My Spidah

[NezRongero]

Speaking of chucks, I am beginning to like my 2 pinion Bison combination chuck. You have the convenience of a scroll chuck with adjustability of a 4J. On the same size material running the jaws in with the pinions gets you to close to the same repeatability of a set thru, dialing the 4J thereafter just requires minimal tweaking.

 

[dmort]

Speaking of chucks, I am beginning to like my 2 pinion Bison combination chuck. You have the convenience of a scroll chuck with adjustability of a 4J. On the same size material running the jaws in with the pinions gets you to close to the same repeatability of a set thru, dialing the 4J thereafter just requires minimal tweaking.

Had a Bison go through my hands sometime back. A nice piece ......I think it was from Poland.


Mort

 

[martin zuck]

Who is a life long machinist advised me to use my 4 jaw exclusively so that it became second nature. I have used it a lot and don't struggle zeroing things in. I watch mostly Youtubes for television so I have watched many lessons on using 4 jaw chucks and any other kind of chuck one can think of. I like being able to quickly turn some round thing if I want without going through the zeroing thing though. I also have a set of ER 40 collets for my lathe, which I use as well if I think I should.

Pete

Years ago I couldn't afford a 3 jaw chuck so I got real handy using a 4 jaw. Eventually I was able to acquire a 3 jaw and life got better. Then a while back I bought 68 5C collets for 75 bucks at a flea market. Life just keeps getting better

 

[Pete Wass]

I like the ER 40's

Years ago I couldn't afford a 3 jaw chuck so I got real handy using a 4 jaw. Eventually I was able to acquire a 3 jaw and life got better. Then a while back I bought 68 5C collets for 75 bucks at a flea market. Life just keeps getting better

My lathe didn't have any collets so I bought the ER40's. Chineseum, of course but they are pretty good. I trued up the three jaw and it runs dead nuts on a ground rod so Life is pretty easy here too. The lathe is a 1994 and still had cosmoline on almost everything. The 4 jaw had never been mounted. Looked like the fellow who owned it trued armatures on it from the chip residue on it. I would say he didn't ever use it much. I got about a grand in it with all the stuff I've bought for it. The only thing about it I don't like is the change gears but the price was right. I can turn wrenches. The tailstock is dead nuts level too.

Pete

 

[martin zuck]

My lathe didn't have any collets so I bought the ER40's. Chineseum, of course but they are pretty good. I trued up the three jaw and it runs dead nuts on a ground rod so Life is pretty easy here too. The lathe is a 1994 and still had cosmoline on almost everything. The 4 jaw had never been mounted. Looked like the fellow who owned it trued armatures on it from the chip residue on it. I would say he didn't ever use it much. I got about a grand in it with all the stuff I've bought for it. The only thing about it I don't like is the change gears but the price was right. I can turn wrenches. The tailstock is dead nuts level too.

Pete

Pete,
Your showing your age. Today most gunsmith machinist would be lost if they had to manually change gears for feeds and threading.

 

[brickeyee]

My lathe didn't have any collets so I bought the ER40's. Chineseum, of course but they are pretty good. I trued up the three jaw and it runs dead nuts on a ground rod so Life is pretty easy here too. The lathe is a 1994 and still had cosmoline on almost everything. The 4 jaw had never been mounted. Looked like the fellow who owned it trued armatures on it from the chip residue on it. I would say he didn't ever use it much. I got about a grand in it with all the stuff I've bought for it. The only thing about it I don't like is the change gears but the price was right. I can turn wrenches. The tailstock is dead nuts level too.

Pete

Armatures are precision but not all that tight.

Brushes have springs behind them for a reason.

And the development of super magnets and poly-phase stators with digital commutation
has given 'permanent magnet' style motors a new lease on life as a technology.

 

[Pete Wass]

Heck,

Pete,
Your showing your age. Today most gunsmith machinist would be lost if they had to manually change gears for feeds and threading.

I'm only 74 Martin. Just gettin started! Wyatt can tell ya that.

Pete

 

[Pete Wass]

Yeah, BUT

Armatures are precision but not all that tight.

Brushes have springs behind them for a reason.

And the development of super magnets and poly-phase stators with digital commutation
has given 'permanent magnet' style motors a new lease on life as a technology.

Them old water wheels and flat belts still work too. Just at a slower pace and where I am at in life now. Heck, I just discovered the Blues group Govt Mule this week! Life is still good.

Pete

 

[brickeyee]

Them old water wheels and flat belts still work too. Just at a slower pace and where I am at in life now. Heck, I just discovered the Blues group Govt Mule this week! Life is still good.

Pete

Anyone with a little training should be able to set up a quality lathe to get one digit past the readings on the cross slide.

You do need a lath that is stiff enough and vibration to hold it.

A lot of it is a pile of setup, measuring, and tooling tricks.