Originally I Started with The Cloneout Mini H Quad http://www.thingiverse.com/thing:347202 But wanted something lower profile with a battery that hung low. This Quad has 8mm & 10mm spacers and arms to allow more room for your speed controls. I have also included Motor mounts for 2mm and 3mm screws. all feedback welcome.... Here is a link to the original project http://untestedprototype.com/2013/09/cloneout-mini-h-quad-plans/ UPDATE Just test flew with a 2200 battery (Max Size) with no FPV equipment and flew great. nice and balanced ( need to use battery placement to balance out). Also added thicker trainer arms since I am currently not the best pilot :) http://youtu.be/LSESg8saZx4 http://youtu.be/zfJn_hy5SnY Made up some 2mm spacers if you want to raise the deck for some more clearance for speed controls STACK EM' UP! Print the top deck at 25% fill arms at 80% lower deck I'm trying 50% and print with fill for the battery straps and clear out with 1/8 drill bit. The landing gear I have 50% for now but will be experimenting with it. the landing gear print on its side with no support. I have included a short upper deck and a long upper deck for FPV equipment (LongBoard). HARDWARE 12 - M3 x 25mm 4 - M3 x 30mm shortened to 26-27mm so not to protrude. whatever hardware is required for your motors.