basically this is a design of a fully funtional hidden blade that i designed a while back, its basically the same mechanics of a regular daotf knife except with a pully wheel on it to make it work by moving your hand instead of moving a switch
Hey sorry for the late reply! This concept of the DAOTF Hidden Blade is a bit out-dated so I wouldn't feel right giving you the go ahead on it after explaining the springs out of fear of mis-measurements and malfunction but I would be willing to redesign the concept for you with my current knowledge! I just don't trust the me that made this 2 years ago you know? XD but I did gain more knowledge over the years and I'd rather redo the concept to what I've learned so you have something that works!
oh no worries ^^ I've been needing to do a re-imagining/re-concept of it anyways so its no biggie :3 I just dont want anyone going off of the old outdated concept I put out and end up with something that doesn't work so I really dont mind haha