How do I cut a rope?
Rap athletic tape tightly around the rope three times where you want to cut it.
While sitting down, use your feet to tension a bight of rope over your lap. Alternatively, simply have a friend hold the rope taught.
Take a sharp knife and slice through the rope cleanly. It's okay to use a sawing motion if necessary.
Using a flame or a hot air gun, heat the freshly cut end of the rope just enough for the fibers to melt together.
Continue to hold the end near the flame for a few seconds more so that heat conducts into the core and fuses with the sheath. You don't have to melt very much — just a few millimeters up the rope is sufficient.
Remove the tape.