GrabCAD 模型信息
Donkey Calf Raise Attachment Challenge · 模型 150899
https://grabcad.com/challenges/donkey-calf-raise-attachment-challenge My donkey calf raise design attaches to the smith machine simply by sliding one donkey smith attachment onto each end of the barbell, and they are held in place via the points at which they contact the collars of the smith machines sliding mechanism. The points at which the donkey smith attachments contact the collars of the sliding mechanism, are the reason why my donkey calf raise attachment will remain perpendicular to the sliding mechanism rather than rotating freely about the barbell. This is easier to understand by viewing the stress analysis pictures. When the back support assembly is slid onto the two donkey smith attachments, and the spring loaded pull pins are released into their corresponding holes that the user has selected to suit his needs, everything is locked firmly into place. Now Donkey Calf Raises can be performed in a safe and effective manner. This donkey calf raise assembly design will suit the majority of smith machines that utilise a round collar sliding mechanism. There are many variations of the smith machine on the market, with a variety of different sliding mechanisms, located on varying areas of the machines. In such cases my design would need to be custom fitted, but as each donkey smith attachment only comprises 4 pieces of steel welded together and 2 mandrel bends, this would be relatively easy, especially if the smith machine itself was used as a jig. The back support assembly is comprised of 2 pieces of round steel tube, with a bent piece of plate steel welded in between the two, and a spring loaded pull pin welded to each round tube. The cushion is comprised of leather or vinyl, and foam internally. Leading to a cost well under $300, even in cases where customization is required.
- 格式
- Rendering、Autodesk Inventor、Other、STL、STEP / IGES
- 分类
- Industrial design、Machine design、Sport
- 标签
- donkeycalfraise
- 数据更新
- 2026-09-16T08:22:13Z
