Bergen STEM Amateur Radio High Altitude Balloon (ARHAB)

We discussed how we are going to mount the new petri dish modules onto the payload. Instead of using the polycarbonate or aluminum rods, we are looking into using carbon fiber tubes, which on paper should reduce the weight of the payload while providing stronger support for the modules. https://www.mcmaster.com/2153T86 Additionally, we are considering reinforcing the modules in a similar fashion to that of a suspension bridge. Our running idea is that a loop of string, twine, nylon, or some other strong cord will run across both sides of the box and through holes in the corners of the modules. The cord may be knotted around the holes in the module to keep it from sliding out of place. This will provide result in trusses that may help reduce the likelihood of the modules bending downwards or upwards. We also regained our circuit board and are reviewing its programming. We also found the data sheets of each module for implementation.

Comments on Petri Model: Dish compartment height right now is 20 mm, which needs to be increased to at least ~20.5 mm because the dish itself is 20 mm. Add hole for the wire of the servo to travel under the Base/Holder and into the box Possible sources of weight reduction: Smaller, lighter batteries? (Old ones are just so heavy, maybe we can find lighter ones.) Carbon Fiber? - only circular rods are available but this can be adjusted in the model.