| T O P I C R E V I E W |
| cirvin |
Posted - Sep 04 2003 : 8:31:17 PM
does anybody no any sites where people have built their own engines?
a most awsome page for animated gifs of engines. a must in anybodys favorites http://www.keveney.com/Engines.html
Edited by - cirvin on Sep 05 2003 1:51:07 PM |
| 15 L A T E S T R E P L I E S (Newest First) |
| cirvin |
Posted - Nov 23 2003 : 12:27:18 AM
well, if i can get my hands on a lathe, ill be build in gas engines for sure. right now ihave to settl for electronics.
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| Alien |
Posted - Nov 22 2003 : 11:31:54 PM
Lol, dude say hi to jesus for me if you do it wrong... heh...
Its just Legos... Right..
-----------------------------
Andrew
13/m/Canada
Edited by - Alien on Nov 22 2003 11:33:28 PM |
| cirvin |
Posted - Oct 01 2003 : 8:04:11 PM
heheh eh. lgo ngines http://www.dansworkshop.com/Lego%20Steam%20Engines.shtml
i am going to buld thm all!!
at last!!! |
| cirvin |
Posted - Sep 17 2003 : 5:25:31 PM
inatall a pressure relief valve just in case
next stop: nobel prize winner! |
| BEatonNo1 |
Posted - Sep 17 2003 : 2:59:36 PM
yeah and i feel confident....i usually use it around 50 psi...
its got maybe 10 defects out of all of the welds and most of them are on the tubes that run vertically through the boiler. therefore if there is a break in the weld it will be all inward.
My dad is a welding engineer...he just tells me to keep it under 100 psi
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| da-g-dog |
Posted - Sep 17 2003 : 2:34:51 PM
quote:
Yeah I know what slag holes are, but actually I think there more like pin holes....however you would just have to see the welds, there like an inch wide. plus I dont think that the boiler is put under enough stress to cause the welds to crack and if they did crack theres shurely not enough pressure to cause them to rupture.
Dude, i took a welding class for two years, and Aaron is right. Slag holes are a major welding defect. Slag is there in the first place to protect the weld metal and keep it free from impurities while it cools. When the machine isnt set right, slag gets into the weld metal and severely weakens the weld, no matter how big the bead is. Even if they arent slag holes, and are pin holes like you say, they are just as bad. they make the weld bead not solid and makes it very easy to break. so, seriously, don't use the boiler. find someone who knows how to weld really well and get a new one made.
hike master kyle |
| Aaron Cake |
Posted - Sep 17 2003 : 09:34:28 AM
As they say, "it's your neck". If you feel confident in this boiler, then use it. But I've seen a steam explosion at sub 100 PSI pressures (it was a furnace) and wouldn't tough an uncertified boiler with a 100 foot poll. 
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| BEatonNo1 |
Posted - Sep 16 2003 : 2:00:35 PM
Yeah I know what slag holes are, but actually I think there more like pin holes....however you would just have to see the welds, there like an inch wide. plus I dont think that the boiler is put under enough stress to cause the welds to crack and if they did crack theres shurely not enough pressure to cause them to rupture.
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| Aaron Cake |
Posted - Sep 16 2003 : 07:40:34 AM
Slag holes mean that there is slag within the weld. This weakens it considerably.
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| BEatonNo1 |
Posted - Sep 15 2003 : 7:54:37 PM
naw im shure those welds are going to hold long after the metal ruptures
there pretty thick
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| cirvin |
Posted - Sep 15 2003 : 4:28:38 PM
this project is on the back burner untill after october. all my time and rescorces are being redirected to the halloween haunt at my frends house
i can put a bunch of copper tubing in a pipe and blast a flame thu there. that means i can have less water to carry, and to heat up. then i can carry more fuel
next stop: nobel prize winner! |
| Aaron Cake |
Posted - Sep 15 2003 : 09:38:47 AM
If the welds have slag holes, then it is definitly not safe. Glad you're nowhere near me. 
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| BEatonNo1 |
Posted - Sep 11 2003 : 9:52:24 PM
well the boiler I made holds around 2 liters of water, but runs only an inch or so full, plus it has a very inneficent design. so its really only for bursts.
As for the boiler plans I made, I'll see if i can find them. I cant remember if I made them on Auto Cad or not. it was desigend similar to a locomotives, and was ment to run a generator made from an alternator and a turbocharger. However the materials are pretty hard to find...My dad works in the steel busness so we have a plethera of materials around.
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| cirvin |
Posted - Sep 11 2003 : 7:59:57 PM
as i said, it accelerates off the flywheel momentum. where would i get those plans.
a soup can would blow real easy, but for a model it would be great
9/11. god bless America
Edited by - cirvin on Sep 11 2003 8:39:29 PM |
| BEatonNo1 |
Posted - Sep 11 2003 : 7:39:33 PM
well the one i built weighs somewhere around 35-40 lbs or so when full...its not that heavy, but it doesnt provide enough steam for a car...however I have lots of plans and materials for one which could...but no reason to build them.
As for the leaks, there from slag holes, and its save up to 100psi
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