Enco 4 way tool post


















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Any international shipping and import charges are paid in part to Pitney Bowes Inc. The inexpensive 4 way tool posts just have 4 slots cut into the bottom of them with the indexing pin coming up out of the top of the compound.

They work, but not as well as the 12 position ones. There is a 4 way tool post that has only 4 positions that was used on turret lathes. There are others designs, but I feel these are the most common in the shops I have worked in. Richard W. Re: 4-way tool post Post by SteveM » Mon Nov 09, pm I have an Atlas 4-way toolpost that just indexes in 4 positions, but I also have older Enco mad in USA toolpost that has a ball-bearing detent system for 30 degree indexing.

Note that some 4-way toolposts have rockers in them, so you can tilt the bit to get things precisely on center. Some just have a flat bottom. Re: 4-way tool post Post by Mr Ron » Mon Nov 09, pm Thanks all; my 4-way has only 4 positions, but I think that is good enough for me.

However, some have detents. The cheapies that come with many cheap import lathes have no detents. Decent versions have typically 12 ball detents. Just enough to be functional.

Good luck, I hope it works out for you. I think you'll find that pretty much every other option is better than a lantern for day to day use. The threaded center hole is the wrong size but that tee nut DOES fit in between the 4 feet on the bottom of the tool post. It appears that we could either turn a round tee nut that will barely fit between the feet, or mill another rectangular tee nut that has holes drilled into it to accomodate the 4 little feet.

Still, I'm hoping to hear from somebody who has first hand experience with a 4 way tool post exactly like this one. If that turns out to be somebody who has this very same lathe and tool post, what a perfect world it would be!

Regards and thanks! A 4 way toolpost has to have a way to rotate it from one position to the next without losing it's location. The bolt that fixes it to the compound should be immovable, locked to the center portion of the post. Any spacers should be such that the bottom of that round part is firmly held against the compound surface. As for center height A unique shim under each individual tool will bring the tool's cutting edge to center height.

When changing tools it helps to keep the shim with the tool. Good luck. Vernon Tuck , Mike C. Hi Dan, Hugely helpful, thanks! The new plan a is to mill a new rectangular tee nut of very ample proportions. We will through drill the tapped center hole plus the holes for the 4 little feet and then mill down the recessed edges to get a close fit between the tool post and the tee slot. For a real machinist this would be a no-brainer project. For us though, it is pushing the envelope of our skill.

Glad to be able to help. Just in case it's not obvious, a bolt will go through the center hole all the way down to the tee-nut.

That bolt should only bear upon the central shaft of the post. Make sure you can still tighten and loosen the bar on top to allow the holder to pivot while the central part is snugged down on the compound. Hey, Vern, I don't use my 4-way tool post anymore. I went to the barn and dug it out of the pile and it doesn't have those feet. It's yours if you want it. Dealing with the same concerns on a newer model.



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