Adjustable Ratchet Wrench
grabcad
The University of Alabama in Huntsville student has designed an innovative tool called the Adjustable Ratchet Wrench (ARW), which combines the advantages and eliminates the disadvantages of both ratchets and adjustable wrenches. The ARW features a unique adjustable "aperture" that can fit any size bolt between 17 to 49 mm, enabling quick tightening or loosening without requiring unique sockets or risking slipping off bolts. Printed in two pieces using ABS plastic on a dual-extruder FDM 3D printer, the ARW consists of seven intricate parts, including a ratcheting ring, adjustable jaws, and worm gear, allowing precise adjustment and operation. The design also takes into consideration layer thickness, moving component tolerances, and soluble support for optimal functionality. Check out the demo video and CAD rendering for more details on this versatile tool.
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