We've just added an affordable 4-axis filament winder to our line up of desktop filament winders at Xwinder.com . You can see the 4-axis model 4X-23 operating near the end of this video. Many lightweight and strong model applications for fixed and rotary wing models. We are building a compressed air energy storage fuselage with 3 kilowatt hour capacity (thats 40x 5000 mAh at 14.8v 4S). The Video is here if it does not load in this blog.