six blade windmill

thingiverse

<p>07/17/2021 better, updated, version found here: https://www.thingiverse.com/thing:4910913 <br> <p>03/02/2121 - windmill v2a mods <br>- Added alternative single fan base & nose piece that make use of a 1.5" 5/16 bolt as a replacement for the printed center shaft. The nose piece has a recess that accomodates a 5/16" bolt head, which can be glued in place. <br>The single fan base center line hole has been resized for the bolt to be threaded in during assembly. It also has a hex recess on the underside for placement of a 1" 5/16" bolt as the pivot point that gets inserted into the bearing on the spike mount. <br>Various spacers are included to help with fine tuning clearances during assembly. <br>A new spike mount is included with clearance for the bolt to extend past the bearing on the mount. <br> <p>12/25/2020 <br>- replaced "collars" files for better fitup, lengthening by 20% so that it isn't necessary to add shims cut from additional collar prints. <br>- replaced "stake mount" for better drainage to help avoid bearing rust <br>- added blades with "A" & "B" legends to help with double fan assemblies </p> <p> 9/26/2020 - added "tail fin" variation. Longer & heavier, it shifts the CG a bit towards the rear </p> <p> 10/3/2020 - added components for a double fan version. Hub B rotates opposite of hub A (hub A = original hub). Tail can be glued to "short fork" & attached to wide base through the rear hub. Short nose is alternative hemispherical nose piece. Other alternative parts also added. </p> <P> 10/4/2020 - replaced all files using more descriptive names </P> <p> A simple six blade windmill that uses 608 bearings for easy movement. The blade thickness and width taper toward the tip. The stake mount is intended for use with a 3/8" all-thread rod. The blade angle is set by the mounting holes on the hub at a 35 degree angle. An alternative build uses two hubs and twelve blades for a double fan build. There willl be one 608 bearing used for each hub and one for the stake mount</p> <p> It is recommended that you remove the grease that comes in the 608 bearings (wash out with mineral spirits) and use a light oil to reduce friction. </p> <p> Type A hub & blades are original orientation. Type B hub & blades will rotate opposite of type A. </p> https://youtu.be/mz7887Csf58 https://youtu.be/Bc7pa0VQmMc https://youtu.be/vO0Lo49FiGU Tinkercad https://www.tinkercad.com/things/7fAxqsANl8L https://www.tinkercad.com/things/hLlcpifnexI