This week I was finally able to assemble a paperbot model and bypass the scaling issues. The scaling issues themselves have not been solved but by measuring the paperbot that was previously made I was able to scale the printout manually on Silhouette Studio.
I was also able to get my old components to work. I run into some errors when running my old builder file because of some changes in the RoCo code but after some debugging I was able to fix it and the arduino code compiles without any problems. I am somewhat late on my schedule bt the plan is still the same. I will try to find a suitable way to mount the phone on top of the two wheeled paperbot and start working on the Android app.