DIY Carbon Fiber Freediving Fins by Vacuum Infusion Build

I've always been interested in building my own gear and composites are one area that I had very little experience with. So I took the time to research the Vacuum Infusion process for Carbon Fiber so take a look at my first go! Of course if you can think of some improvements please comment below. If you want any more description on the process also comment.





Material Sources: (no affiliations)
https://compositeenvisions.com
Reinforcements:
Carbon Fiber Fabric UNI Directional Intermediate Modulus 12k 5.7oz/193gsm Hexcel IM2
Hexcel HiMax Carbon Fiber Fabric Biaxial +45/-45 Degree 12k 2.95oz/100gsm T700 Fiber
Carbon Fiber Fabric 2x2 Twill Intermediate Modulus 6k 205gsm/6oz Hexcel IM7
Resin:
RDR-3121 RDH-9386-99 High Impact/High Temp Vacuum Infusion Epoxy 3:1 1.33 Gallon Kit 325° F - 1 hour Pot Life - Kit Size 1.33 Gallon
Consumables:
Airtech AT200Y Tacky Tape (yellow gum tape)
Airtech Wrightlon® WL5400 Nylon Vacuum Bagging Film 60" 0.002" (clear film)
Airtech Bleeder Lease B Coated Peel Ply (green material)
Airtech Resinflow 60 Resin Flow 60" (red mesh material)

local glass shop
1/4" tempered glass
amazon for cheap vacuum stuff
TV Box Cardboard
"Milkman Space Heater" with my own temp control mod SSR with control unit





Processes not shown:
R&D - look at what's out there on YouTube and get an idea for the process
https://www.easycomposites.co.uk had the best tutorials
hardest part was getting a feel for the right flex on the blade.
Ended up modeling a few builds that I saw on YouTube and modeling them on ANSYS ACP PRE/POST student addition (another big learning curve) and coming up with a 20N force at a 90 degree bend metric that was the target for a mid flex medium stiffness blade at 29 degree angle. I can make a video on that whole process if you would like. May do some fluid modeling of a flexible foil on ANSYS if I get really ambitious.