Hopefully you’ve already seen part one of this series Passing Knots Introduction: A Rope Rescue and Rigging Primer You Must Know - Using The MPD (Part 1) where we showed how to pass a knot through a CMC MPD on both raise and lower. Now we’ll show knot passes through a Scarab (lower) and pulley and prusik (raise).
We want you to walk away with from this series with a basic THEORY of the knot pass. Once you understand the theory the hardware choices become secondary. Simply said… once you know the process, and the why for each step, every knot pass is essentially the same. Later on we’ll have all sorts of tips and tricks with improvised tools for knot passes.
For now we broke it into 4 basic blocks and these all apply to twin tension or dedicated belay systems. Just remember to stagger your knots so you don’t have to do simultaneous knot passes.
- Knot pass with an MPD on raise
- Knot pass with an MPD on a lower
- Knot pass with a rack style device on raise (We use the Conterra Scarab but it could be a brake bar rack or other device) Spoiler Alert! It’s just the same steps as the MPD!
- Knot pass on a raise through a traditional pulley and prusik
So what are these basic steps we apply to each one?
- Capture the load on the load side of whatever device the knot needs to pass. On a raise is with the knot BETWEEN your new progress capture and the device. (We’ve all made that mistake.)
- Move the knot to the other side of the device by either moving the rope or the device.
- Release the load back to the device.
Follow along with the videos and see the nuances but remember that we are always just executing the three steps above.
Enjoy the videos and shoot us any questions.
Knot Pass On A Raise... Non MPD Device.
Knot Pass On A Lower... Rack Device
Peace on your Days...
Rigging Lab Academy Team