Use the following table as a rule of thumb to determine the size of your cable according to it's length and the rider's weight you want to put on the zipline. Then, choose the turnbuckle and the amount of wire clips accordingly.
|Max Rider Weight
|up to 100'
By Jonathan Green - May 2010
It is easy to get lost in all the zipline designs and designers offered online. Most of zipline companies have their own specialties and some offer a wider range of zipline designs and alternative products. In this case, the zipline do not seems to be a straight line but a maze of twists and turns. The key asset of all major zipline design company is the professional zipline...
Why do I need a brake
Unless you have designed your zipline to be very slow, thus taking away the fun of it, you need a zipline brake.
A short zipline, and especially in your backyard, should have more than 3-5% slope. Meaning that for every 100 feet, not more than 3-5 feet of elevation loss is needed.
How to build my bungee brake
Most of the time, a bungee brake is enough but it has the disadvantage of sling shot the rider back to the bottom part of the catenary, the belly if you may.
To avoid this...