Gravity Seat Hold Down for FeelFree Kayaks

The FeelFree Gravity seat is excellent.  However, when pedaling the Overdrive, the seat straps are not enough to keep the seat base held down.  They sell a cam lock to accomplish this, but it's never in stock and kind of expensive.  I used a piece of T track and some paracord to make this work.  You can loosen the knobs to adjust height, then retighten to make it hold down better. 

Instructions:  Mount T-Track to the floor, using your preferred seat position for the rear location.  Tie a small stopper knot in one end of a piece of paracord, feed it up through the countersink hole and over the seat bar, then down the next hole and up the next.  Put either a stopper lock (I used I used this file: https://makerworld.com/en/models/804463-threaded-cord-lock#profileId-744858) or tie a knot once you get it in position.  I kept my cord short, but it can be any length really.  

I used PETG for the base and ABS for the lock.  I used 100% infill and 6 walls, it's pretty sturdy.  ¼" bolts fit snuggly in the end holes. 

Materials needed:

4mm Paracord minimum around 6", but can be longer 

Paracord lock of some kind

T-Track (I used a 12" Yakattack)

Knobs/bolts for T-Track (I'm using Railblaza ¼" 20 TPI)