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PB102 is the UK spec for the one I have used I think? I tend to just ask m-machine for some bronze to make boiler bushes Some of the grades dont silver solder well. The leaded ones are poor although most may have a very small lead content. The Aluminium Bronze grades are difficult and some times...

I've been mulling this one over recently http://www.hemingwaykits.com/acatalog/Compact_Rotary_Broach.html

Phosphor Bronze. NOT SAE 660 or any containing lead

Glad you have it sorted The thicker tube maybe an advantage when fitting the smoke box rivets 2inch 20 swg is still available not that it matters cheers

Add double wall to the ID What is the designed safe working pressure? of the boiler?

Some more info on the site in the link Just use google if needed to translate I like cutting my own gears but will admit to having the odd 64and a 1/2 toothed one Steam45 - Presentation - engine

Would have thought soo its just a general mild steel no added lead We have a Black mild steel and a Bright just to confuse matters Did you buy his gears as they are very cheap? Keep well

SAE1021

BMS= Bright Mild Steel= EN3B Ive attached a thread chart Not sure what size domestic/industrial plumbing pipe available in the USA over here it would be a metric size at 54mm. Good luck cheers frazer

Use a good heavy hammer as it dont bounce like a toffee hammer A mash hammer is ideal about 4lb You may do more damage ***** footing about Known as a Birmingham screwdriver this end

Gege89 you have a pm

In reply too Richard There has been a discussion on cut off tools and techniques on the back side of the cross slide. You cannot do this safely if you have a spindle nose that has threads. So be sure to check out what kind of spindle nose you get. My Enco was threaded which caused me a lot of...

I built my 2inch scale Clayton steam waggon on a Myford ML7 with a vertical slide . Would I do it again? No way it was a real pain in the neck literally having to squint around the slide to see the cut It all boils down to what sized bits n bobs you want to make If you ever need any info on...

Found this on the net LBSC Ajax

Hi John, some info in the links. I think LBSC did some drawings for one around 1935? you might find some info on the John-Tom site Locomotive of the Month Maxwell Hemmens Birmingham Dribbler

Happy it is of some use. Keep well cheers

Ive had the attached chart for sometime and it is handy. Just dont tell our lass Im right she will never believe it cheers

The depth for sharp 60 degree V thread form is calculated by D=pitch x cos30 = .866 pitch = .866 /number of threads per inch The depth for American National form is calculated by: .6495 x pitch Depth for Unified is: .6134 x pitch

Also if youre cackhanded enough to break a split style die the wee bits left can also be made into chasers. I have some very old hand chasers that often get me out of trouble although I've only hand chased in brass for old scientific instruments. Keep well

If you have any 26tpi tap ? .You could use it as a chaser to finish the thread Like most I suck it and see for the final few cuts. From memory British Standard Brass is 55 degrees .British Standard Cycle is 60 degrees. It often causes confusion especially if you want a good fit The chart works...