ER32 tooling for a mini lathe

[Tokarev]

In my 7x8 mini lathe I most often work with round bars or machine screws, but also with larger odd size and shape raw materials.
Switching 3 and 4 jaw chucks seems to be very time consuming compared to the jobs.
I looked on the ebay and found that for less than $120 this www.ebay.ca/itm/382075467974 can be had.
All I would need to add would be a 1/2-13 threaded rod for a draw bar which I could get for about $5 from the local industrial fastener supply.
I never used collet holder previously. Is this going to be good enough for 1/1000" centering? That's all I can dream of with the mini lathe.

[Calamity Jake]

There used for a milling machine not a lathe.

I don't think anyone makes a draw bar system for a mini lathe
but you might check here:https://littlemachineshop.com/?Source=Google&device=c&keyword=little%20machine%20shop&utm_medium=referral&gclid=CIiGppOQ1dQCFQJrfgodaV4CVQ

[BigEyeBob]

I use er32 collets on the myford lathe I have , they are excellent . problem with the chuck with the taper and draw bar is you are restricted with the length of the work piece .The myford has a chuck that screws onto the spindle I adapted a er32 chuck that screws onto the spindle with a through hole ,which enables me to put long rods through the spidle bore up to 5/8 " diameter. Otherwise the er32 are very very useful .They are very accurate. Ialso use the collets in my milling machine so they get used frequently.
The collet set I bought are metric sizes ,there is a better range of sizes in the metric set and they can be used for imperial sized work.
They can be used on the lathe not just for a milling machine as some one posted .
My big lathe has an adapter I made up for the er32 collet chuck to fit onto a D4 backplate so I can use them on it.
BigEye

[Tokarev]

I too noticed that the metric sets offer a wider range and shorter intervals in each collet.
The drawbar should not be a problem, I'll manufacture a bushing for the spindle bore and use a wing nut to tighten.

[Nueces]

A good resource for small machine guys is http://www.arceurotrade.co.uk in the UK. Fine folks and shipping costs are not too bad.

I have spindle chucks for my Myford Super 7 and the Clausing 8530 mill in ER25 and ER32. As BigEye said, they are super for holding tools or round work. Be careful that the held shank occupies most of the collet length - don't want to hold anything just at the mouth, as collet damage will result.

[BigEyeBob]

IiRc my metric collets start at 1mm not sure would have to check ,but I know I have 19 in the set. Was thinking of getting a set of er40 for my large lathe as they reach up to 25mm.

[marvelshooter]

What you are proposing should work fine as long as your lathe will accept the taper shank on the holder. You won't be able to hold long parts like a normal lathe collet setup can. You might look into inch size collets instead of metric depending on what size most of your work will be.

[Nueces]

For lathe use, there are backplate mounted ER collet chucks which accept long work that fits through the spindle. See:

http://www.arceurotrade.co.uk/Catalogue/Collets/ER-Lathe-Collet-Chucks/ER32-Lathe-Collet-Chucks

and

http://littlemachineshop.com/products/product_view.php?ProductID=4231&category=-421559299

[indian joe]

I use er32 collets on the myford lathe I have , they are excellent . problem with the chuck with the taper and draw bar is you are restricted with the length of the work piece .The myford has a chuck that screws onto the spindle I adapted a er32 chuck that screws onto the spindle with a through hole ,which enables me to put long rods through the spidle bore up to 5/8 " diameter. Otherwise the er32 are very very useful .They are very accurate. Ialso use the collets in my milling machine so they get used frequently.
The collet set I bought are metric sizes ,there is a better range of sizes in the metric set and they can be used for imperial sized work.
They can be used on the lathe not just for a milling machine as some one posted .
My big lathe has an adapter I made up for the er32 collet chuck to fit onto a D4 backplate so I can use them on it.
BigEye
I bought a ER25 set for my mill and as well got a second (parallel shank) collet chuck that I use in the three jaw of my lathe for small fiddly bits - these collets will hold (grip) the tapered profile of a brass case (within limits I guess - but 44/40, .303 brit, 22/250 work) so you could do stuff like turn rim diameter down real easy and quick - I like that you get good grip without marking stuff - great for dressing up small screws etc . Chinese stuff off Ebay - mine is ok .

[DCP]

Just make the draw bar. Its just a long bolt