B
Bogstandard
Guest
When I saw the vid of Chucks pseudo hit 'n miss I was mesmerised by it and played it over and over again, and when Chuck gave a very good explanation of the poppet valve system I then decided that I must make one. I am not going into the full build, but just like the mine engine, snippets in time during the build.
When I start an engine I always make sure, if possible, to have the major bits to hand so that I know I won't be held up during the build, a sure fire way of a project finding its way under the bench.
Here is a pic of the basic materials for this project. I have a confession to make, I have already started on it. I had a lump of old rusty steel bar and before going any further I needed to know if it would be any good for the cylinder. It didn't turn out too bad, by the time I had got rid of all the holes and cross drillings in it, there was enough left to make a cylinder for an engine of 1" bore x 2" stroke. A real silk purse out of a pigs ear.
So the other bits are a plasma cutout aluminium 1/2" thick disc that should make the base, uprights and con rod.
Some gears that by machining and ganging will give me a 6 cycle engine.
The top end of a sash weight which will give me the piston, the loop from the top won't be thrown away, there is still a bit of cast in that just begging to be made into something.
A bit of SS rod out of an old printer, and some flanged bearings that I use for everything because I have so many I will be making engines for years to come.
The last bit nearly made me cry when I got it out of my stash, a lump of bar end brass to make a couple of flywheels. I don't know why it upset me because I got a load of it from the scrapyard, but it is just the thought of using it. I just might find a bit of replacement steel so I won't have to use it.
Now lets see if we can make an engine from junk, plus a little bit.
John
When I start an engine I always make sure, if possible, to have the major bits to hand so that I know I won't be held up during the build, a sure fire way of a project finding its way under the bench.
Here is a pic of the basic materials for this project. I have a confession to make, I have already started on it. I had a lump of old rusty steel bar and before going any further I needed to know if it would be any good for the cylinder. It didn't turn out too bad, by the time I had got rid of all the holes and cross drillings in it, there was enough left to make a cylinder for an engine of 1" bore x 2" stroke. A real silk purse out of a pigs ear.
So the other bits are a plasma cutout aluminium 1/2" thick disc that should make the base, uprights and con rod.
Some gears that by machining and ganging will give me a 6 cycle engine.
The top end of a sash weight which will give me the piston, the loop from the top won't be thrown away, there is still a bit of cast in that just begging to be made into something.
A bit of SS rod out of an old printer, and some flanged bearings that I use for everything because I have so many I will be making engines for years to come.
The last bit nearly made me cry when I got it out of my stash, a lump of bar end brass to make a couple of flywheels. I don't know why it upset me because I got a load of it from the scrapyard, but it is just the thought of using it. I just might find a bit of replacement steel so I won't have to use it.
Now lets see if we can make an engine from junk, plus a little bit.
John