Internal hex steel bar or tube

[ih1455xl]

Anyone know where I can get some internal hex 17mm need to make some replacement sprockets to replace the silly plastic Fiona sprockets
Plan b is to buy lots of 17mm hex sockets and cut up

 

[S.Jamieson]

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[ih1455xl]

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I looked at that closest is 16.3mm plus in china

 

[S.Jamieson]

I looked at that closest is 16.3mm plus in china

Ah yes, I read the dimensions wrong.

 

[spark plug]

The easiest way to replicate those would be to get the pilot bore sprockets that you need and find an engineering firm with a wire EDM machine to cut the internal hex.

Your local bearing supplier may know ware to get it done as they would regularly get pulleys bored and keyed for customers.

 

[Exfarmer]

I believe all those scandinavian drills used the same shaft and sprockets. Try Les Carter at Pinchbeck. I bet he has planty

 

[farmgineer]

You can use a rotary broach in a lathe to do that shape over a short ish distance, as per this job. There should be someone with a lathe that can help, if not then PM me for a price. I have a pull type broach in the shed that's set up for another job. I could price for using that but it'll include buying the broaching tool as I don't have one... I don't think they are that much to buy.

 

[milkloss]

Plan b is to buy lots of 17mm hex sockets and cut up

Cheapie sockets at £3 a pop might work out the easiest imo.

 

[Welderloon]

Cheapo 17mm steel chainsaw/lawnmower spark plug sockets is what you are after.
Google a supplier in your locality .

 

[ih1455xl]

This is now plan B fire up the lathe and que the a team music

 

[ih1455xl]

Made a start today when socket came just waiting on plate wheels
Not quite cutting edge engineering but good enough for on farm bodgery

 

[Welderloon]

Lathe use = Engineering thread only....................thems the rules Curtis

 

[clbarclay]

I'm sure some of the more ingenious mad men around here would find plenty of ways to bodge with a lathe, even if it's just welding a few brackets on the lathe and use it as a front weight.

 

[Flatlander]

Water jet cutter woukd knock those out easy and accurately.

 

[TheTallGuy]

Lathe use = Engineering thread only....................thems the rules Curtis

Nah, this isn't the bodge thread, besides which... the amount of rust on that lathe is bordering on criminal - the engineers would be sobbing their hearts out!

 

[davidroberts30]

Cut your own hex with the saddle...

 

[tomlad]

' just saying ' u can dismantle the lock on your tool post, then swing it around , use lock.on the other position. Iyswim.
Be more usable then.
( plus 5 ltr of evaporust , amazon. ) while post off. i battle with rust , damp workshop very upsetting .
Best of luck

 

[davidroberts30]

' just saying ' u can dismantle the lock on your tool post, then swing it around , use lock.on the other position. Iyswim.
Be more usable then.
( plus 5 ltr of evaporust , amazon. ) while post off. i battle with rust , damp workshop very upsetting .
Best of luck

Mine rust too, damp shop etc
I try to leave everything oily

 

[tomlad]

Master plan is it move those things into the smaller room under the loft , rather than in big brick barn shop area. Enclosed , heatable , less dust grit .....

Not happened yet tho. Will need new loft floor .....
On list ..

 

[davidroberts30]

Master plan is it move those things into the smaller room under the loft , rather than in big brick barn shop area. Enclosed , heatable , less dust grit .....

Not happened yet tho. Will need new loft floor .....
On list ..

same list as me