How to tie an autoblock. and learn how to create an autoblock using a hollow block. The autoblock is often made using either a factory-made or temporary loop which grips in either direction and can slide freely over the rope during a controlled descent. com The Autoblock Knot provides reliable gripping for safety backup when tied with a properly sized cord, holding firm under moderate loads during rappelling or ascending. Then, wrap the Prusik loop three times around the rope to finish the knot. Lock the carabiner to ensure that the cord doesn’t come undone. How to tie the Autoblock Knot. Learn how to tie an Autoblock in this video. Dec 10, 2013 · Attach the autobloc cord to the leg loop of your harness. The knot is tied on the rope below the rappel device and then attached to the climber’s harness through a carabiner on a leg loop or the belay loop. MMG will demonstrate how to tie a Prusik, Klemheist and Autoblock. Jul 10, 2025 · How to Tie the Prusik Knot To tie the Prusik Knot, tie the Girth Hitch around the main line using the Prusik loop. Let’s break it down. Sep 6, 2016 · The Autoblock Knot is a quick, easy-to-tie friction hitch that can grip in either direction. Remember, you have to think about this at the beginning because you have to tie the knots BEFORE you throw the rope over the ledge. Watch our free video tutorial on how to tie the Autoblock Friction Hitch, along with other instructional videos on anchor building, knot tying, and other rock climbing skills. AMGA Instructor Team Member Patrick Ormond explains how to tie the auto-block, prusik and Klemheist friction hitches. This step-by-step tutoria This video is part of Midwest Mountain Guides rock climbing informational series. This can be valuable in a rescue if it is necessary to release the knot while still loaded. Do this via a carabiner (as pictured), or by connecting the cord directly to your leg loop with a girth hitch. It’s most commonly used to back up rappels. May 15, 2025 · The Autoblock is a friction knot used as a backup when abseiling. Join StoneMan Climbing Co. The Autoblock Knot (French Prusik Knot, or Machard Tresse Knot) employs a carabiner to join the two ends of the loop. See full list on liveabout. The best part? It grips the rope when loaded, and unlike other friction hitches, it can be released while still under load. Jun 27, 2019 · AMGA Certified Rock guide Elaina Arenz shares how to tie and when to use Autoblock, Kelmhiest, and Prusik friction hitches. It can be loaded bi-directionally and is May 8, 2018 · Autoblock Knot The autoblock knot, also called a French Prusik knot, is an easy-to-tie and versatile friction knot that is used as a safety back-up knot on a rappel rope. For more How to Tie a Knot at the End of your Rappel Ropes to Close the System: Use a triple barrel knot and tie one at the end of the rope you are rappelling on. Like all friction hitches, it grips the rope when weighted and slides freely when unweighted. It is an easy knot that won’t slip through a rappel device. Understand the process of tying an autoblock, a friction hitch commonly used for rappel backup. . The autoblock locks in both directions, but the double fisherman's knot tends to wrap itself into the prusik when the direction is switched, making it much less effective. THE AUTOBLOCK KNOT is a quick and easy-to-tie friction hitch commonly used to back up rappels. Apr 14, 2013 · How to tie an autoblock hitch for mountaineering with RMI Expeditions. Master the Autoblock Knot: A Must-Know for Climbers • Learn how to tie the Autoblock Knot, an indispensable technique for climbers. Make sure the rope is dressed properly and there is no crossing over. Jun 21, 2024 · Clip both ends of the autoblock hitch cord into the locking carabiner on the harness leg loop. This is perhaps the easiest friction hitch to create and release. This video is part of a free educational series by Peak Innova Oct 27, 2017 · To tie an Autoblock Hitch you will need a prusik loop and a locking carabiner. If you go the girth hitch route, you'll need a longer cord than you would otherwise.