I would like a 3d solidwork model, of a 4-stroke twin-cylinder engine, fully functional. Ideally, I want the engine to exist commercially to apply a modification and test my invention, on a 125 motorcycle for example.
The goal is to only worry about the modification I want to make with a few custom-made parts, without having to create a whole engine of a hundred parts.
I found a lot of models on this site but I don't know if they are really functional, and I can't find motorcycle engines except harley davidsons that I could never pay for obviously, or airplane turbines.
The problems: - a 125 bi, it's very specific and not really rewarding to model so you may have a lot of trouble finding it; - fully functional: it's a lot of work to make *all* the parts and to constrain them.
Is bi imperative for your invention? You might have better time to buy the test bike (motorcycle or scooter?), to model only the parts in contact with your idea
A 125 twin cylinder is too specific, that's for sure... The advantage is that it costs less than a large engine and that it remains complex enough (several cylinders) to value the idea
I have a 125 twin honda, and the idea starts from there. It's true that I would have to "scan" the parts in contact to be able to have them in SolidWork.
But at my stage of progress in mastering the software it would be ridiculous. I have to find a 3D study model to break my head virtually already.
But a single-cylinder can do it too, it's just much less of a "feat". What really matters is that it is 4 strokes.
Stefbeno I could already go on the mono 125 posted that you linked me. It would be a motivating first step to get there. But for that I have to download Catia and master it..... In any case it will take me months of work so I may have to start with the right software directly
No need for Catia, in the file package there is Catia but also step. Use the step and you'll have a clean asm to work on.
For your invention, it's better to work on a simple engine (a mono) than to start right away on big architectures. In addition, in multi-cylinders, the different existing and possible architectures (number of cylinders, layout, timing) will make your task very difficult.