Topic Elastic lines
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| dave santos Apr 14, 2020, 6:46 PM (15 hours ago) "Perfect Bungee" of polyurethane Long consistent elastic cycle life by low-mass polymers is going to be crucial to passive control AWE. Conventional rubber can be great, but only seems to hold up a few years of use at most. Here is a claim for "Lifetime" service of polyurethane elastomer- The Perfect Bungee Lasts A Lifetime My skateboard trucks are urethane, and they both hold up, but do slowly wear out, under great stress. Here's a nice head-to-head comparison- Rubber vs Polyurethane Suspension Bushings | Suspension.com ============ Likely our best family of kite elastomer, but which is best by mass-to-elastic-performance? wiki/Thermoplastic_elastomer Those who knew in 2016- ========================= Thera Gold Bands seems to be the stuff, and the trick is to cut it as wide as needed AND as long, for precise force profile. A big kite farm would probably have big rolls to draw from- rubber theraband gold bands | eBay |
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