Got me a Stuart!

[rleete]

It's a 10V.  Just the castings, no bar stock or hardware.  It's much smaller than I had imagined, and I paid too much for it.  Bought it from eBay.  It's missing parts, too (top and bottom cylinder caps, piston), but that's not a big deal.  I'll make them out of brass for contrast.

I remember seeing a build for one (HMEM?) recently, so that's going to be my "tutorial" on how to make it.  I intend to substitute standard American sizes for the BA hardware, as that's what I have as far as taps and dies.  I also plan on painting it a non-standard color (oh, the horror!) because I don't particularly like the green.  I'll probably use a dark battleship grey.


Can someone point me to someplace I can find the approximate equivalent sizes for BA hardware? 

[Dan Rowe]

The model will look better with model hex bolts, the normal stuff is just to klunky. Here are a couple of links to BA thread info.
http://en.wikipedia.org/wiki/British_Association_screw_threads
http://www.colinusher.info/Livesteam/mewdata.html

Dan

[rleete]

Thank you.  The wiki page has a chart showing sizes, and from that I can infer the approximate english equivalents.  For example, 8BA ia pretty close to #2-56, and 6BA is about the size of a #4-40.

I buy hardware from one of those scale places online, the name of which escapes me at the moment.  So it's realistic enough for me.

[Dan Rowe]

If you click on the link BA(British Association) on the Colin Usher site there is an Excel file that has full BA data including hex size. I do not think there will be any clearance issues with the heads if you are using model hex but it does not hurt to check. I get my model hex stuff from American Model Engineering Supply. 

Dan

[Stuart]

Just a note

If you are looking for a more scale look get them with the next size down heads  i.e. a 8 BA set screw has a 9 BA head  they look much neater


they can be got that way until 10 BA and smaller


Stuart

[smfr]

Is there a good supplier for "one size down" BA fasteners? I recently ordered some normal size ones from http://www.gwr-fasteners.co.uk, but noticed that http://www.ba-bolts.co.uk/steelnut.html do "one size down" sizes. Are there any other suppliers?

Simon

[Jo]

If I buy fastners and one size down heads the cheapest is EKP, who make them. They also supply many of the other model engineering companies.

Myself I make my own in stainless, and EKP are also the cheapest place to buy 303 stainless . But for my very small nuts I have found a supplier who can provide some very nice Swiss nuts (they are not cheap) but they are worth it.

Jo

[Jasonb]

Like Jo I use EKP for most of my BA fixings.

And this is a chart I made up to convert from American to BA but it can work backwards.



J

[tel]

I usually get my BA fasteners from here - much cheaper than I can get 'em in Oz - I can get (even with the postage) about 100 screws for what I would pay for 20 here.

[tel]

... probably worth getting a copy of Andrew Smith's book as well - quite a lot of us cut our teeth on that and the 10V

http://www.amazon.co.uk/Building-Vertical-Steam-Engine-Castings/dp/1857610962

Don't have to buy it from there - lots of places keep it.

[Jasonb]

Harold Hall has a good 27 page build of the 10 which is basically the series he did for Model Engineer not that long ago.

http://www.homews.co.uk/page42.html

J

[mklotz]

Forgot where I got this but it covers what you want.

[rleete]

Thanks, Marv.  Duly downloaded and sent to the printer.

[Pete49]

Thanks Marv and Tel
Pete