pauly
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easy to make cylinderHas anyone got some plans for a cylinder I can easily make for my gas engine that I can make from readily available materials. 
(something that doesnt require soldering)
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johnreid
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A short length of pipe or tubing with a cap on one end.
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pauly
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| johnreid wrote: | | A short length of pipe or tubing with a cap on one end. |
are you joking 
I mean a piston
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MooseMan
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If it's not going to get hot you can literally use anything....plastic will do. Maybe a cut-down felt tip or something....as long as you can get two tubes that are a sliding fit, you can make a piston out of the smaller one by filling it with epoxy putty and setting a conrod in it
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johnreid
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A short piece of Brass rod that just fits in the tubing. You migh have to fit it in a drill and sand the diameter down enough for it to slide freely.
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pauly
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Thanks me dads a plumber so got plenty of stuff like that lying around
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MamodFan
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| MooseMan wrote: | | If it's not going to get hot you can literally use anything....plastic will do. Maybe a cut-down felt tip or something....as long as you can get two tubes that are a sliding fit, you can make a piston out of the smaller one by filling it with epoxy putty and setting a conrod in it |
Plastic in a gas engine, I dont think so 
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tmuir
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| MamodFan wrote: | | MooseMan wrote: | | If it's not going to get hot you can literally use anything....plastic will do. Maybe a cut-down felt tip or something....as long as you can get two tubes that are a sliding fit, you can make a piston out of the smaller one by filling it with epoxy putty and setting a conrod in it |
Plastic in a gas engine, I dont think so |
MF gas in CO2 not petrol or methanole.
IN australia they made a toy car you could buy called 'Air Jammer' I think it had a plastic container that you connected a small hand pump to and pumped it up and then it had a simple engine made from plastic that would be driven on this air pressure. The cars would actually go pretty fast for about 10 or 15 meters on a tank of air.
I picked on up a couple of years ago for under $10 from a toy shop for my son (unfortunaetly its broken now) but if you can get one of those cheap that will give you a good engine designed to run on air pressure.
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MooseMan
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| MamodFan wrote: |
Plastic in a gas engine, I dont think so |
We're not talking about combustion here mate...AFAIK this will be a CO2 or just air engine.
Maplins actually sell a little perspex kit that runs with a little hand pump....powers a LED and everything.
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Graham-Jilly
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we loved maplins i could get lost in there for days 
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MooseMan
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I live near a really big one (was that the one you went to?), so if you ever want anything I'll pick it up for you, easy!
This is the "steam engine" I was on about:
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Graham-Jilly
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thanks moosey no it was one in london while we were visiting the daughter
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pauly
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| tmuir wrote: | | MamodFan wrote: | | MooseMan wrote: | | If it's not going to get hot you can literally use anything....plastic will do. Maybe a cut-down felt tip or something....as long as you can get two tubes that are a sliding fit, you can make a piston out of the smaller one by filling it with epoxy putty and setting a conrod in it |
Plastic in a gas engine, I dont think so |
MF gas in CO2 not petrol or methanole.
IN australia they made a toy car you could buy called 'Air Jammer' I think it had a plastic container that you connected a small hand pump to and pumped it up and then it had a simple engine made from plastic that would be driven on this air pressure. The cars would actually go pretty fast for about 10 or 15 meters on a tank of air.
I picked on up a couple of years ago for under $10 from a toy shop for my son (unfortunaetly its broken now) but if you can get one of those cheap that will give you a good engine designed to run on air pressure. |
I used to have 1 of them but that was a long time ago
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James
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| MooseMan wrote: | I live near a really big one (was that the one you went to?), so if you ever want anything I'll pick it up for you, easy!
This is the "steam engine" I was on about:
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£25! Wow 
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pauly
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| MooseMan wrote: | I live near a really big one (was that the one you went to?), so if you ever want anything I'll pick it up for you, easy!
This is the "steam engine" I was on about:
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can you get them on the internet
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Roundy
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maplin are great as ling as u no exactly what u want i made the mistake of asking a shop assistant about a motor they sell and looked at me like i had 3 eyes and had just stepped out of a spaceship!
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MamodFan
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A proper gas engine
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Atticman
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Is that one for sale for £25 MF
Very nice one.
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MamodFan
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| Atticman wrote: | Is that one for sale for £25 MF
Very nice one. |
I wish, I did miss one of these Westbury Master Pieces for £100 at an auto jumble once I did get to hold it though.
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alan2525
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You can buy Brass Tube where one slide is a sliding fit into the next size up, and metric brass rod that'll fit. If you check the sizes you should be able to make a nice smooth running little cylinder and piston.
Squires Models sell a lot of brass sections. I've bought the tube and rod from them in the past.
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