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ER32 Extender

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Vic01/11/2019 10:27:08
2330 forum posts
12 photos

Although over budget I’m seriously considering getting a Turnado.

**LINK**

I have a flange type ER32 chuck but I can’t help thinking to get the most of the Turnado I really need the ER32 Extension also sold by Eccentric Engineering and shown in the video. I’m just wondering how much extra runout I’m likely to get though. Have any of you used an extender or something like it.

Vic01/11/2019 10:38:24
2330 forum posts
12 photos

This is the extender.

**LINK**

John Haine01/11/2019 10:41:34
2694 forum posts
138 photos

Why do you need an extender? Is it because of using a gap bed lathe? That looks quite a pricey accessory, could you not make a fitting to allow the table to sit over the gap? After all you don't need to move the table once set up.

Oldiron01/11/2019 11:00:01
305 forum posts
22 photos

That looks like a project waiting to happen in one form or another. smiley

JasonB01/11/2019 11:03:10
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16541 forum posts
1761 photos
1 articles

Posted by John Haine on 01/11/2019 10:41:34:

Why do you need an extender? Is it because of using a gap bed lathe? That looks quite a pricey accessory, could you not make a fitting to allow the table to sit over the gap? After all you don't need to move the table once set up.

As soon as you get the tool past right angles to the work you will be smashing your knuckles into the chuck's mounting flange

 

You could just get an ER32 chuck on a straight 20mm shank and hold in your existing collet chuck with the ability to slide it in and out as needed

Edited By JasonB on 01/11/2019 11:08:09

Vic01/11/2019 11:04:53
2330 forum posts
12 photos
Posted by John Haine on 01/11/2019 10:41:34:

Why do you need an extender? Is it because of using a gap bed lathe? That looks quite a pricey accessory, could you not make a fitting to allow the table to sit over the gap? After all you don't need to move the table once set up.

If you look at the video you can see the extender is required to get the most of some of the accessories. wink

Vic01/11/2019 11:06:36
2330 forum posts
12 photos
Posted by JasonB on 01/11/2019 11:03:10:

Or you could just get an ER32 chuck on a straight 20mm shank and hold in your existing collet chuck with the ability to slide it in and out as needed

That limits the size of material that can be passed through the chuck but it is an option I had considered.

ega01/11/2019 11:13:29
1335 forum posts
109 photos

My two shop-made ER chucks for use on the Myford are long enough to allow the tool to come right up to the collet without the saddle overhanging the bed.

Vic01/11/2019 12:01:27
2330 forum posts
12 photos

This might do the trick but even if it did fit my lathe I doubt I could afford it! sad

**LINK**

old mart01/11/2019 15:03:29
790 forum posts
77 photos

I looked on ebay, and there were er32 holders up to 140mm long in diameters up to 32mm, also MT 2, 3 and 4. The straight shank would fit in a four jaw independent for fine tuning the runout, and be adjustable axially.

IanT01/11/2019 15:33:55
1363 forum posts
137 photos
Posted by Oldiron on 01/11/2019 11:00:01:

That looks like a project waiting to happen in one form or another. smiley

I have an internal turning job that I've been pondering (which is why it's still on my TUIT list) and this attachment would probably solve it - but maybe I can come up with something a bit more limited in scope (and much cheaper) using the same tool-holding/guiding idea.

I actually watched this video a while ago and thought it was very interesting - the guy(s) at Eccentric do come up with some different (e.g. not run of the mill) products. I use my Diamond tool holder quite a bit but this would not get used nearly as much in my general work I suspect (I already have a ball-turner). Neat idea, well executed though...

A useful reminder Vic - thanks.

IanT

victor mcconville01/11/2019 16:12:06
19 forum posts

Hi Vic, Another Vic (Victor J) I have an ER32 Straight Shank Collet Chuck unused from Cutwel (Code ER32-100)

I have extended it by 80mm but it has never been used. It could be held in a four jaw Chuck if need be.

If you PM me I can send photos and can arrange delivery ( I have no use now for this Chuck

Victor J

Vic01/11/2019 17:35:34
2330 forum posts
12 photos

 

Posted by old mart on 01/11/2019 15:03:29:

I looked on ebay, and there were er32 holders up to 140mm long in diameters up to 32mm, also MT 2, 3 and 4. The straight shank would fit in a four jaw independent for fine tuning the runout, and be adjustable axially.

Whilst I’m often switching between a 3 jaw chuck and a collet chuck I only use a 4 jaw in an emergency because I can’t be bothered with the faff to set it up. Putting a collet chuck in a four jaw may be a valid solution for some but it rather defeats the object for me.

If I decide I have enough use to justify the cost of the Turnado I think I’ll just have to stump up the £75 for an extender. Christmas is on the way. A cheap C20 50L ER32 chuck may be an alternative short term solution though. They have them on eBay for as low as £13 inc.

Thanks for the kind offer Victor J, I’ve sent you a PM.

Edited By Vic on 01/11/2019 17:36:24

not done it yet01/11/2019 19:12:42
3570 forum posts
15 photos
Posted by Vic on 01/11/2019 17:35:34:

They have them on eBay for as low as £13 inc.

I bought a cheap one. Replaced by a good one. The bang for the buck was not good!

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