can anyone tell me what kind of collets are used in a capstan lathe or a traub cam auto? i have an image( i hope this works):

http://i16.ebayimg.com/03/i/07/67/50/0e_0.JPG

here's a basic list

http://shopswarf.orcon.net.nz/collet.html

you need to measure these - its hard to tell by looks, there are seemingly endless styles and sizes. still, you may not get an answer, there are just too many possible collet standards or even proprietary ones

can anyone tell me what kind of collets are used in a capstan lathe or a traub cam auto? i have an image( i hope this works):

http://i16.ebayimg.com/03/i/07/67/50/0e_0.JPG

Do you have any pictures that show the back end. These look like what are called 2D collets used for holding bar stock in capstan lathes. If you go to the Hardinge website you should be able to find pictures of 2D collets.

they alsolook like a collet brown and sharp used for yhey grinders

That picture is hard to tell for me. They also look like mill chuck collets....

They look a lot like Swiss Screw Machine Collets.
Would be nice to see if they are threaded on the bottom.
They could be any number of collets, do you have any info on what sizes they are? If they are 1" and under, they are most likely Scew Machine Collets or Tool Holder Collets.
Still just guessing though.

Tough to tell with that photo.

tobyaxis

are these small or large, at a first glance they looked like those used by MAXNC but after looking more closely they appear to be larger. Picture is so small but did u buy them?

nah, i didn't buy them. they are too big for my application. plus i haave opted for a 6" three and four chuck. i did find a company that had them, but i forget what they are now, i'll let you know.

dont worry, if they're too big for u to use they're certainly too big for the maxnc... they just looked familiar. sometimes its too easy to buy stuff on ebay.

I have enlarged that photo 4x

those are hydraulic type milling collets , they're straight collets , i think ,poor picture

Definitely Swiss Screw Machine Collets. check out the Hardinge Tooling website. www.hardinge.com I have no idea as to what size or machine configuration, but definitely Swiss Screw Machine. More than likely an old Nakamura-Tome early 80's. Could also be a Cam style Brown&Sharp Swiss too. Now I miss my Tsugami and Star even more.

What your seeing in the front where the tools are is a Guide Bushing, about 3-4 inches behind it(depending on the Z Axis Stroke) holding the bar stock is the Spindle Collet. The Guide bushing is stationary and so are the tools X and Y are in and out A and B are up and down. The Z is always Positive respectively unless you want to position a tool in front of the Bar Stock without cutting it is Z(-) Negitive. Fun Machines really as all parts are complete with out any secondary operations. Turning, Milling, Cross Drilling at any angle you can imagine. You setup/program/proveout/walk away and check every hour. Holds .0001 all day even in Inconel X750. :D :D :D

http://www.lyndexnikken.com/images/advanced/BT%20Taper%20High%20Speed%20Ultra-Lock%20Milling%20Chucks%20-%20image01.jpg
this is sort of what i was thinking , i m still looking for the one i m thinking of

http://www.lyndexnikken.com/images/advanced/BT%20Taper%20High%20Speed%20Ultra-Lock%20Milling%20Chucks%20-%20image01.jpg
this is sort of what i was thinking , i m still looking for the one i m thinking of

I've worked with Swiss CNC's a lot. These are Swiss without doubt. Check the pics I posted. If they are threaded on the bottom their for the spindle. If they aren't they are Guide Bushings for a Swiss. :wave:

http://www.lyndexnikken.com/catalogpages/ap/AP-60.pdf
here we go , we got these suckers at work ,never did stop to check what the proper name is for these ,
tobyaxis i took yet another look at the picture and i beleave your correct , judging by the picture they are going to be tapered near the top , maybe off an old turret lathe

oops missed the pics you posted ,i got stuck on the track , ya no doubt swiss

oops missed the pics you posted ,i got stuck on the track , ya no doubt swiss

LOL, with so many different collets from yesterday and today I second guessed myself like 5 times before posting. Needed evidence and couldn't find it till now.

BTW; The spindle collets have no taper but a step for the Spanner Nut. The Guide Bushing that is shown is radiused like a standard 3C, 4C, or 5C Collet. Did I mension I Love These Machines :banana: :D :banana:

http://www.tsugami.co.jp/eng/indexE.html
http://www.starcnc.com/

:cheers:

Well, they are not 3C, 4C, or 5C
They are not R8
They are not ER (not enough slots, and no top angle)
Possibly from an old Warner-Swasey turret lathe!
They look like Swiss or Italian
Where did the image come from, it may help us identify them!

Eric

side view would do it

Can anyboby tell me why we must believe EIA/ISO program and type of post that will generate for milling(3-axis).I meant why we must change manually intro of program for wach different machine.

don t understand what you are asking ,what is wrong with the program that isnt beleavable or needs to be edited

tobyaxis i took yet another look at the picture and i beleave your correct , judging by the picture they are going to be tapered near the top , maybe off an old turret lathe

they are off an old turret lathe/cam auto :)

they are off an old turret lathe/cam auto :)

Do you know what year and make?

Do you know what year and make?
Herbert, sometime between the 1940s and the 1970s; probably a 2D. I will take a photograph of the dozen or so that I have so you can compare.

Herbert, sometime between the 1940s and the 1970s; probably a 2D. I will take a photograph of the dozen or so that I have so you can compare.

Thanks Geof :)

Collets from Herbert 2D turret lathe. I kept these when I gave away all my old manual machines. We have 3 jaw chucks on our SL10s and have sets of soft jaws machined to fit these collets for doing bar stock. Works quite well but the precision is not good; about the best we can get is 0.003" TIR within an inch of the collet. This is okay so long as the OD of the bar is machined.

Collets from Herbert 2D turret lathe. I kept these when I gave away all my old manual machines. We have 3 jaw chucks on our SL10s and have sets of soft jaws machined to fit these collets for doing bar stock. Works quite well but the precision is not good; about the best we can get is 0.003" TIR within an inch of the collet. This is okay so long as the OD of the bar is machined.


Like you say about machining. I always used the practice of machining everything that could be machined in the first setup/program. As everything is fairly true to eachother depending on how good your machine and setup was when machining.