Cargo hook with quick release

prusaprinters

This hook releases its load if you turn the little lever on the side. The force you need for this is independent from the load wight. If you attach a smaller rope to it, you can trigger it from a remote position or from the ground. Depending on your use caseIt is designed for continous loading and releasing wights of 15kgYou can attach the lever in two ways. By this you can choose if the hook stays in place after releasing the load or if it has to come down with it.ASSEMBLY:You need glue or 4xM3 bolts for assembly. Choose a lenght from 15-18mm. If you have no screws at hand just ad some glue to the conecting faces. For this matter youll also find a version without screw holes for download. That one is intended to be assembled with glue only1.Guide the Axle trough Body_A  2. Fit the Hook on its pivot point on Body_A 3. Turn Axle 90° anti clock wise (left) 4. Cover Body_A with Body_B 5. VARIANT A: If you want the hook to come with the load after releasing, fit the leaver facing towards mooring eye 6. VARIANT B: If the hook has to stay where it is after releasing, fit the lever facing “away” from the hook. 7. Insert and tighten bolts. Begin with bolt troug lever and axle.NOTE: Did some testing, regarding the maximum load. I left it hanging wighted with some bricks. The bricks allone clocked in with around 50kg and after 15min hanging time, the hook showed no signs of fatique. BUT after triggering, the violent release of tension cracked the hooks main body. Amazingly the trigger mechanism and the hook where still in pristine condition. Like you can see, i didnt go crazy with infill and perimeters. Additionally it was printed just out of PLA. you might get even bigger strenght with more perimeters or other materials WARNING:This hook is designed with mooring and releasing some light wight gear in mind. DO NOT use it for climbing or in cases where human well beeing is in jeopardy if the hook is used (or any well beeing for that matter) CHANGE LOG 28.01.2023:Did a rework of the hook and also Body_A and Body_B. The little round part on the hooks back, indicating if it has engaged correctly, is now gone. This might help reducing stress on the body parts, occuring by releasing heavy loads and the hook rotating violently around. The assembly and how to use hasnt changed at all. Just use the “_Improved” version The _Improved version shown in the picture is also a little more easy on the printer.Please use Body_A_Improved, Body_B_Improved and Hook_Improved always together. They can not be mixed with the older versions of the Body_A,B and Hook.