5/6mm steel rod

[cornucopia]

hello folks does anyone have or know where to buy some 3/16" or 5/6mm steel rod?
on some of my hollow forms my normal callipers will not reach the bottom 1/3rd of the piece, i made some ellsworth callipers out of 7mm ally rod which work -but the ally is too soft/bendy so i'm looking for some steel which will hold its shape better.

 

[CHJ]

George, GLR in Daventry are not a million miles from you.

http://www.modelmakingsupplies.co.uk/taps---dies-2.htm

 

[jpt]

HI Goerge

Cromwells do it in silver steel http://www.cromwell.co.uk/CTL4325321Y and I am sure they also do it in mild steel but cant find it on their website. Theres a branch in Leicester so might be worth giving them a ring.

john

 

[cornucopia]

thanks chaps - i will get some on order

 

[alexf]

i made some ellsworth callipers out of 7mm ally rod which work

I have been looking for a design for these but can't find one, any chance of a picture?

 

[cornucopia]

I cant take a pic from david ellsworth book as i think it would be breach of copyright but when i get the steel i can take a pic of what i make- the ally ones have now been binned.

 

[duncanh]

i made some ellsworth callipers out of 7mm ally rod which work

I have been looking for a design for these but can't find one, any chance of a picture?

Here's a post I made about making and using a wire for measuring wall thickness.
I just bought what looked to be the best thickness rod from B&Q

Duncan

 

[The Shark]

Hi George,
There is an engineering firm in Hinckley that does it - I bought some the other week at 6mm.

Malc

 

[Anonymous]

6 mil mild steel rod ...B&Q ....simples :wink:

 

[Scrums]

Possibly a bit late now....

I have about 40 metres 6mm stainless rod....if anybody wants some let me know.

Chris

 

[wizer]

Yes I am Scrums, PM sent.

 

[cornucopia]

i might do chris i will see how i get on with the stuff i've orderd

 

[cornucopia]

some 3/16" steel turned up today from cromwells- excellent service.

heres what i've done

just like David Ellsworth's

the silver steel seems to have just the right amount of spring and memory to it- so they work very well.

 

[wizer]

so you set your thickness and run one side on the inside and use the other end as a visual indicator? Am I getting that right.

Might have to make one of those, cheers George.

 

[Paul.J]

Wizer wrote

so you set your thickness and run one side on the inside and use the other end as a visual indicator? Am I getting that right.

Tom.
Take a look at Duncans post further up.I was asking the same questions.

 

[cornucopia]

so you set your thickness and run one side on the inside and use the other end as a visual indicator? Am I getting that right.

Might have to make one of those, cheers George.

yep you've got it Tom

 

[Bodrighy]

I'm being really thick here probably but if it's thinner than the required dimensions you will get a gap between the outside leg and the wall....if it's thicker how will it be seen as the wire will simply open up and rub outside and inside won't it?

Pete

 

[cornucopia]

if you've set the gap on the calliper at an inch and you get no gap then you know its not thin enough yet and go back in- if you get a gap of 3/4" you know your nearly there.