Single Pivot Bat Wing Pt1: Framework and Pulley System

These frameworks are made from laser cut sheet aluminum, but they can be made from many materials! I ramble on about different design considerations. So long as you pay attention to those and address them in your design you should be able to come up with other ways to make a pulley system of your own! Sheet metal from IMS, laser cut by Southwest Waterjet and Laser in Phoenix AZ (you will need to source elseware unless you live in Phoenix, sorry) Paracord, brass strip, nuts, bolts and wheels all from Ace Hardware. For orders please see my website at: Or message me with custom requests at: thecrookedfeather@ For more tutorials, full parts lists, framework dimensions, etc. please visit my patreon: