Is this OK for a low pressure steam engine?
Fabricated the set first and then thought about it!
Thanks
Steve
Brass piston in Drawn Gunmetal cylinder?
May 29, 2006
5 Replies
Im not an expert (pretty new to this myself), but AFAIK if the pisto
and cylinder are differing metals it should be ok. (awaits mor experienced (older ;) reply)
Dav
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Hi Steve Yes brass piston and gunmetal cylinder will be fine.
Mike Cole
Thanks - I'll press on (hopefully a better fit than that!).
Steve
My only concern would be that brass tends to become brittle and degrade when in contact with steam - a mate of mine used to work on a preserved railway and told me of the problems they had with brass and steam. I don't know how serious a problem this would be on a model engine.
Cheers Alastair
The cap heads are 3mm to give a scale. Far too big! If this runs long enough for the brass to become brittle it would be fantastic!
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Turned on my C6B, milled on my Warco Mill/Drill and brazed with my Bulldog torch. Not a casting in sight, only scrap out of the box. Flange PCD co-ordinates from excel. Well chuffed.
Steve
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