QRP Labs U4B Pico Balloon Frame and Cradle

The frame weighs 3,4 grams. Designed to be used with the QUP labs U4B and two PowerFilm 4.8V 50mA solar panels. Use the power, GPS and antenna wires through the mount to hold the U4B in place.

The cradle can be used for storage, transportation and testing. For testing use zip ties to attach the cradle to a non conductive pole and tape the dipole antenna above and below the U4B. I used a 10m telescoping pole. Run zip ties through the provided slots to secure the payload to the cradle otherwise the wind will blow it loose. A paper towel roll cut in half and blue tape is used to wind the antenna wire up.

Printed with PETG, 0.2 layer height, bump the infill and wall thickness to improve strength. I had a nice balance of flexibility and strength.