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View Full Version : I needed A tailstock for the rotab on my mill table



dockrat
06-27-2008, 11:27 PM
I needed A tailstock for the 10” rotab on my mill table to do some work with the table in the vertical position. I figured I could use the one off my lathe but it was 1 ” too low so I had to make an adapter for it to sit on. First I took 2 lengths of 1”x1”x 4 ” key stock and milled two notches on one side of each so they would fit tightly into the slots of the table. With the two lengths of key stock squared up in the slots I laid a piece of 1”x4”x7” plate on top of them and squared it up then tacked it to the ends of the key stock with some damp rags covering the table so as to not get any splatter on it. I then took it off the table and ran a bead down each side of the key stock on the underside. Back it went on the table and was clamped down on the outside edges and the center section milled out to considerably lower than the height needed for the base of the tailstock and then slotted for a bolt. The clamps were removed and the unit was bolted down in the slot in the middle and then the actual bed for the tailstock was milled out. To get the right depth of cut I measured the difference like this…..

http://i253.photobucket.com/albums/hh67/Dockrat1/IMGP1080Medium.jpg

Finished mount:
http://i253.photobucket.com/albums/hh67/Dockrat1/IMGP1073Medium.jpg

Tailstock mounted
http://i253.photobucket.com/albums/hh67/Dockrat1/IMGP1078Medium.jpg

To square the rotab to the tailstock I move the tailstock up to a center in the rotab and lock it down. I can then tap the rotab around to get it square. Like this…

http://i253.photobucket.com/albums/hh67/Dockrat1/IMGP1077.jpg

dockrat
06-27-2008, 11:29 PM
the finished product in use with a small bullnose live center

http://i253.photobucket.com/albums/hh67/Dockrat1/IMGP1079.jpg

RetiredFAE
06-28-2008, 12:00 AM
Great idea and very nice work Ernie! Wish I'da thunk of it.

GKman
06-28-2008, 09:31 AM
Good thinking, nice execution.

hardtail
06-28-2008, 11:40 AM
Great ingenuity, how do you find the 10 rotary? I've been looking for one for awhile and I'm thinking 8" is too small but 12" is starting to get $$$ and a big piece to move around, my table is 9x49 and 10" seems right.........my wife would probably say you wish you had 10"..........LOL

Not sure as I could double up using my lathe tailstock on a 10" but you bring some good ideas on maybe looking for a 12" or bigger..........hmmmmmmm For as many times as I would use it I could hoist from above which I've been meaning to install a track and traveller from the lathe chuck to over the mill table anyway.

dockrat
06-28-2008, 12:22 PM
Great ingenuity, how do you find the 10 rotary?

I'm really happy with the 10" Anything smaller would make fixturing and clamping anything of size difficult. It also gave me enough room to make an easy mounting plate so I could use the chucks off my lathe also. I'm way too cheap to buy a dedicated tool when I can double-duty something. :D On my mill, a 9.5x 32, I think a 12' would be a little overkill. On yours..maybe not.

Paul Gauthier
06-28-2008, 03:40 PM
Very clever indeed. Well done.