07 Canadian pesos, delivered to my door step. Still cheaper than any 8" chuck that I can buy here by half.

The Vertex is different from the others ... you have to buy a separate lathe-style chuck with an MT2 or MT3 arbor sticking out the back of the chuck. The main part has a MT2 or MT3 hole, and the body rotates on a horizontal axis to tilt. You don"t have to use the usual lathe-type chuck on it. For small work you can use a Jacobs chuck with arbor. I don"t think you can do rotation about 2 axes, just one; but I could be wrong. I have seen one at the tool store I go to and they have still not sold it after a couple of years so perhaps it is not as useful as I think but it sure does look nice.

As for the term "hinge", I made that up. The one I am thinking of is still called a rotary table; there are two parts ... the rotary table, and then the base. The two are connected on one side by the hinges (just two tabs with holes, a rod, and the horizontal hole in the base that the rod goes through). The tab parts fit over the edges of the base and the rod slides through the tab holes and the horizontal hole in the base.

Even with a rotary table that is not hinged, you can mount it vertically and in that position you might call it a dividing head because you can usually buy a tailstock for it, and, for certain ones the dividing plates.

注)1. ① SC･JN models include each one set of integrated internal hard jaws and integrated external hard jaws as standard. JN models cannot use soft jaws.