Retractable 'Cat Claw' Box Cutter

cults3d

Updated: 04Feb2021 This is kickstarter is a blatant copy of my design, in form and function: https://www.kickstarter.com/projects/oceanusbrass/kraken In no manner was there an agreement to license the design for commercial use. For those in support of the creed of free and open source, sharing of design, hold fast Inspired by this thing: https://www.kickstarter.com/projects/caswellknives/caswell-morphing-karambit-premium-utility-knife Preamble... It started out for fun, to figure out the mechanism... Having shown it off to my sensible colleagues, seeing it held in their hands, it made me realised how menacing this thing is. Please use it wisely, it is nevertheless a neat practical tool, not meant to be used as a weapon. Thing holds a standard Stanley box cutter blade. Print 100% infill, total print time ~4hours Bill of Material: 1) 4 x M3 x 18mm countersunk screw, for securing the linkage 2) 4 x Nylon lock nut, if not available use thread-locking adhesive 3) 2 x M2.5 x 6mm countersunk screw, to secure the blade Demo Video: https://youtu.be/r5RyLYJLqYc