Customisable Modular Model Rocket

thingiverse

This is an elementary, budget-friendly and adaptable modular model rocket design in OpenSCAD. Using Customizer, you can: Select a rocket size (for instance, mini, standard or C), Choose how many fins and what size are needed, Vary the height of the various sections (finCan, body, nose cone, etc.), Alter the type of nose cone desired, Add an optional payload section, Set the guide rod size required, Tweak the tolerances for your printer and Ensure to customize and export the various parts, then proceed with printing. The rockets are quite durable, even without a recovery system in place, but the heat from the rocket engines mean the finCan will only last a few flights (if using PLA). Nonetheless, this is an incredibly swift and cost-effective way to experiment with different model rocket designs and enjoy fun activities with kids - particularly as they can design their own rockets. It's recommended to tweak the Perimeter value to generate 2 perimeters in your slicer (approximately around 1mm) - one perimeter just melts too quickly. Here is a video of some of these flights: we were running late to the field, so didn't have time to add drogues/parachutes, but they are highly recommended. The link to the video is as follows: https://www.youtube.com/watch?v=0j5vvKFOFlI&feature=youtu.be As for the OpenSCAD model, it serves as a solid starting point if you want to design your own sections for the rocket or add different nose cones, fin types, etc. Latest updates Include support for swept back fins and automatic print support for the rocket body Enhance coupling joints (lighter, sprung fit) Allow for twisted fins that rotate the rocket in flight for enhanced stability Provide option of a shockcord fixing at the base of the payload coupling Add Haack nose cone type with options for LV, LD or any value between them Permit offset fin tips vertically Include support for guide rails (rail buttons) as well as guide rods Offer option to generate complete rocket as single STL without internal couplers Introduce fix for STL generation bug for nose cone Introduce additional shapes for fins and nose cones Introduce option to generate complete rocket as a single STL. Instructions 1. Customise, download and print the various parts for your model - using layers of .3mm thickness is suitable. It's advisable to avoid using brim while printing as it's cumbersome to remove without breaking thin-walled parts. 2. Fit recovery chute/drogue (if desired) along with associated wadding. 3. Install a compatible rocket engine - begin with low powered models (such as Estes A or B) - you may require some tape around the engine to achieve snug fit. 4. Install igniter, place on launch stand, start countdown and ignite!