This is such an amazing creation. I’m not good with lxf so worked extra hard and think managd to get 80% of the total design, but not the finesse particularly the internal parts. In any case, I needed to build it twice to get an acceptable outcome. On both occasions, 4 Lego L motors the first time and 2 buggy motors rear only this 2nd time, power cuts off after short runs. 2 buwizz on each model, both same problem, using IOS Buwizz app (digger) for controlling the 2 Buwizz units. Keen to continue wit Buwizz app if possible. Any advice/help you or anyone can offer? Thanks very much!