solomon tekeste rapid prototyping & reverse engineering ethiopia threshing planter seed drill lecture agricultural machinery thresher tillage reaper harvester mechanization farm machinery reverse engineering tools for additive manufacturing ansys materials for am processes design for additive manufacturing (dfam) rapid prototyping techniques tools for reverse engineering (hardware & software coordinate measuring machine (cmm) post processing of am parts harvesting farm implement crop harvester harvesting machines row seeder tillage implements
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