Donkey Calf Raise Attachment Challenge

grabcad

My donkey calf raise attachment design is simple and affordable, costing less than $300 even with potential customizations. It attaches easily to most smith machines using round collar sliding mechanisms by sliding the two donkey smith attachments onto each end of the barbell. These attachments remain perpendicular due to their contact points with the collars of the sliding mechanism. The back support assembly, comprised of two round steel tubes and a plate steel weldment, securely locks into place when paired with spring-loaded pull pins. This innovative design ensures safe and effective donkey calf raises for users. Customization is possible if needed, as each donkey smith attachment only requires four pieces of steel and two mandrel bends. Viewing stress analysis pictures further demonstrates the stability and effectiveness of this cost-effective calf raise solution.