Making a piston valve engine from mainly junk materials

[crash93]

Well John  (Bogstandard) how did the show go at the week end, any Pictures.?

Peter

[bogstandard]

Hi Peter,
It was a steam fair, so the only pics I took were of stationary engines and a few 3 & 4" scale traction engines. I had a ten minute walk around each day and took a few piccies.
All the other time of the seven hours each day was spent explaining how my engines work on the most visited stand in the modelling tent, they were two deep most of the time, especially when I run up my air turbine generator. Just wait until next year when I get a bit more organised and maybe someone trained up to give me a break. This is what brought them to the stand.

http://www.youtube.com/watch?v=KW6V7JWbQwk

I found a dozen people who were really interested in building my piston valve engine, and so I gave them a disc each with all the plans on, on the understanding that they show me their results.

John

[bogstandard]

Just for a bit of interest about the engines I make, here is one I got running yesterday. It is still in rough form and needs a bit more brightware detailing to get it looking right. But where this one scores is that I took a single cylinder design and added another cylinder to make a boxer configuration and made the burners fixed at the 'sweet' spot. These flame gulper engines are only supposed to be run in a draught free environment and not moved while running because any excuse and they will stop. This one will even run outside because of the fixed burners. When I contacted the original designer, Jan Ridders in the Netherlands, he couldn't believe it, until he saw this video. So now he is going to build one like mine to prove it to himself.
Fame at last.

http://www.youtube.com/watch?v=IyrWRBoC-2c

John

[Doug Gray]

John and All:

Just a word to say thanks for your great effort on this engine and plans.

I'm on the look out now for materials and will start my build soon. I've almost completed a 3d model of the engine and will see if I can perhaps modify some of the shafts etc. to mach my imperial tooling.

Regards Doug (Canada)

[Doug Gray]

I've almost completed the 3d model, thus far it is per plans no changes to imperial yet.

[Doug Gray]

another shot

[kvom]

Doug,

I made a 1.5x version of this engine using "imperial measures".  I found that the sizes of the rods and fasteners made no difference.  Likewise diameters of the pistons and valves.  Any linear dimensions I just multiplied by a consistent metric->imperial factor; since my mill has a DRO, any odd thousands measurement didn't pose a problem.

Kirk