Hey man, thank you so much for this. Free blueprints, and an in depth explanation and tutorial for the mechanism. Really appreciate it. Hope you make more content.

you're so kind for sharing the blueprints, thanks so much!

Can I use wood or metal? Yes.

oh my god, ive been looking for so long to find a person that explains to me how to do everything in detail, thank you so much for this :D

This needs a standing ovation, gg man, thank you very much, especially for being so generous and taking your time to create the blueprints. Question: around how much sheets of A4 paper do you think it will take to build it, like an aproximate amount?

When teacher asks me:"where is your homework?"

Thanks for this!! Ive been looking for a way to make hidden blades for months and your blueprints are fantastic. I changed the paper out with metal and tweaked it a tiny bit but if it wasnt for your blueprints i would have never been able to even get that far!!

This is awesome finally someone that made a retractable one

Some one needs to buy this guy a 3D printer. You have a unique gift.

This is really all made of paper? That is insane, good job man!

This is one of the best and most accurate HB tutorial ever. Keep it up Shelden!

thank you for sharing all the blueprints. Your blade really looks perfect.

cool bro i might need to try make a paper one sometime!

Thanks Sheldon!!!!!! Keep up the great work Leonardo!

You just got a new subscriber...Thank you for being so generous,helpful and Inspiring, taking your precious time to explain and create those blueprints an dc let us download them....I hope your channel one day become one of the biggest channels in YT...God Bless you Man!!

Everyone uses the Ammnra system he made and even replicates the overall look, but I can't hate. It's a great design and it's cool to see other people making their own versions. As a designer of a hidden blade type myself, it is our goal, or at least one of mine, to have people try to replicate our work. Sure making money off them is cool, too, but getting more people into the art of crafting something and finding a sense of satisfaction out of it is just as nice.

This guide is so amazing! I always wanted to do a hidden blade for myself and thanks to it i know how ^^ Shelden Cauldill, you did a really good job.

So, I'm intending to make something like this out of Lego that hands out little business cards. This will be a good reference for putting something like that together. Thank you for explaining everything.