Hi,
unfortunately I haven't yet received any response to my other emails, so I don't know if there is a potential mentor for any of them or if they are suitable for a SoC project at all.
In any case, I have written up some thoughts regarding the facilitation of geometric constructions/tech drawing in Inkscape. They can be found here:
http://www.rzuser.uni-heidelberg.de/~malbert/tech_drawing/
It's a draft and not complete yet (but all I could manage alongside studying for my graduation exam). I would very much appreciate any input/comments/suggestions/criticism. Would any of the potential mentors be willing to supervise such a project?
Thank you very much in advance for any feedback, Max
P.S.: I'd still love to elaborate on my 3D-related ideas but I feel they are much less straightforward to implement so I'd need advice from more experienced developers regarding feasibility/desirability and on which things to concentrate before going into more detail.