ER25 vs ER32 ?

[EdK]

Here's a ER-40 to MT3 for $25.

http://www.tools4cheap.net/proddetail.ph...mt312chuck

Ed

[henryarnold]

(07-01-2012, 12:50 PM)EdAK Wrote: Here's a ER-40 to MT3 for $25.

http://www.tools4cheap.net/proddetail.ph...mt312chuck

Ed

Ed,
Do you have a draw bar? I was planning to make one for my ER40 chuck but then I found out that it is possible to buy extra long machine bolts. I bought mine from a local outfit called McFadden-Dale. I'm sure McMaster-Carr also sells them. One bolt cost $15 but it saved me the trouble of machining a draw bar. I added a shoulder washer I made that centers the head of the bolt on opening at the headstock end.

This is similar to what I used except mine was black oxide steel. Obviously a bigger lathe will require a longer bolt.

http://www.mcmaster.com/#92198A828

Henry

[Bill Gruby]

That's not really a drew bar needed on that ER 40 unit. All you need is something to back up the hold of the taper. A piece of all-thread, couple of nuts and washers will do. The collet is tightened with the nut on the front. I jist use the thru spindle stop I made.

"Billy G"

[EdK]

(07-01-2012, 01:01 PM)henryarnold Wrote: Ed,

Do you have a draw bar?

Henry

Henry,

I don't have that collet chuck in the picture I posted. I just posted it as an alternative source for someone looking. I have this ER-40 collet chuck for my lathe.

Ed

http://www.tools4cheap.net/proddetail.ph...=er40plate

[DanH]

(07-01-2012, 12:39 PM)henryarnold Wrote: Guys,

Thanks. Here's the MT4 - ER40 Chuck I bought. I used a 11" x 5/8" black oxide bolt with a a custom shoulder washer I made as my draw bar it works great. I mounted a 3/4" piece of drill rod in a 3/4" collet and found the run-out on my setup was +/-0.00025. I think that is very good for a $50 chuck.



If you need an ER chuck for mill or lathe, the EBay seller I purchased from sells ER25, ER32, ER40 chucks and collets.
http://www.ebay.com/itm/330497192569?ssP...1497.l2649

I checked out that e-bay seller and their address is in my area, just across the river from Portland Oregon. I am going to see if they sell local as it will save me the shipping fees. Thanks for the heads up Henry.

[henryarnold]

(07-01-2012, 03:02 PM)DanH Wrote:

(07-01-2012, 12:39 PM)henryarnold Wrote: Guys,

Thanks. Here's the MT4 - ER40 Chuck I bought. I used a 11" x 5/8" black oxide bolt with a a custom shoulder washer I made as my draw bar it works great. I mounted a 3/4" piece of drill rod in a 3/4" collet and found the run-out on my setup was +/-0.00025. I think that is very good for a $50 chuck.



If you need an ER chuck for mill or lathe, the EBay seller I purchased from sells ER25, ER32, ER40 chucks and collets.
http://www.ebay.com/itm/330497192569?ssP...1497.l2649

I checked out that e-bay seller and their address is in my area, just across the river from Portland Oregon. I am going to see if they sell local as it will save me the shipping fees. Thanks for the heads up Henry.

The same dealer also has the ER40 wrench for $13. Here's my complete setup. It cost me $80. It does have one disadvantage over Ed's chuck pictured earlier. You can only grip short stock while Ed's chuck will allow you to feed long bar stock through the chuck.
   

[stevec]

(07-01-2012, 01:23 PM)EdK Wrote: Henry,

I don't have that collet chuck in the picture I posted. I just posted it as an alternative source for someone looking. I have this ER-40 collet chuck for my lathe.

Ed

http://www.tools4cheap.net/proddetail.ph...=er40plate

Ed, can we see that set-up on your lathe and also hear about how you mounted it?

[EdK]

(07-02-2012, 03:23 PM)stevec Wrote: Ed, can we see that set-up on your lathe and also hear about how you mounted it?

Steve,

You most certainly can. When I get to that project I will document my butchery with plenty of pictures.

Ed

[stevec]

Ahh! So your "to do list" is like mine, long and daunting.

[EdK]

(07-02-2012, 06:06 PM)stevec Wrote: Ahh! So your "to do list" is like mine, long and daunting.

Since I don't have any ER-40 collets yet, there's very little incentive to tackle that project yet. And yes, it's long and daunting. Ah, the list that is.

Ed