Search results

Jens, it is just a stationary engine set up, not driving anything . Ken, thank you , we’re beginning to understand the technical side a bit more now, my apprentice is my grandson, his other grandad died when he was six days old. He was a model engineer and had built a 5” loco that was almost...

Cheers Ken we will only be using this boiler for a Stuart S50 engine but we're still looking for the specs for this engine pressure wise. I can change the firebox for 10 gauge, are the cross tubes ok at 10mm dia x 1mm wall ? Thanks for your help and best regards sutty

Cheers K2, there's no rush we're away for a couple of weeks so cant do much except read and research. we've had another go at sorting out the boiler so if you have a look at it and see what you think all 16 gauge except the cross tubes, there are 8 of those, in the firebox they're 10mm x 1mm...

K2, just read your last post, I can see a complete re-design coming, what kind of wall thickness for the smaller cross tubes ? can they be machined from solid copper bar ? what is a radiant burner ? where are the 8 x 1/4 tubes situated ? in the flue or in the water ? regards sutty

Cheers Steamchick, the boiler casing is 76mm o/d with a 1.3 wall, the flue is 25.4mm dia with a1.65mm wall and the cross tubes are 15.9mm dia with a wall thickness of 1.7mmm. I was going to make the ends from 1.5mm. I'm still working my way through the book Mechanicboy sent me, interesting...

Thanks for the encouragement guys, we've got enough material to start making things I think the first job will be the burner set and meths tank, I have some spare copper plate for him to practice his silver soldering on. Like I said I'm totally ignorant where steam is concerned and didn't...

Jens, thank you very much. That worked, now I have some reading to do. I will post some pix of the journey. Best regards sutty

Jens , I did try that but just got to a site called ToAz, couldn't find anything to download or open. Regards sutty

Thanks guys, The engine we are going to build is a Stuart S 50, from castings. I've been looking on the net but can't find anything on the pressure it needs to run. Stuart models sell a made up unit with the engine and a HB4 boiler, the boiler has a 60psi relief valve fitted. Jens, thank you...

Hello guys. Is there a minimum gauge for wall thickness of small model boilers ? we are about to start building a small vertical boiler to run a small stationary engine. Ive been reading through the probems page and I don't want to build a bomb ! The Boiler we are going to make is 76mm o/d ...

Hello guys. will definitely need some advice along this route I've taken. I desperately feel the need to pass on the last fifty years of making mistakes to my grandson. Ive been an engineer all my life, apprenticed as Fitter Turner at 15 then after the traditional 6years set off on a lifetime...