Meso to nano-scale systems technology is an extremely strong economic driver today. Market estimations predict large innovations in new products involving this technology within the next decade and more specifically, meso and micro-scale manipulation and assembly shows enormous potential in a vast range of manufacturing and biological applications. Thus, the Multi-Scale Robotics & Automation Lab (MSRAL) at Stevens Institute of Technology performs cutting-edge research on robotic and automation systems at various length scales: macro-scale (cm to m), meso-scale (~100's of um to a few mm's), micro-scale (10's of um to 100's of um), and nano-scale (nm). In this talk, I will discuss some recent MSRAL projects on: 1.) multi-scale robotic manipulation and assembly using micro-scale caging techniques; 2.) wireless mobile microrobots driven by external magnetic fields, and 3.) a novel, fully actuated, micro aerial vehicle design and associated control schemes for 3D manipulation tasks.