MT3 Collet Chuck Runout

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Subject Author Date
MT3 Collet Chuck Runout gavaness 04-11-2006
Posted by gavaness on April 11, 2006, 9:58 pm
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I have a MT5 headstock on my lathe. I am toiling with the idea of
buying a MT3 collet chuck and a set of ER40 collets. I want to use a
MT5 to MT3 adapter between the spindle and the collet chuck. The
unknown is the combined runout of the MT5/MT3 adapter plus the chuck
plus the collets themselves. If anyone has been down this road, I'll
appreciate their opinions. Specifically, what runouts are you able to
achieve with this combination system? Thanks for your responses.

Garen Avanessian


Posted by Grant Erwin on April 11, 2006, 10:42 pm
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gavaness wrote:
> I have a MT5 headstock on my lathe. I am toiling with the idea of
> buying a MT3 collet chuck and a set of ER40 collets. I want to use a
> MT5 to MT3 adapter between the spindle and the collet chuck. The
> unknown is the combined runout of the MT5/MT3 adapter plus the chuck
> plus the collets themselves. If anyone has been down this road, I'll
> appreciate their opinions. Specifically, what runouts are you able to
> achieve with this combination system? Thanks for your responses.
>
> Garen Avanessian
>

Why not use an MT5 ER40 holder? I have one surplus to my needs, purchased for
use with a former lathe. It's ETM brand, only used a few times on a tool &
cutter grinder, like new but a tad dusty. Can let it go for 50% of MSC's price
if you want it.

I got a nice set of ER40 collets once, and got adapters to use them on all my
machines. Don't have one with a 5MT spindle any more. I have a 5MT lathe center,
NOS, carbide tip too ..

To email me offline, use http://www.tinyisland.com/email.html, do NOT reply to
this posting as my reply-to address is completely bogus in all ways.

Grant Erwin
Kirkland, Washington


Posted by gavaness on April 12, 2006, 11:10 am
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What runouts are you able to achieve with the MT5 ER40 collet holder?

Garen


Posted by Grant Erwin on April 12, 2006, 12:00 pm
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gavaness wrote:

> What runouts are you able to achieve with the MT5 ER40 collet holder?
>
> Garen
>

No way to test, sorry.

GWE

Posted by Robert Swinney on April 12, 2006, 4:40 pm
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IMO, youd'd be better off to buy a Royal 5-C collet closer and set of
collets. Probably any adapter will introduce too much runout.

Bob Swinney
> gavaness wrote:
>
>> What runouts are you able to achieve with the MT5 ER40 collet holder?
>>
>> Garen
>>
>
> No way to test, sorry.
>
> GWE



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