Uploaded October 2022 | Updated September 2026, 2 weeks ago

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I never seen anyone do a hidden blade using a gravity knife as the inspiration. Its simple yet effective compared to a otf knife it would be more reasonable to be made back in mid-evil times. I wanted them to be not to complicated for now the hinge requires enough force to break friction and gravity is enough for the blade to come out but if you wanna add magnets to increase tension I show where in the video you should put them I did test both ways the magnet is more guaranteed to catch right but I like both ways although future design will use super weak spring.
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