Recent content by Leucetius

That's a nice information! I know HK from my days I was flying several Helicopter and Airplanes, main source of LiPos in this time and scene :)

Thanks for your answers. We think the lost spark method is interesting as such but he won't use it. My friend will buy a) one RC-i 400 from Power Spark and b) two RCexl Twin cylinder from RCXp when the engine is ready for testing - I will post results and videos. Greetings and happy weekend Kevin

The engine at stake can be seen at the attached pictures. It's from the magazin 'Model Engineer' and my friend is in the planning phase of making it. I've done the CAD files for him and now he wants to change the engine from it's original glow plug system to spark ignited. As you can see on the...

Good evening guys. A friend of mine and I have a question regarding CDI on multi cylinder engines. More exactly if it is possible to realize this (in our world) without the usage of a distributor to direct the discharge of the coil to the correct spark plug? Greeting from Germany Kevin

From the look of it, I'd guess 0.275 depth. The wall of the cylinder head has the same thickness as the fins (measured by eyeball). that means bore + 2 x wall thickness = ground of fins = 0.7 + 2*0.05 = 0.8. The groove's depth is (outer diameter - ground of fins) / 2 = (1.35 - 0.8) / 2 = 0.275...

Good day to you sir! I'd love to see more about your projects - the sterling looks good. (Grüße aus München)

Full-scale engine construction rules ask for a compression height (distance from center wrist pin to top of piston) of 36% to 45% of bore diameter. For skirt length (center wrist pin to bottom of piston) 40% to 50% of bore diameter are asked. Shorter skirt length are for racing engines, as...

I think so. The picture I meant was this: (posted by yourself). You can see that the holes overlap the lowest ring groove other than emerge fully in it. (sorry for bad english) Leuc

Which is the same method used in the pictured pistons, if I'm not mistaken. Inventor 2013 is a neat piece of software indeed, but I'm most sure, that in 2012/11 it was possible to place a hole on a round surface ... this is gone. :(

I have a question related to copyright. A friend of mine sent me a 3D model (3D Studio Max) of the Morton M5. It is a model engine one, dimensions in inch, bore x stroke 0.625 x 0.6in. I'm in the process of building it as CAD in Inventor 2013 and I'm trying to change it a little bit, so that...

After one very nice PM with question about the rest of the drawings, I realized that a recent hardware crash and the change of system that followed, has claimed another victim: My 1 cylinder was thrown back to a state where I didn't even had rockers modelled - let alone the camshaft and gear...

Attached the wrong drawing zip-file ???

Moinmoin (I'm from germany ;D ) as one might remember from my introduction I am a mechanical engineering student and I'm about to graduate as B.Eng in 3 months. During my studies I've put all I learned into my own IC engine design and this is finalising too. Sadly I've no chip making experience...

One thing though you already buyed: On the pictures all plates are in german. Don't know about the standards in down under but it may be a problem (metric screws etc.). And the manufacturer is stated as a chinese one, so you may or may not get the lathe pictured. Just my 2ct - i'm looking...

That one in 1920x1080 but I handed the rights over to steve so he may post it or not ;) Beside that numerous renderings of other engines, I've modeled. By the way: I'm modeling in Inventor and render in 3DSMax Example: