This is sets of opposing and overlapping cylinders with simple internal parts that pass each other inside the counter rotating cylinders. The parts inside will never touch. They will be perpendicular to the cylinders in a row rather than around the circumference. They will be held on either end by a plate or spokes on a common axle but riding on independent bearings. The cylinders will have various internal distances apart from each other determined by the parts passing by each other. I need three different sets with various distances and lengths. Once the first one is made the other two are just tweaks.
17 freelancers are bidding on average $172 for this job
specialized in 3D mechanical design with over 5 years of field mechanical experience. anyway for a successful job, i'll need more information about your project or maybe some hand drafts...