I'm in search of nylon twisted rope (for torsion engines experiments, twisted rope is considered better than braided for this purpose)
nylon is strong and elastic , probably the best sinew replacement
I couldn't find nylon twisted rope near me so I'm searching amazon and ebay.
searched for nylon twisted rope on ebay and I dont like the results : it's either unbranded nylon decorative rope with no max load rating or a good nylon rope for marine use from the US with huge shipping price, so I'll probably go with paracord...
Paracord 550 is said to be nylon core and nylon sheath.
I can find paracord in 0.56euro/meter in shops near me,
at ebay paracord 550 is sold @ 4.20euro/30m
4 times less.
0)Why?
on amazon there are similar prices but some paracords say polyester(!wtf am I buying?
)
https://www.amazon.de/XIAONAN-Hundeleine-Rei%C3%9Ffestem-Fallschirms-Klickversch...1)is the paracord on ebay real nylon paracord?(e.g. this one ?
https://www.ebay.com/itm/25-50-100FT-550-Paracord-Parachute-Cord-Lanyard-Mil-Spe...)
2)what is the normal price?
3)are there low qualities that should be avoided?
now on the construction stuff
4)how easy do you think it'll be to remove the core from 100ft(30m) paracord 550?
5)paracord is made from different kind of nylon? here(
https://www.machovec.com/rope/compare.htm#strength) it says 18-25% elongation at break while here (
https://en.wikipedia.org/wiki/Parachute_cord)it says Minimum elongation 30% please explain!
6)why do people use paracord for slings if it's so elastic? maybe it's strong enough to stretch a little but the stretch in % remains the same for a given load so longer slings will elongate significantly.(long paracord sling using pirouette and heavy stones would be the worst combo)