[rob1934]

Don,

I saw your closer and modifications on another thread. I decided on the Atlas because it also is a D1-4 mount, but the biggest reason for the Atlas is the dead length function. It already has the through hole, and quick disconnect hoses.

The price was pretty much the same. The Tormach is so new, I knew I'd never find a used closer. I'll doing a lot of production work, so I'm hopeful this will all pay off.

Rob

Attachment 259850

[tmarks11]

That is pretty wild. Expensive, but considering that a Bison 5c chuck with a D1-4 mount will run about $800, not unreasonable. Nice that it leaves your through hole unencumbered. Although the 5c chuck isn't going to max out the 1.4" through hole.

I was sitting there cranking on the doggone key on my Bison 5c yesterday thinking that I wish I had gone for a drawbar. on my manual mill I will have to hunt around for a bit I can chuck in a cordless screwdriver to speed up the process. It is a lot of hand cranking.

[rob1934]

tmarks11,

I took the leap. I know it will pay for itself. The Tormach manual lever closer is $1,000. The Royal is $2,600. I figured for a couple hundred more, might as well get something with production style features.

I've been making the parts on a South Bend with lever 5C closer and 6 position bed turret. I kinda knew what I wanted to get away from

Maybe I should have gone with the 16C size. Time will tell.

[ag53711]

We've added the lathe with turret option to the website today. Here is the link.

As for the pneumatic closer, we are still waiting on the arrival of a few components. Right now, the anticipated release will be sometime Q1 2015 if all continues to go as planned.

[Don Clement]

That is pretty wild. Expensive, but considering that a Bison 5c chuck with a D1-4 mount will run about $800, not unreasonable. Nice that it leaves your through hole unencumbered. Although the 5c chuck isn't going to max out the 1.4" through hole.

I was sitting there cranking on the doggone key on my Bison 5c yesterday thinking that I wish I had gone for a drawbar. on my manual mill I will have to hunt around for a bit I can chuck in a cordless screwdriver to speed up the process. It is a lot of hand cranking.

I have a Bison 5C chuck mounted on my 8" Tormach RT. See photo below. I use a Craftsman speed wrench Craftsman Universal Joint (3/8 Drive) angles in with a Harbor Fright 1/2" to 3/8" adapter (modified to 9mm) 3 Pc Impact Socket Adapter Set to quickly tighten or loosen the Bison 5C chuck.
Since the Tormach slant lathe has the ability to take a 5C adapter right in the spindle I don't see any advantage of using a D1-4 Bison 5C chuck on this lathe. Also the maximum through 5C collet is 1.063" so one couldn't use the full 1.4" through hole anyhow. Even a hollow drawbar has enough ID to accommodate a 1 1/16" through part.

One of the advantages for me in using the Royal pneumatic 5C closer is the ability to quickly and repeatably dial in the closing force using the differential air pressure regulator shown below. I used this feature for machining thin walled Turcite parts held in a 5C collet without distorting the part. Perhaps one could do the same thing with the Atlas pneumatic 5C closer.

Don C.

[ag53711]

In stock and shipping now.

[MichaelHenry]

In stock and shipping now.

Thanks Andy. Just need to make room and check my budget before ordering.

Mike

[karloterrazas]

Don,

I saw your closer and modifications on another thread. I decided on the Atlas because it also is a D1-4 mount, but the biggest reason for the Atlas is the dead length function. It already has the through hole, and quick disconnect hoses.

The price was pretty much the same. The Tormach is so new, I knew I'd never find a used closer. I'll doing a lot of production work, so I'm hopeful this will all pay off.

Rob

Attachment 259850

Im planing to buy an atlas collet closer, how does yours work along this time?

[rob1934]

Im planing to buy an atlas collet closer, how does yours work along this time?

Works great! It’s on the lathe 90% of the time.

The only regret was not purchasing the 3J collet size. With 3J, one can go up a few more sizes to the spindle ID. Everything else I have has a 5C setup, so I went with that size. So now I’m limited to 1” bar feed.

[maker of things]

Im planing to buy an atlas collet closer, how does yours work along this time?

Is there a reason you don't want the Dunham system Tormach sells? Everything is already made to fit the machine and it comes with the interface needed. Just curious. FWIW Tormach now sells the EZ puller with a stem to fit the round tool holders if you have a turret.

[mountaindew]

Is there a reason you don't want the Dunham system Tormach sells? Everything is already made to fit the machine and it comes with the interface needed. Just curious. FWIW Tormach now sells the EZ puller with a stem to fit the round tool holders if you have a turret.

I'm wanting one for the 8l lathe. For me this is same as pdb on mill. It is almost required to have. To many doors to open and close, to many things to loosen and tighten. In short not real handy to do all those steps . Not having to open motor cabinet and tighten collets would be a good start in less steps

[karloterrazas]

I'm wanting one for the 8l lathe. For me this is same as pdb on mill. It is almost required to have. To many doors to open and close, to many things to loosen and tighten. In short not real handy to do all those steps . Not having to open motor cabinet and tighten collets would be a good start in less steps

I agree with you, i had to quote 1000 delrin pins, it uses 4 tools and the only way to win the job is to make the part in less than a minute, open and close, loosen and tighten, it´s against wining job quotes.

[karloterrazas]

Is there a reason you don't want the Dunham system Tormach sells? Everything is already made to fit the machine and it comes with the interface needed. Just curious. FWIW Tormach now sells the EZ puller with a stem to fit the round tool holders if you have a turret.

the point that you can change from collet to chuck, easy and quick got my attention, not needed to worry about the draw tube anymore or adapters. The only drawback is that i have never seen one atlas in function, not even on video...

[shred]

the point that you can change from collet to chuck, easy and quick got my attention, not needed to worry about the draw tube anymore or adapters. The only drawback is that i have never seen one atlas in function, not even on video...

FWIW, the Dunham I have on my SL15 (similar to the Tormach,closer but pre-dating it) does not require anything to be removed or replaced to switch between chuck and collets, although removing and replacing the chuck is probably a good plan..