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  1. EmcoV10lathe
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Spindle size and thread alien to manual

 

Hello again gents ;)
?
Im not having much luck but enjoy a challenge!?

for some reason my spindle has a thread major diameter of 33mm…..
?
un clear on thread pitch !
?
has anyone else discovered a difference in size vs the manual?
?
Ricky
 

开云体育

Hi Ricky

Up until November 1968 the Emcomat / Maximat 7 had a spindle thread of M33x3.5mm and a 16mm bore with MT-2 socket

This was subsequently changed to match the ones on the V10/P range

Regards,

Carvel

?

From: [email protected] [mailto:[email protected]] On Behalf Of teamricky.m via groups.io
Sent: Thursday, May 1, 2025 8:36 PM
To: [email protected]
Subject: [emcoV10lathe] Spindle size and thread alien to manual

?

Hello again gents ;)

?

Im not having much luck but enjoy a challenge!?

for some reason my spindle has a thread major diameter of 33mm…..

?

un clear on thread pitch !

?

has anyone else discovered a difference in size vs the manual?

?

Ricky
 

Thanks for the info :)
?
The lathe is a proper classic ! I have managed to find a good back plate which I need for a four jaw chuck …
?
sone of the ones out there say fir wood but they still look pretty good strength wise but I have asked the sellers if it’s ok for my application, Hopefully problem solved !
?
bonus here is the mill and geadstock share the same 2MT so I can interchange the relevant accessories….
?
Ricky
?
 

开云体育

Hi Carvel,

?

Of course, these measurements are for the earlier METRIC version of the Maximat 7.? My 1967 IMPERIAL version of the Maximat 7 also had the smaller bore and an MT-2 socket, but has a spindle thread diameter of 1.5 inches by 8 TPI.?

?

Jerry F.

?

From: [email protected] [mailto:[email protected]] On Behalf Of cwlathes via groups.io
Sent: Thursday, May 01, 2025 1:19 PM
To: [email protected]
Subject: Re: [emcoV10lathe] Spindle size and thread alien to manual

?

Hi Ricky

Up until November 1968 the Emcomat / Maximat 7 had a spindle thread of M33x3.5mm and a 16mm bore with MT-2 socket

This was subsequently changed to match the ones on the V10/P range

Regards,

Carvel

?

From: [email protected] [mailto:[email protected]] On Behalf Of teamricky.m via groups.io
Sent: Thursday, May 1, 2025 8:36 PM
To: [email protected]
Subject: [emcoV10lathe] Spindle size and thread alien to manual

?

Hello again gents ;)

?

Im not having much luck but enjoy a challenge!?

for some reason my spindle has a thread major diameter of 33mm…..

?

un clear on thread pitch !

?

has anyone else discovered a difference in size vs the manual?

?

Ricky
 

Hi Ricky ,because you are happy with spindle bore MT2 you have now ,but if you any time looking for biger bore you replace your MT2 for MT3 diameter for bearings are same ,i did it in my lathe ,what is different is length of nose , longest is M39x4 , shorter is 1/2x8TPI and your is somewhere between?:-DB-)?
my regards Roman

Thanks for the info :)
?
The lathe is a proper classic ! I have managed to find a good back plate which I need for a four jaw chuck …
?
sone of the ones out there say fir wood but they still look pretty good strength wise but I have asked the sellers if it’s ok for my application, Hopefully problem solved !
?
bonus here is the mill and geadstock share the same 2MT so I can interchange the relevant accessories….
?
Ricky
?

IMG20240916095516.jpg
IMG20240916095546.jpg
IMG20240916095526.jpg
IMG20240916095535.jpg

 

Yes I’m happy with 2MT ?:)?
compared to what I’m used to it generally has a heap more rigidity!
?
I’ve ordered 3 different types of back plate to mount the chucks I would like to run …
?
Collet chuck with pass through?
3 jaw?
4 jaw independent?
?
I have just gone through the chuck that came with the lathe and it’s probably at the end of its life , The back plate for it is only 1/4” flange so not the best.
?
The chuck is a 4” Bernard grip true
its been installed badly from day one with no way to tighten the intermediate screws therefore the 3 taper pin adjustment screws have chewed up the intermediate plate and chuck pretty badly?
?
It was missing one main mount screw
?
The jaws were bell mouthed
?
The jaws do not grip parallel to the ways
?
So a re grind definitely needed but I’m not prepared to set up for a tool post grinder vs the cost of a good replacement on a thicker back plate !
?
Im looking at a Sanou k31 100 - 125 mm
?
or Indexa 125mm front mount with independently adjustable jaws (same out come and concept of the old chuck)
?
Ricky
 

开云体育

Hi Jerry

Thanks for filling in the gaps ?

Regards,

Carvel

?

From: [email protected] [mailto:[email protected]] On Behalf Of Gerald Feldman
Sent: Friday, May 2, 2025 1:55 AM
To: [email protected]
Subject: Re: [emcoV10lathe] Spindle size and thread alien to manual

?

Hi Carvel,

?

Of course, these measurements are for the earlier METRIC version of the Maximat 7.? My 1967 IMPERIAL version of the Maximat 7 also had the smaller bore and an MT-2 socket, but has a spindle thread diameter of 1.5 inches by 8 TPI.?

?

Jerry F.

?

From: [email protected] [mailto:[email protected]] On Behalf Of cwlathes via groups.io
Sent: Thursday, May 01, 2025 1:19 PM
To: [email protected]
Subject: Re: [emcoV10lathe] Spindle size and thread alien to manual

?

Hi Ricky

Up until November 1968 the Emcomat / Maximat 7 had a spindle thread of M33x3.5mm and a 16mm bore with MT-2 socket

This was subsequently changed to match the ones on the V10/P range

Regards,

Carvel

?

From: [email protected] [mailto:[email protected]] On Behalf Of teamricky.m via groups.io
Sent: Thursday, May 1, 2025 8:36 PM
To: [email protected]
Subject: [emcoV10lathe] Spindle size and thread alien to manual

?

Hello again gents ;)

?

Im not having much luck but enjoy a challenge!?

for some reason my spindle has a thread major diameter of 33mm…..

?

un clear on thread pitch !

?

has anyone else discovered a difference in size vs the manual?

?

Ricky
 

Hi Ricky,

IF you decide to go for the Sanou, be prepared to strip it down completely as soom as you receive it and do some cleaning up and deburring (mine had bits of swarf falling out of it and the mechanism was graunchy when I got it) - one clean and deburr on te gear parts and reassembly with a good grease and it's sweet now. Doean't get a huge amount of use as it's on the dividing head but the work on it was definitely necessary. Whether the supply chain has cleaned up (pun intended) it's act and strip and reassembly is no longer necessary will wait to be seen. I don't have any experience with Indexa chucks so can't comment.

The chuck on my V10P is one of the reversible jaw types from Bison and although it wasn't cheap it's never given me any cause to doubt it. (it's actually moved over from my original V10 to the V10P since I'll be trying to get the V10 up and ready for sale in a few months).

Tim

On 03/05/2025 18:33, teamricky.m via groups.io wrote:
Yes I’m happy with 2MT ?:)
compared to what I’m used to it generally has a heap more rigidity!
I’ve ordered 3 different types of back plate to mount the chucks I would like to run …
Collet chuck with pass through
3 jaw
4 jaw independent
I have just gone through the chuck that came with the lathe and it’s probably at the end of its life , The back plate for it is only 1/4” flange so not the best.
The chuck is a 4” Bernard grip true
its been installed badly from day one with no way to tighten the intermediate screws therefore the 3 taper pin adjustment screws have chewed up the intermediate plate and chuck pretty badly
It was missing one main mount screw
The jaws were bell mouthed
The jaws do not grip parallel to the ways
So a re grind definitely needed but I’m not prepared to set up for a tool post grinder vs the cost of a good replacement on a thicker back plate !
Im looking at a Sanou k31 100 - 125 mm
or Indexa 125mm front mount with independently adjustable jaws (same out come and concept of the old chuck)
Ricky
 

开云体育

I purchased a 6-jaw Sanou chuck and I disassembled it for cleaning. It was clean inside and lubricated. I squirted some extra oil here and there to justify my opening it and that was that.?

Of course, your mileage may vary, and with any chuck, I would open it up anyway, just to be on the safe side.?

The one thing I hated was that stupid chuck key that came with a spring. I ripped off the spring and threw it away. I acknowledge the safety factor that comes with the spring, but I just did not like it in my shop.?

Best Regards,
Andrei

From: [email protected] <[email protected]> on behalf of Tim D Schomer <rototype@...>
Sent: Saturday, May 3, 2025 2:32 PM
To: [email protected] <[email protected]>
Subject: Re: [emcoV10lathe] Spindle size and thread alien to manual
?
Hi Ricky,

IF you decide to go for the Sanou, be prepared to strip it down
completely as soom as you receive it and do some cleaning up and
deburring (mine had bits of swarf falling out of it and the mechanism
was graunchy when I got it) - one clean and deburr on te gear parts and
reassembly with a good grease and it's sweet now. Doean't get a huge
amount of use as it's on the dividing head but the work on it was
definitely necessary. Whether the supply chain has cleaned up (pun
intended) it's act and strip and reassembly is no longer necessary will
wait to be seen. I don't have any experience with Indexa chucks so can't
comment.

The chuck on my V10P is one of the reversible jaw types from Bison and
although it wasn't cheap it's never given me any cause to doubt it.
(it's actually moved over from my original V10 to the V10P since I'll be
trying to get the V10 up and ready for sale in a few months).

Tim

On 03/05/2025 18:33, teamricky.m via groups.io wrote:
> Yes I’m happy with 2MT ?:)
> compared to what I’m used to it generally has a heap more rigidity!
> I’ve ordered 3 different types of back plate to mount the chucks I would
> like to run …
> Collet chuck with pass through
> 3 jaw
> 4 jaw independent
> I have just gone through the chuck that came with the lathe and it’s
> probably at the end of its life , The back plate for it is only 1/4”
> flange so not the best.
> The chuck is a 4” Bernard grip true
> its been installed badly from day one with no way to tighten the
> intermediate screws therefore the 3 taper pin adjustment screws have
> chewed up the intermediate plate and chuck pretty badly
> It was missing one main mount screw
> The jaws were bell mouthed
> The jaws do not grip parallel to the ways
> So a re grind definitely needed but I’m not prepared to set up for a
> tool post grinder vs the cost of a good replacement on a thicker back
> plate !
> Im looking at a Sanou k31 100 - 125 mm
> or Indexa 125mm front mount with independently adjustable jaws (same out
> come and concept of the old chuck)
> Ricky
>






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