I resized the parts approximately two times as big and printed it with the measurements. I figured I 'd have a better opportunity of success by making the model bigger, considering that it would be simpler to make the parts from wood: I made many of the parts from 1/4 plywood, thoroughly cutting them out.
This counts on the mass of the blade and momentum. To lock the blade in the forward (open) position, or the back (closed) position, there are wood springs that engage with completion of the blade when it's open, and a notch in the blade when it's closed: These springs are brushed aside by the slide, which has actually ramped sections.
As it slides forward, it pushes the spring aside and the blade is free to come back. It's a relatively complicated idea and all of the parts require to work exactly for it to work effectively, so a prototype is an excellent way to actually see the possible problems.
When I included what I believed sufficed, it triggered the "U" shaped parts to push down on the slide, which in turn pushed down on the blade. The outcome was a lot of friction that kept the blade from moving freely. I have actually given that created a way to conquer this problem, however there are still a lot of other things to exercise.
To make it from steel, I might vastly decrease the size of the parts, but it would still be fairly large, generally because of the size of the spring required for it to work. I've been thinking that it could be made smaller if I used two compression springs, instead of one larger tension spring, which would be my next step in the design.
Perhaps drilling out the base of the blade and fill it in with a much heavier metal, like lead, would increase the mass enough to bring the blade forward. If Look At This Piece would like more information or to show something that you have actually made, I began an online forum topic on the. I'll be publishing information on my progress there.
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