Weather Balloon Project Tests 3D-Printed Enclosures and High-Resolution Imaging

Project Overview: UpLink

The UpLink project, a follow-up to the StratoSpore initiative, involved launching a weather balloon with specific experimental goals. The primary objectives were to evaluate the insulating properties of 3D-printed filaments (foaming vs. non-foaming PLA) for payload enclosures and to transmit high-resolution images via a radio link from the stratosphere.

Improvements from Previous Launches

Building on lessons from a previous ballooning project, StratoSpore, the UpLink payload incorporated several enhancements. These included implementing redundant tracking systems, using a more reliable GPS module, and developing more efficient data packing techniques for telemetry. The aim was to overcome limitations like the 18x10 pixel image resolution from the prior launch.

Testing Payload Insulation

Traditional high-altitude research often uses styrofoam boxes for payload enclosures due to their insulation and ease of manipulation. However, these have disadvantages such as predefined sizes, lack of flexibility for custom layouts, and higher cost compared to custom solutions. The UpLink project explored 3D-printed enclosures as an alternative, designed in Fusion360 to precisely fit components and optimize weight. The entire payload, including parachute, flight line, electronics, and enclosures, weighed 491 grams, utilizing a 350-gram Kaymont balloon.