Hey Juliano,
Each part can be duplicated, resized and reused as needed. At this point the size is in respect of the reference image.
It would normally be recommended to model to real world scale, If you can find I real life bugbot out in the wild, an you takes some measurements and share your findings?
Keep going with the course and all will be revealed.
To model to scale would make the viewport navigation a pain, being the objects so small. In this case is better to model at a bigger scale and avoid the hassle of crazy viewport behavior. But if you're referring to the fact that since bugs are so tiny, that would make one of those computer parts unrealistically small, don't think about that too much, just call it creative and artistic license.
Thanks, that was exactly what I asked. They would be too small, but the recommendation is to always go with the dimensions of what you are building.
But I guess that since the idea is to do some macro shots, in those shots the bugs will be large. If we would put them to scale in comparison to larger things, the tiny details wouldn't even show, so we wouldn't be modelling them.
Adrian, I would suppose a bug robot to be the size of a real life bug.