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First, Thanks for the reactions! I think the hardest part is the air tank and capacity. You need a big tank under high pressure, A diving tank is a option, but you"re riding with a high pressure bottle. (100-200 bar) The engine must be strong enough to drive the bike. You don't want a...

Hello, I'm a engineering student and i want to do a little research about air powered vehicles. I have searched already over the internet and found a lot. What kind of compressed air engine would you recommend? It is maybe the intension to build something if i have a good result at my...

Hallo, Is there someone who build a bigger stirling engine with a little power? I'm interested in the oppertuneties of a stirling engine. Maybe has someone build a more cilinder stirling? I have searched already on youtube and stuff. The most engines are a little unprofessional. Greets.

Hallo, I have a lathe and a lot of hand tools, But i don't have a milling machine. I'ts difficult to find plans for engines to make with this tools. Wo can help me with (free) engine plans that i can make without a milling machine. My lathe has almost all tools like 4 claw, clamping plate...

Hey! Im making ecxact the same engine! I think I need 8 hours to finish it, Maybe i can post some pictures to. Greetings.

Nederlands zie ik! zeer mooi tekenwerk. Ik ben benieuwd ook dit ook te realiseren is in een schaalmodel. dat zou wel zeer knap zijn. succes! groeten.

that's an inpressive machine! you can better don't fall into it :o

Looks beautifull, but, does it not run better when you make the connection pipes shorter? that water, can you explane what that does? Why does the pump pumps water? I have never seen that. greetings.

oke! thanks for the reactions, The tabels are very useful, I like the way from roberto, that is easy to use. thanks a lot! Thm:

Hello, I'm from Holland and we work here with mm (milimeter) I have got plans in inches and I try to calculate them in mm. In the instructions stands: drill the hole, ( 1/8 inch. ) Now I calculated: 1/8 = 12.5% ( 100: 8 x 1 ) so 12.5 % = 0.125. 0.125 x 1 inch (25.4 mm) = 3.175 mm is that...

thats a very great shop!

if you make some of these behind each other, can you than go higher with the "ball"? I mean: the ball rolls about the first rail, an than fall on an other rail, behind the first rail, and the trial starts again? And if you place example 5 of them behind each other, goes the ball than higher...

that's cool, is that not dangerous? are there free plans on the internet from scale guns like that? (not functional) greetings!

thanks for all fast reactions! Chris, is that grinding machine an own design? and for what do you use it? now I know the site von craftsmanship I can find a lot of information about things on google, I'm always looking for projects for the future, making a own machine seems interesting...

hello! I was asking myself of there is anybody who making machines for hobby? Because the most people have metalworking machines on this forum, Is there a hobby in making machines? or scale machines? I saw on google example homemade engraving machines and homemade motorized hacksaw machines...

That's impressive! How do you make the crackshaft? And where is did the crankshaft be supported? because the length off it, Greetings!

thats a beautifull engine! :bow: i like the style of the 2 cilinders with the carb's. nice work!

thanks for the usefull reactions! now I know that this is the way for make it without a milling machine! it's clearly, thanks for the reaktions! greetings.

hello, How can I make an internal 6 side in alluminium? I have make an sketch (in mm.) from the idea in autocad: (click for enlarge the picture and when the link is opened, click again on the picture) the point is, I have to make it without a milling machine! I can make it with a lathe, but...

thanks for the fast and enthousiast reactions:)! i'm just begon on the engine. It is the engine from this site: http://www.steves-workshop.co.uk/steammodels/simpleoscil/simpleoscil.htm I have to begin simple so i was thinking that this was a good engine for starting with this hobby! Started...