Minimal Rocket

thingiverse

A spin-off of the Estes Swift 220 design utilizes an 18mm engine coupled with a fin-integrated launch lug for easy transport and setup. Although easy to misplace on larger motors, bright colors can increase chances of recovery. Refer to assembly instructions and flight parameters in printing details for best results. Improved stability and fin size are noticeable improvements over the initial prototype, despite its successful test flights with a C6-5 motor. Strongly avoid flying this version with composite engines as intense vibrations can cause fins to detach. To optimize performance, use only black powder motors or their equivalent counterparts. Standard 3D printing settings can be used, with raft settings adjusted accordingly: enabled for stability, resolution set at 0.2mm, and infill at 100% or 20%. Additional assembly guidance is required due to a design flaw where rocket pieces can easily separate if shells are set too high (more than two). Key takeaways include securing the printed nose to the main body using adhesives or welding it in place after printing. Ensure engines secure free and tumble-recovery principles keep them safely intact even in unexpected separation. For best performance, infill at 100% on rocket bodies is recommended; lower settings are also feasible but might affect stability, with an optimum range between 40-50%. Incorporating rafts benefits recovery due to extra protection from breakage or damage during handling. Flat-print nose areas help it sit securely on the printer tray without complications or risks. This design builds upon previous work originally done by its author; a new iteration that enhances engine stability is made possible thanks to coding contributions and testing from Jay.