EMCO MAXIMAT V10 LATHE

[MickBParticipant @mickb25219]

I have just taken delivery of the above but it has suffered some damage in transit. The bracket holding the lead screw to the main lathe body at the tailstock end has sheared in two.
Any ideas on replacement parts at all?

Thanks

 

 

 

[Joseph Noci 1Participant @josephnoci1]

No spares at EMCO Austria, none at EMCO in South Africa either – unlikely to find as a used part since it would probably be attached to a whole lathe…If you are not averse to joining Groups.io you can try the EMCO V10 group – good folk there – https://groups.io/g/emcoV10lathe/topics.

ELse just make a new part – it is quite a simple part- from aluminium, you could even get away without the bronze bush if lazy.

[Michael GilliganParticipant @michaelgilligan61133]

If this is the item in question …. it looks like ‘a breakage waiting to happen’

https://www.ebay.com/itm/267030797579

MichaelG.

[MickBParticipant @mickb25219]

I think that’s a part from the power cross feed version but similar concept

[bernard towersParticipant @bernardtowers37738]

As said before quite a simple part or there is silver solder or brazing with manganese bronze rods.

[MickBParticipant @mickb25219]

Bernard

 

I think I will try and find a local welder who is capable and prepared to do the job.

Unfortunately I have no skills whatsoever to make such a thing but am very grateful for your advice .

 

MickB

[MickBParticipant @mickb25219]

Joseph

 

Many thanks for that link.The first comment on the site has been posted by the chap who sold the lathe to me!!

Have to feel for him, I don’t think he could have done much more to wrap and protect the lathe but it still didn’t make it undamaged.

I will try locally to see if it is feasible to repair it I think

[duncan webster 1Participant @duncanwebster1]

Looks like cast iron, if so then arc welding with nickel rods was used to repair a broken cylinder casting on  narrow gauge railway I worked on. You’d need to find someone who already had a box of rods, they are very expensive.

In these modern times I wonder if JBweld would be strong enough. The fractured surfaces should knit back together as CI is very brittle.

[duncan webster 1Participant @duncanwebster1]

Google finds loads of specialist cast iron welders, location will be your problem, they probably won’t be bothered with posting, too much messing for a small job

[Andy StopfordParticipant @andystopford50521]

Since the back is hollow, Duncan’s suggestion of JBWeld, packed into the hollow, seems promising, and it avoids the possible distortion or cracking (a risk with something as thin-walled even with careful pre-heating) from welding.

[John HaineParticipant @johnhaine32865]

Might it be possible to combine JB Weld with inserting a couple of bolts to reinforce?  Glue first, then drill clearance holes.

[Graham MeekParticipant @grahammeek88282]

These brackets on Emco Machines tend to be a Mazak (or Similar) die-casting. I know on the Emcomat 7 which I had, which was a forerunner of the V10, and on my Maximat Super 11, which was the V10 successor that this was made of Mazak.

Given the thrust exerted on this bracket from the leadscrew a new part made from aluminium would be a much better solution.

Regards

Gray,

[MickB]

On MickB Said:

I think that’s a part from the power cross feed version but similar concept

Indeed it is Mick that’s a V10P part with the extra feed shaft hence the two bearing holes.

Please check the leadscrew is still straight before you have it welded. Also be aware that the casting is very likely to warp during a hot process. Yours has also cracked around the end corner as well.

 

As a general usage point never ever change those gears when they are moving or teeth will come off, nor try to forcing the gears into mesh. Rock the chuck back and forth till they engage, the forks are made of cast alloy and will break if you try to force the levers.

 

[MickBParticipant @mickb25219]

Graham

 

i think you are right. This piece has a number

of hairline cracks around it .

The seller has kindly agreed to take it back and have a new one manufactured.

Many thanks for all your kind responses

[Graham MeekParticipant @grahammeek88282]

Mick,

The fact that it is covered with hairline cracks means the metal is suffering from Hydrogen Embrittlement. A lot of the early diecast materials suffered with this. It was an accident waiting to happen.

Regards

Gray,

[egaParticipant @ega]

I shall now go and check the corresponding item on my Myford which is now, I guess, quite a bit older than the Emco!

Does hydrogen embrittlement occur through ageing?

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