¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Date

Re: ER Collets

 

?Bill
?I purchased the ER16 M12 x 1.0 and the ER20 M12 x 1.0 collet chucks from here.

?

?Not cheap with the shipping to the USA, but great quality.?
?I then picked up the Cheap Chinese sets of Inch and Metric in both ER16 and ER20. The plan is to replace the cheap ones with better ones once I find out the sizes that I use the most. The ER16 set came with two 3mm and no 5mm collet. Because the Ebay seller was a drop shipper, I would have had to wait 2 months to get a replacement. I instead picked up a Techniks brand 5mm collet on Ebay. Better finish with the Techniks one, but the cost for one was equal to 1/2 the price of a full set of cheap ones.?
?I bought the two collect chucks so I can use them in the head and tail stocks at the same time. So far I have had to use them to make a few motorcycle cable fitting parts and no complaints.?
?I also have a Unimat E16 collet with the sizes in 1/32" plus a couple of them in the 1/64" range. The problem with the E16 is the very limited grip range, it is basically good only for the size on in.?

Techniks collet on Ebay


EBAy ER20 Collet set


Very handy Brass, Aluminum and SS rod assortment in 2m to 8m



Jeff


ER Collets

Bill Williams
 

Looking for recommendations for ER collet size for my SL-1000 Unimat. Sizes and sources needed. And BTW I also have an Atlas 618, a 7X1Minilathw and a 12 X 36 Atlas so I don't need a Rex Tingey size capacity! Thanks, Bill


Off Topic...Taig question

 

Has anyone on here worked with one of the Taig mini mills? Can you give me any insight into how robust and capable they are for working with small chunks of 4130/4140 type steels? Accuracy? Are any of the CNC packages worth investing in on these mills? I think I need a retired hobby business to keep me out of trouble and am thinking about going in on after market sights for several .22s and a couple of the milsurp rifles.

If you could send me any comments or observations about the Taig (or others that might fill the bill) by private email it would be much appreciated.

Regards, SSK


Re: Unimat parts for sale

 

Hi Scott,?

Thanks for that, I will not be troubling you again. It is the P & P and taxes that cripple any deals over that distance.?

Good luck?with the sale.

Cheers?
James?


Sent from my Sony Xperia on the hoof
This email contains recycled electrons


On Mon, 25 Mar 2019, 18:27 Scott Garrison garrisonlabs@... [UNIMAT], <UNIMAT@...> wrote:
?

James,


You are correct. I am located in California?

Best,
-Scott?


On Mar 25, 2019, at 12:22 AM, James Batchelor njames.batchelor@... [UNIMAT] <UNIMAT@...> wrote:

?

Hi Scott,?

I take it you are in the States??

Cheers?
James?
Dunfermline, Fife, UK?


Sent from my Sony Xperia on the hoof
This email contains recycled electrons

On Mon, 25 Mar 2019, 01:29 Scott Garrison garrisonlabs@... [UNIMAT], <UNIMAT@...> wrote:
?

Hello group!


I have a watchmakers WW collet spindle and a few collets I am looking to part with.?

I also have a dividing head and 24T gear as well.?

Let me know if anyone is interested, I will wait a week before I list them on Craigslist and eBay.?


Best,
-Scott?


On Mar 24, 2019, at 4:30 PM, caryscotthere@... [UNIMAT] <UNIMAT@...> wrote:

?

The E-16 collets are for the stated marked size only. They have at best about .003" collapse range. When they expanded the E-16 range for inch rounds they went from 1/64" to 5/16" by 64ths + one for a No. 0 drill which if I recall is .035" dia.

Cary


Re: Unimat parts for sale

 

¿ªÔÆÌåÓý

James,

You are correct. I am located in California?

Best,
-Scott?


On Mar 25, 2019, at 12:22 AM, James Batchelor njames.batchelor@... [UNIMAT] <UNIMAT@...> wrote:

?

Hi Scott,?

I take it you are in the States??

Cheers?
James?
Dunfermline, Fife, UK?


Sent from my Sony Xperia on the hoof
This email contains recycled electrons

On Mon, 25 Mar 2019, 01:29 Scott Garrison garrisonlabs@... [UNIMAT], <UNIMAT@...> wrote:
?

Hello group!


I have a watchmakers WW collet spindle and a few collets I am looking to part with.?

I also have a dividing head and 24T gear as well.?

Let me know if anyone is interested, I will wait a week before I list them on Craigslist and eBay.?


Best,
-Scott?


On Mar 24, 2019, at 4:30 PM, caryscotthere@... [UNIMAT] <UNIMAT@...> wrote:

?

The E-16 collets are for the stated marked size only. They have at best about .003" collapse range. When they expanded the E-16 range for inch rounds they went from 1/64" to 5/16" by 64ths + one for a No. 0 drill which if I recall is .035" dia.

Cary


Re: Unimat 3 Collet chuck, ER-16?

 

I found this on the Practical machinist web site:
"Hi,
This may help to make your choice.
About the E-collets and their pro's and con's:
1. SCHAUBLIN originally developed E collets , and later the more accurate ES collets , available sizes 8 - 40mm (E8 - E40)
+ great grip, double angle clamping, average collapse room, great concentricity and quality
- problematic extracting (stuck tooling), pricing(IMO)
2. REGO-FIX improved the E collets by adding an extracting groove to the collet, the nut had an asymmetric rim that grabs in only a part the groove when loosening and thus making axtraction easy, the ER system was pattented, available sizes 8 - 50mm (ER8 - ER50)
+ great grip, double angle clamping , easy extracting, huge collapse room, great concentricity and superior quality
- pricing(IMO)
3. SCHAUBLIN addopted the improvement of REGO-FIX and applied them to their ESX collets, available sizes 11 - 40mm (ESX11 - ESX40)
+ great grip, double angle clamping , easy extracting, huge collapse room, great concentricity and superior quality
- pricing(IMO)
4. E and ES and ESX and ER colletholders of the same size are equal in clamping dimensions BUT:
= ER and ESX collets favour ESX/ER clamping nuts but can use E/ES clamping nuts(no rim) without damage
= E and ES collets NEED E/ES clamping nuts and CAN NOT be used in conjunction with ESX/ER clamping nuts(with rim) because the E/ES collet will be destroyed by the ESX/ER clamping nut's extracting rim and the ESX/ER clamping nut will be damaged beyond repair?
= "20" collets can only be used in "20" colletholders, you cann't use an ER16 collet in a ER20 colletholder

The collets and colletholders that came with early EMCO machines were SCHAUBLIN E25 collets and holders and later EMCO machines had SCHAUBLIN ESX25 collets and ESX25 holders. (Although even a real REGO-FIX ER16-UP(Ultra Precision) M14x1 threaded colletholder for the little EMCO Unimat 3 was an option then.)?
ESX collets are basicly equal to ER collets, they are both very high quality.
Tremendous Grip (ERICSON) collets have an advantage of gripping power by using e less steep angle in it's single angle clamping collet but compared to E/ES and ESX/ER collets the collapse room is less though so you may be forced to buy the "intermediates" when the standard collets don't cover the desired diameters of your cutters. Clamping concentricity is more critical than that of ESX/ER collets due to the single angle clamping design.?
You might also consider the use of OZ (ORTLIEB) collets and holders, they look like TG in their construction and they are equally sturdy. Well known are those of KELCH and of course ORTLIEB.
As for "solid gripping" : it's beyound doubt that SCHAUBLIN and REGO-FIX make some highly accurate and pretty strong holders to take their collets, you can rely on that. The secret may be the steel the're made of and the grinding finish (see picture:



of REGO-FIX ER32 on 25mm shank shaft) of both collets and colletholders of these brands. Equally good are products of DIEBOLD, FAHRION a.o. and almost as highly priced as the formerly mentioned I'm afraid.?
As for RUN-OUT I believe it's best to take the biggest collet and colletholder set of a good make that can take your tool, that will minimize the tolerances when using smaller tooling so your run-out will be minimized as well.
Advice (from REGO-FIX): Don't use WELDON shaft tooling on any of these, concentricity is always compromised by the WELDON-"gap" because the pressure is not equally spread over the clamping surface.
Regards,
Max"

Jeff


Re: Unimat 3 Collet chuck, ER-16?

 

Hey Cary/Group

My collet chuck has the backing plate, and the squared off, not taper closing nut.
Almost certainly it's an ES-16 type. Found a single early Unimat collet, and it closed completely on that. So that's pretty much confirmation.
Fortunately I have an M14x1 Er25 collet chuck as well.... larger range of collets.
Jeff


Re: Unimat parts for sale

 

Hi Scott,?

I take it you are in the States??

Cheers?
James?
Dunfermline, Fife, UK?


Sent from my Sony Xperia on the hoof
This email contains recycled electrons


On Mon, 25 Mar 2019, 01:29 Scott Garrison garrisonlabs@... [UNIMAT], <UNIMAT@...> wrote:
?

Hello group!


I have a watchmakers WW collet spindle and a few collets I am looking to part with.?

I also have a dividing head and 24T gear as well.?

Let me know if anyone is interested, I will wait a week before I list them on Craigslist and eBay.?


Best,
-Scott?


On Mar 24, 2019, at 4:30 PM, caryscotthere@... [UNIMAT] <UNIMAT@...> wrote:

?

The E-16 collets are for the stated marked size only. They have at best about .003" collapse range. When they expanded the E-16 range for inch rounds they went from 1/64" to 5/16" by 64ths + one for a No. 0 drill which if I recall is .035" dia.

Cary


Unimat parts for sale

 

¿ªÔÆÌåÓý

Hello group!

I have a watchmakers WW collet spindle and a few collets I am looking to part with.?

I also have a dividing head and 24T gear as well.?

Let me know if anyone is interested, I will wait a week before I list them on Craigslist and eBay.?


Best,
-Scott?


On Mar 24, 2019, at 4:30 PM, caryscotthere@... [UNIMAT] <UNIMAT@...> wrote:

?

The E-16 collets are for the stated marked size only. They have at best about .003" collapse range. When they expanded the E-16 range for inch rounds they went from 1/64" to 5/16" by 64ths + one for a No. 0 drill which if I recall is .035" dia.

Cary


Re: Unimat 3 Collet chuck, ER-16?

 

The E-16 collets are for the stated marked size only. They have at best about .003" collapse range. When they expanded the E-16 range for inch rounds they went from 1/64" to 5/16" by 64ths + one for a No. 0 drill which if I recall is .035" dia.

Cary


Re: Unimat 3 Collet chuck, ER-16?

 

Hi Jeff,

One possible way to ID you collet chuck is if it has a back plate like the old ones for the SL/DB Unimats then it is probably a E-16/ES-16 holder. If it is one piece and screws directly onto the U3 spindle it is probably for the ER-16/ESX-16 collets. Another visual is to look in to the nut and see if there is a eccentric protrusion near the opening. If it is there the holder is for ER/ESX-16 collets.

Cary


Unimat DB200 parts for sale

 

Hello group!

I have a WW Collet Spindle and draw bar and a few Collets to go with it. I also have a cast iron dividing head and a 24T dividing gear that I am looking to offer for sale to the group before I put them up on ebay. Please contact me directly if?you are interested.


Thanks,
-Scott


Re: Machinable Stainless Steel

 

Thanks Jeffrey, I'll give it a try.?

On Sunday, March 24, 2019, 11:21:13 AM GMT-5, Jeffrey Kropp jeffreykropp1@... [UNIMAT] wrote:


?

"303, nice to me."? May be other types, as well.

Virus-free.

On Sun, Mar 24, 2019 at 9:25 AM jpepper17@... [UNIMAT] <UNIMAT@...> wrote:
?

I need to make some fittings in S. S. but don't know what kind to use. Can any body help? Best regards.

Juan Pepper


Virus-free.


Re: Machinable Stainless Steel

 

"303, nice to me."? May be other types, as well.

Virus-free.

On Sun, Mar 24, 2019 at 9:25 AM jpepper17@... [UNIMAT] <UNIMAT@...> wrote:
?

I need to make some fittings in S. S. but don't know what kind to use. Can any body help? Best regards.

Juan Pepper


Virus-free.


Re: Unimat 3 Collet chuck, ER-16?

 

So can anyone tell me where to buy an ER-16 collet chuck with M14x1 thread in the US?? I prefer to know about a product that has actually been used by someone here.? I do not want to be importing from the UK or Germany, if possible.


Machinable Stainless Steel

 

I need to make some fittings in S. S. but don't know what kind to use. Can any body help? Best regards.

Juan Pepper


Re: Unimat SL

 

If you mean the headstock spindle bearings then yes, see for how I did mine. Replacement bearings can be found on eBay.

Paul B, Derbyshire U.K.

---In UNIMAT@..., <waynzus@...> wrote :

Can the rear bearing (pulley end) be replaced and how and what with. Thanks in advance.?



Re: Unimat SL

 

¿ªÔÆÌåÓý

ISTR that someone said a skate/skateboard bearing was the right size.

Don't know myself, but maybe?

Neil

On 3/23/2019 2:13 PM, waynzus@... [UNIMAT] wrote:
?

Can the rear bearing (pulley end) be replaced and how and what with. Thanks in advance.?



Virus-free.


Unimat SL

 

Can the rear bearing (pulley end) be replaced and how and what with. Thanks in advance.?



Re: Unimat 3 Collet chuck, ER-16?

 

The actual new ER16 nuts are standardized :





  • Holds all ER16 collets
  • Fits most tool holders, regardless of brand
  • Made from alloy steel hardened to 54 - 56rc
  • Precision ground ID thread and taper
  • Has an internal thread of 22mm X 1.5 pitch
  • Outside diameter is 1.1 inches (28mm)
  • Outside hex for tightening is 25mm across flats
  • ER16-Wrench works on this collet nut
  • Internal cam removes collet when unscrewed
  • Black oxide finish
  • MariTool Part# is ER16 NUT
?
?So the ER16 nut has a 22mm x 1.5 pitch, if your chuck has the M22 x 1.5 pitch then yes and the nuts are cheap on Ebay. I have many of the SL1000 lathes and unfortunately the SL lathe chuck uses a different thread. I did order from RC Machines their ER16 and ER20 chucks that fit the SL and then purchased the cheap sets of ER collets on Ebay.? I do have the original SL collet chuck and a full set of the E16 collets down to 1/32" for it also. The E16 collets have a very limited grip range, I think it is only around 1/64" or less. The ER 16 grip range is double, so you only need 1/2 the number of collets to cover the range. The cheap Chinese collets sets work ok, the Techniks brand and the other more expensive ones have a much better finish to them. I plan to slowly replace the cheap ones with the better ones as I find out what sizes I use the most.
?The ER16 collets have double the number of slots cut in them to double the compression range, they also have the groove cut all the way around then for the snap ring in the nut to snap into. All this does is allows the collet to be removed with the nut. The old style E16 sometimes needs to be knocked out with a rod push through the head stock.
?The original E16 collets that Unimat used where Swiss made by the Schaubin company and will cost $30 to $40 plus shipping each on Ebay. I would order a set of the cheap ones and try them.
?


?Jeff