With a friend, we've made a mini quad-copter with clips for assembling. It's not necessary to glu it, just "clik" it. I put HK multistar 1704-1900 on it and a multiwii FC, the mobius and another litle cam for FPV with video transmiter. The weight is just a litle bit more than 500grs with a 1300 mah 3S. Post it if you make one ! The design is inspired from the Spidex Micro from Quaternium. an alternative one on video https://www.youtube.com/watch?v=oc_c7b2pTEMPrinted with 40% filling seems to be rigid enough for fly. The frame is just good to print on a 200 x 200 bed.