I have been working on plans for a diy version of a Flywheel for resistance training.I intend to use a rope instead of a nylon strap when connecting it like in this video clip.I was trying to figure out what the name would be for the part that automatically retracts it. https://youtu.be/sqqRn_0wPak?t=89Also I would like to know what the correct term for the clamp he uses to lock and unlock the strap if possible as well. https://youtu.be/sqqRn_0wPak?t=76(Sorry if they are stupid questions, I am not good with DIY stuff, so I got plans from the internet and have been working on this project but don't know what I need for those 2 components). via /r/DIY http://bit.ly/2IJRPa5
