We have had our share of drive train issues in the past couple years, and intend to resolve them, without a huge amount of weight increase for reliability. The modules will provide the ability to quick-swap modules, damaged, inoperable or otherwise, in a very, very short amount of time. They also provide the option of live-axles, which will alleviate some of our machining headaches (Bolt circles and the like). For us, broaching is easier than fighting with many custom bolt circles. We use an elevator wheel, and in order to interface it with our drivetrain, we need a custom hub and sprockets. Live axle allows us to standardize components.
As far as the frame goes- the kitbot frame is simply an option. Ideally, we’ll weld our own out of box tubing, but should the need arise, we are capable of using the provided frame. The standoffs are just another design beef-up, and we intended to use fairly large sprockets (1.5") to begin with- so the chain run will not be affected.
As far as the lip idea goes, I like it. However, when we give the drawings to our sponsor, it’s often a courtesy, (and a time factor) to simply have them free up one machine for a few minutes to cut a part- reducing the number of operations they must complete. I do see the strength benefit possible however, and we definitely will look into it.
As a rule in the design, we were looking for ease of removal, robustness (very important), and perhaps most of all, aesthetics. But thanks for the constructive criticism, and keep it coming! It helps to have another view to make it better. All the CAD has been done by Cody thus far though… Hopefully we get done soon for his sake!
EDIT- Also, the standoffs won’t be nearly as bulky in the final product- we’re using an old version of the bolt plate, and twice the number.