3D printed hybrid rocket v1

prusaprinters

<p>3D printed rocket with a paper wound BT-55 body tube. Designed in Fusion 360. PETG recommended. Tested in 1 launch, which was successfully recovered.</p><p><i><strong>I make no guarantees for its' safety and its' &nbsp;effectiveness. Only fly on calm days with little to no wind.</strong></i></p><figure class="media"><oembed url="https://www.youtube.com/watch?v=FiDctYJ1SiA"></oembed></figure><p>Instructions:</p><p>Print nose cone &amp; shoulder at 100% infill (less infill might work). Print rest at 15% to 20% infill.</p><p>Super glue shoulder and nose cone together. The shoulder and nose cone should be able to be inserted easily into the top of body and ejected from the body when the ejection charge detonates.&nbsp;</p><p>Super glue the centering rings onto the engine mount as shown in the section diagram with the bottom ring approximately 18 mm from the top of the threads. The bottom ring is not placed directly above the threads because I am designing a booster stage which will be inserted into the bottom. Booster will be released on Printables after testing.</p><p>Super glue the engine mount in the bottom of the fin body, but make sure the top of the threads are flush with the bottom of the fin body. DO NOT glue the nut to anything because it will be needed to be removable for mounting and unmounting engines.&nbsp;</p><p>Super glue fin body and body tube together by using the coupler as a connection piece.&nbsp;</p><p>See better explanations for things like how to insert wading/parachute and mounting the shock cord. The process should be the same as other model rockets.</p><figure class="image image_resized" style="width:19.31%;"><img src="https://media.printables.com/media/prints/226131/rich_content/415b7769-1f89-4336-82f7-aa840b88c95b/rocket-3d-print-hybrid-v1-v22a.png#%7B%22uuid%22%3A%22be2d6c6f-5421-48e9-a60e-788640b45d80%22%2C%22w%22%3A209%2C%22h%22%3A791%7D"></figure><p>Specs:&nbsp;</p><p>-BT-55 body tube&nbsp;</p><p>(https://www.amazon.com/Estes-BT-55-Body-Tube-Model/dp/B0069FELVY)</p><p>(https://estesrockets.com/product/003087-bt-55-body-tube/)</p><p>-15 inch parachute&nbsp;</p><p>-C6-5 engine/motor&nbsp;</p><p>-Solid nose cone&nbsp;</p><p>-Generic shock cord &amp; wadding</p>