can any one engineer me this?

[Richard 1234]

you could in theory but the problem with that is you will get play in any joint so i want to avoid it if possible. also they cost £70 each, i should be able to get one long one made for that...

 

 

You should be able to get one made for about £40 I suspect.

I use a place local to me and I need to go if you could give me exact dimensions/sketch I could ask while I'm there.

[difflock]

Suggest simply taking the short one to a engineering shop,

and ask them to make a longer one (to a length of your specifying, unless they object) to the same spec.

M

[LoadhandlerUK]

You should be able to get one made for about £40 I suspect.

I use a place local to me and I need to go if you could give me exact dimensions/sketch I could ask while I'm there.

 

£40 seems tight Male thread would be screwcut - as would female as not feasible to tap it even if you had a tap and M33 is non preferred. And you have to second op it to put the flats on. Plus material - pref not just EN1A?

 

We could make no problem given the sample. PM me if you want. You're looking at £80 (+ vat ) though not £40. Fred in the shed with skill and his wife bringing him tea is what you need for £50. We've got 8 blokes and a £1m of kit to feed but willingly do it if you want.

[cornish wood burner]

you could in theory but the problem with that is you will get play in any joint so i want to avoid it if possible. also they cost £70 each, i should be able to get one long one made for that...

 

I think you might be surprised at the cost of a one off. I would get it made in a high tensile steel such as EN16T. Your machine shop should advise you if you tell them what its for. Needs to be right as you don't want any fatigue failures at the base of the male thread.

I'm sure you realise it will put a lot more load on things so you need to go carefully.

[treequip]

the one in the picture is too short and no one else makes them.

.

 

Did you stop to wonder why that is ???

[se7enthdevil]

because it's not commonly required by wood turners.

[Richard 1234]

£40 seems tight Male thread would be screwcut - as would female as not feasible to tap it even if you had a tap and M33 is non preferred. And you have to second op it to put the flats on. Plus material - pref not just EN1A?

 

 

 

We could make no problem given the sample. PM me if you want. You're looking at £80 (+ vat ) though not £40. Fred in the shed with skill and his wife bringing him tea is what you need for £50. We've got 8 blokes and a £1m of kit to feed but willingly do it if you want.

 

 

It may cost more than £40 I'm just guessing on cost in relation other steel I've had machined at the place I go to. The guy run his metalwork shop in conjunction with the fabricators. I know the guy and any stuff he does for me he does on his lunch break so it takes time!

[treequip]

because it's not commonly required by wood turners.

 

Or, perhaps they accept the limitations of the kit they have bought

[difflock]

JHC

From 7thDevils posts to date, I conclude he is possessed of a well functioning brain.

I cannot imagine he is going to attempt to continue to spin the lathe up to speed if it exhibts ANY untoward behavouir.

The bearings may fail somewhat prematurely, but almost certainly a stupidly high FOS inbuilt.

"Suck it 'n see" springs to mind.

PS

Speaking to a very canny lifetime joiner, who near died as a result of an accident on the 13th of July this year.

Cutting a piece of ply on the table saw in his shed, the ply closed on the back of the blade, climbed and was flipped off the top of the blade, a clipboard sized piece.

It hit him in the stomach and ruptured his bowel.

Accidents will happen.

[se7enthdevil]

JHC

From 7thDevils posts to date, I conclude he is possessed of a well functioning brain.

I cannot imagine he is going to attempt to continue to spin the lathe up to speed if it exhibts ANY untoward behavouir.

The bearings may fail somewhat prematurely, but almost certainly a stupidly high FOS inbuilt.

"Suck it 'n see" springs to mind.

PS

Speaking to a very canny lifetime joiner, who near died as a result of an accident on the 13th of July this year.

Cutting a piece of ply on the table saw in his shed, the ply closed on the back of the blade, climbed and was flipped off the top of the blade, a clipboard sized piece.

It hit him in the stomach and ruptured his bowel.

Accidents will happen.

 

 

thank you very much, although common sense can vacate my brain when required i do usually make the right call saftey wise and still have all my fingers and only one accident which was down to a flaw in the wood rather than a fault on my part.

 

my lathe is an industrially rated jet 3520B that can swing 20" over the bed and will happily accept this thread extension but as i don't think anyone has has one made before i will of course be carefull.

 

i will start to turn at slow speeds and will be getting the extension manufactured from either EN16t or EN24t steel.

 

if the whole project fails then i won't use it and try to finish the bowl in another way.