We have pretty much discussed the design side in whatever detail is crucial, towards actually building a model chalopede.
At the Living Academy in Pune, a model of the Jansen chalopede is presently under construction. It is being made of plywood strips, easily available there.
This post, on Azad Maidan, points to practical reasons why the Jansen, which is excellent for Strandbeests, is not the only choice for a Chalopede. Primarily, a controlled powered vehicle needs to have a manageable transmission, which anyone who has ridden or driven a bicycle or car, is familiar with, in terms of the gearbox.
This, obviously, needs to be thought out. My own contribution here is to fashion out a simple hand-operated continuously variable transmission, using a combination of rope/wire and a joystick that drives a simple linkage. The wire or rope is looped around the linkage so that its length, and therefore the amount the horizontal movement of the leg manages in each step, is changed accordingly. There may well be better designs, but the key is to ensure that construction can be managed with a minimum input of industry-dependent parts, and, indeed, of electricity. My drawing skills are not up to the task of providing a digital sketch, but if anyone wants to help do that, most welcome to discuss what is needed, either here or offline.
The post on Azad Maidan is about more than the details of design, it is also about moving forward with a transformational approach to village industry, and to urban design of village areas, freeing them up from dependence upon high quality roads, a stumbling block that locks up scarce capital, that is in turn better allocated to direct and sustainable benefits in terms of learning and using knowledge.