The competition long fins are now complete and documented in the lab. The build page includes the layup, flex target, measured result, and the first in-water notes.
The first water trial was a good sign: the fins came out a bit soft and a little heavier than the training pair, but they still performed well in the water and landed on the target hydrodynamic resistance values.
Read the full build here: Competition Fins Project.
The modular neck weight project page is now live. It covers the collar build, the add-on weight modules, and where the supporting techniques live in the lab guide.
If you need the build steps, you can read the full guide here: Neck Weight Project.
We added a short guide to the measuring vacuum section that covers the trapped balloon gauge. The write-up walks through how to size the container, prep the airflow holes, and use the balloon expansion as a quick visual check that a bag has pulled down to around 80% of atmospheric pressure.
If you need a reference while setting up a bag, read the new page here: Trapped Balloon Vacuum Gauge.
The bike-spoke nose clip project page is now published in the lab guide. It documents the parts list, bending sequence, and finishing steps used in the current build.
Read the full guide here: Bike-Spoke Nose Clip Project.
We're starting a blog to share progress on DIY freediving gear and testing. Stay tuned for updates.
This space will host: