Hi from Nottingham

[michael]

Ayup rinderpest from Derby!

Quite a few people from Notts, Derby now!
Like that Ugly git John S I don't mind helping out with a bit of turning etc, My first machine had M10 metric thread lead screws and I got pretty good results with a decent nut, Can always upgrade later mate if you get into it!

I did the below with standard 10 x 1.5mm metric threaded bar, Its about 30mm in diameter and done with a 1mm ball nose. Went about 1.5mm deep.

Sorry for crap pic was scanned in off the block of 20mm thick ally

[Lee Roberts]

The site automagically *'s out :naughty: Words

[John S]

Jim,
Arkwell Fasteners over in Long Eaton, up the side road, Chapel Street, at the side of Do It All, stock some trapezoid screw.

Kingston Engineering [ google ] also stock this and the nuts.

John S.

[rinderpest]

Thanks for the info, I always prefer to use a smaller local business rather than a huge company with dozens of outlets.

<rant>
Theres not much choice left for stuff like that, once the big firms have driven all the little ones out of business they can charge what they like. Maplin are guilty of that - RF Potts in derby are just about the only independant component sellers in the area, unless you can persuade some telly-bodger to sell you some spare Rs & Cs.
</rant>

I'll get in touch with them and see what the crack is.
I've definately decided on trapezoid screw; its not too much more than threaded rod price wise its just the machining. But it seems as tho that might not be quite the stumbling block I thought it would be.
Kudos to Michael for saying we might be able to sort something out.

[John S]

I have a couple of lathes that can handle 30mm screws up to about a metre and one that can handle 50mm up to about 3 metres, all capable of metric / imperial threading if anyone gets stuck.

John S

[Lee Roberts]

I may just take you up on that John !

[rinderpest]

Those must be some nice machines John, are they manual or CNC?
Sounds like theres going to be some cooperating going on, great stuff
I reckon those of us who dont already have machines running are going to be on the way pretty soon.