I've been unable to find plans for a Volkswagen or Porsche boxer engine so I am going to attempt to design my own. This is likely going to be a long journey if I can even get it done. I have access to some torn down engines through a local repair shop. I did some preliminary measurements and lots of photos. I have also been researching what info there is on the web. I have drawn up a scaled down version of the crankshaft. Right now it is a direct 1/4 scale of what I measured. I did not include the gearing on the rear of the crank for the cam or distributor nor did I include the bolt holes for the flywheel. I'll add them later. This is my first attempt at a design and I need some help from you guys with all the experience. Things start to get real small when you scale them down and I expect it is not appropriate to keep everything exactly to scale for structural reasons. The crank webs wind up .090 thick which seems pretty flimsy to me but there is a moderate amount of overlap between the main and rod journals. Do you think this design would work and be constructable? Should I increase the web thickness and decrease the journals? Any input would be appreciated.